diff --git a/1984/anonymous/Makefile b/1984/anonymous/Makefile
index 1e4034f10..960fb8a46 100644
--- a/1984/anonymous/Makefile
+++ b/1984/anonymous/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1984/decot/Makefile b/1984/decot/Makefile
index 8308646e5..f391da723 100644
--- a/1984/decot/Makefile
+++ b/1984/decot/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1984/laman/Makefile b/1984/laman/Makefile
index 0ac855a53..a2c5f193c 100644
--- a/1984/laman/Makefile
+++ b/1984/laman/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1984/mullender/Makefile b/1984/mullender/Makefile
index 1f71cfb11..d7ed0b158 100644
--- a/1984/mullender/Makefile
+++ b/1984/mullender/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f core
 	${RM} -f gentab
 	@-if [ -e sandwich ]; then \
diff --git a/1985/applin/Makefile b/1985/applin/Makefile
index 70a538b9a..1bfbdd1b3 100644
--- a/1985/applin/Makefile
+++ b/1985/applin/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1985/august/Makefile b/1985/august/Makefile
index d29d47577..e2977af26 100644
--- a/1985/august/Makefile
+++ b/1985/august/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1985/lycklama/Makefile b/1985/lycklama/Makefile
index 997b48b3c..a5565d8f3 100644
--- a/1985/lycklama/Makefile
+++ b/1985/lycklama/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1985/shapiro/Makefile b/1985/shapiro/Makefile
index bd030ac36..b25f0e5b2 100644
--- a/1985/shapiro/Makefile
+++ b/1985/shapiro/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1985/sicherman/Makefile b/1985/sicherman/Makefile
index 2cd4dd6a6..c77ea6b88 100644
--- a/1985/sicherman/Makefile
+++ b/1985/sicherman/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/applin/Makefile b/1986/applin/Makefile
index 674ebfbb2..b6ecbd20a 100644
--- a/1986/applin/Makefile
+++ b/1986/applin/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/august/Makefile b/1986/august/Makefile
index fd8ba7f59..9060b1c01 100644
--- a/1986/august/Makefile
+++ b/1986/august/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/bright/Makefile b/1986/bright/Makefile
index 739590f0d..bcd4491f9 100644
--- a/1986/bright/Makefile
+++ b/1986/bright/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/hague/Makefile b/1986/hague/Makefile
index 4d35cbbf6..c42a3a889 100644
--- a/1986/hague/Makefile
+++ b/1986/hague/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/holloway/Makefile b/1986/holloway/Makefile
index 3229ec3fc..31ddaefdd 100644
--- a/1986/holloway/Makefile
+++ b/1986/holloway/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/marshall/Makefile b/1986/marshall/Makefile
index 7c7246f4f..44dbc46bc 100644
--- a/1986/marshall/Makefile
+++ b/1986/marshall/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/pawka/Makefile b/1986/pawka/Makefile
index 810d7a7c5..2d7448788 100644
--- a/1986/pawka/Makefile
+++ b/1986/pawka/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1986/stein/Makefile b/1986/stein/Makefile
index 9846bc294..7a96909b8 100644
--- a/1986/stein/Makefile
+++ b/1986/stein/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f a.out
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1986/wall/Makefile b/1986/wall/Makefile
index edbc9660f..41b59c254 100644
--- a/1986/wall/Makefile
+++ b/1986/wall/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1987/biggar/Makefile b/1987/biggar/Makefile
index 469b8de1b..287c41612 100644
--- a/1987/biggar/Makefile
+++ b/1987/biggar/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1987/heckbert/Makefile b/1987/heckbert/Makefile
index 92dfdbbc8..24d0ab9ca 100644
--- a/1987/heckbert/Makefile
+++ b/1987/heckbert/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f bar.c ph ph.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1987/hines/Makefile b/1987/hines/Makefile
index 2479c4a7b..4ba2ad5b9 100644
--- a/1987/hines/Makefile
+++ b/1987/hines/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1987/korn/Makefile b/1987/korn/Makefile
index 3f94321c7..71c77e7b1 100644
--- a/1987/korn/Makefile
+++ b/1987/korn/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1987/lievaart/Makefile b/1987/lievaart/Makefile
index 044841994..10f15a9d2 100644
--- a/1987/lievaart/Makefile
+++ b/1987/lievaart/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1987/wall/Makefile b/1987/wall/Makefile
index 414d62525..c2f9e18b4 100644
--- a/1987/wall/Makefile
+++ b/1987/wall/Makefile
@@ -216,6 +216,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1987/westley/Makefile b/1987/westley/Makefile
index e85513580..d6b663dc2 100644
--- a/1987/westley/Makefile
+++ b/1987/westley/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/applin/Makefile b/1988/applin/Makefile
index 152394b07..4c2d13a0e 100644
--- a/1988/applin/Makefile
+++ b/1988/applin/Makefile
@@ -226,7 +226,8 @@ clean:
 	fi
 
 clobber: clean
-	${RM} -f ${TARGET} ${ALT_TARGET} zsmall.c
+	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM zsmall.c
 	${RM} -f large.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1988/dale/Makefile b/1988/dale/Makefile
index 42acaa3e6..3b71f8339 100644
--- a/1988/dale/Makefile
+++ b/1988/dale/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/isaak/Makefile b/1988/isaak/Makefile
index a7d5537e6..cec10b716 100644
--- a/1988/isaak/Makefile
+++ b/1988/isaak/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/litmaath/Makefile b/1988/litmaath/Makefile
index 8191bdf3d..1282c29ed 100644
--- a/1988/litmaath/Makefile
+++ b/1988/litmaath/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/phillipps/Makefile b/1988/phillipps/Makefile
index 5cc2818ad..05357ee11 100644
--- a/1988/phillipps/Makefile
+++ b/1988/phillipps/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/reddy/Makefile b/1988/reddy/Makefile
index e417aa892..d358e5bfe 100644
--- a/1988/reddy/Makefile
+++ b/1988/reddy/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/robison/Makefile b/1988/robison/Makefile
index 8671b901e..ab4e53112 100644
--- a/1988/robison/Makefile
+++ b/1988/robison/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/spinellis/Makefile b/1988/spinellis/Makefile
index e41ce81df..36fe6c3f0 100644
--- a/1988/spinellis/Makefile
+++ b/1988/spinellis/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1988/westley/Makefile b/1988/westley/Makefile
index dac5ccea1..52d5e85f1 100644
--- a/1988/westley/Makefile
+++ b/1988/westley/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/fubar/Makefile b/1989/fubar/Makefile
index 67edf8a01..5f541ec26 100644
--- a/1989/fubar/Makefile
+++ b/1989/fubar/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ouroboros.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1989/jar.1/Makefile b/1989/jar.1/Makefile
index 708ac1756..a383e2e19 100644
--- a/1989/jar.1/Makefile
+++ b/1989/jar.1/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/jar.2/Makefile b/1989/jar.2/Makefile
index 5324d6079..22e0a4315 100644
--- a/1989/jar.2/Makefile
+++ b/1989/jar.2/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/ovdluhe/Makefile b/1989/ovdluhe/Makefile
index 6f6aa9ff7..eedacb161 100644
--- a/1989/ovdluhe/Makefile
+++ b/1989/ovdluhe/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/paul/Makefile b/1989/paul/Makefile
index f71a78134..67e4fa8e0 100644
--- a/1989/paul/Makefile
+++ b/1989/paul/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/robison/Makefile b/1989/robison/Makefile
index 47d4beedb..73617d9c2 100644
--- a/1989/robison/Makefile
+++ b/1989/robison/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/roemer/Makefile b/1989/roemer/Makefile
index c6400c40f..b3afa0cdf 100644
--- a/1989/roemer/Makefile
+++ b/1989/roemer/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/tromp/Makefile b/1989/tromp/Makefile
index d76549981..54d06ba24 100644
--- a/1989/tromp/Makefile
+++ b/1989/tromp/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/vanb/Makefile b/1989/vanb/Makefile
index f790a28fe..87e3e1fb9 100644
--- a/1989/vanb/Makefile
+++ b/1989/vanb/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1989/westley/Makefile b/1989/westley/Makefile
index 9360f37d3..abe3d50c9 100644
--- a/1989/westley/Makefile
+++ b/1989/westley/Makefile
@@ -224,6 +224,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ver0.c ver1.c ver2.c ver3.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1990/baruch/Makefile b/1990/baruch/Makefile
index 1f93fb6ab..a44f161aa 100644
--- a/1990/baruch/Makefile
+++ b/1990/baruch/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/cmills/Makefile b/1990/cmills/Makefile
index 5fb6464d0..8552f5027 100644
--- a/1990/cmills/Makefile
+++ b/1990/cmills/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/dds/Makefile b/1990/dds/Makefile
index 77e36a0b4..0054f855b 100644
--- a/1990/dds/Makefile
+++ b/1990/dds/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/dg/Makefile b/1990/dg/Makefile
index 0e9184efc..254314d80 100644
--- a/1990/dg/Makefile
+++ b/1990/dg/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/jaw/Makefile b/1990/jaw/Makefile
index ee99c4e25..d0a88b309 100644
--- a/1990/jaw/Makefile
+++ b/1990/jaw/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/pjr/Makefile b/1990/pjr/Makefile
index a0fad7aeb..11922649d 100644
--- a/1990/pjr/Makefile
+++ b/1990/pjr/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/scjones/Makefile b/1990/scjones/Makefile
index 1a5568b32..0743e154e 100644
--- a/1990/scjones/Makefile
+++ b/1990/scjones/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/stig/Makefile b/1990/stig/Makefile
index 2a27ffd1f..da8ceb3be 100644
--- a/1990/stig/Makefile
+++ b/1990/stig/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f o.c o
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1990/tbr/Makefile b/1990/tbr/Makefile
index 66cf1cc16..8f5d3bb26 100644
--- a/1990/tbr/Makefile
+++ b/1990/tbr/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1990/theorem/Makefile b/1990/theorem/Makefile
index 0de4b1561..6109ff608 100644
--- a/1990/theorem/Makefile
+++ b/1990/theorem/Makefile
@@ -226,6 +226,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f sorter.c sorter
 	${RM} -f fibonacci.c fibonacci
 	${RM} -f theorem_bkp.c theorem_bkp
diff --git a/1990/westley/Makefile b/1990/westley/Makefile
index 76f15317f..734307e71 100644
--- a/1990/westley/Makefile
+++ b/1990/westley/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/ant/Makefile b/1991/ant/Makefile
index 863b1fa74..125f769b8 100644
--- a/1991/ant/Makefile
+++ b/1991/ant/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/brnstnd/Makefile b/1991/brnstnd/Makefile
index 9dcf3cfd6..e4342e336 100644
--- a/1991/brnstnd/Makefile
+++ b/1991/brnstnd/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/buzzard/Makefile b/1991/buzzard/Makefile
index a3fa78513..e6d7e3dbb 100644
--- a/1991/buzzard/Makefile
+++ b/1991/buzzard/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/cdupont/Makefile b/1991/cdupont/Makefile
index 801c9a909..74a4692d5 100644
--- a/1991/cdupont/Makefile
+++ b/1991/cdupont/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/davidguy/Makefile b/1991/davidguy/Makefile
index 0b83b5bec..b522e140f 100644
--- a/1991/davidguy/Makefile
+++ b/1991/davidguy/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/dds/Makefile b/1991/dds/Makefile
index cbd841e0f..4934429d5 100644
--- a/1991/dds/Makefile
+++ b/1991/dds/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f a.out
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1991/fine/Makefile b/1991/fine/Makefile
index 5c5644750..5bfc6067a 100644
--- a/1991/fine/Makefile
+++ b/1991/fine/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/rince/Makefile b/1991/rince/Makefile
index da9bf9670..681278ff1 100644
--- a/1991/rince/Makefile
+++ b/1991/rince/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1991/westley/Makefile b/1991/westley/Makefile
index 71fd9931b..d58e2dc3a 100644
--- a/1991/westley/Makefile
+++ b/1991/westley/Makefile
@@ -310,6 +310,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f merlyn merlyn.c nextmove nextmove.c
 	${RM} -f merlyn.alt merlyn.alt.c nextmove.alt nextmove.alt.c
 	${RM} -f ttt_game ttt_game.c ttt_old.c ttt_new.c nextmove
diff --git a/1992/adrian/Makefile b/1992/adrian/Makefile
index 8bfdc25d3..eadb26c34 100644
--- a/1992/adrian/Makefile
+++ b/1992/adrian/Makefile
@@ -230,6 +230,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f adbasename adbasename.c adecho adecho.c adgrep adhead
 	${RM} -f adhead.c adrian adsleep adsleep.c adwc adwc.c
 	${RM} -f ad.alt.temp adwc.alt.c
diff --git a/1992/albert/Makefile b/1992/albert/Makefile
index 35168be8a..941203307 100644
--- a/1992/albert/Makefile
+++ b/1992/albert/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1992/ant/Makefile b/1992/ant/Makefile
index 6cfc283cd..9ba9334e6 100644
--- a/1992/ant/Makefile
+++ b/1992/ant/Makefile
@@ -212,6 +212,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f am am.safe
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1992/buzzard.1/Makefile b/1992/buzzard.1/Makefile
index 8a0af3038..bcb47e111 100644
--- a/1992/buzzard.1/Makefile
+++ b/1992/buzzard.1/Makefile
@@ -235,6 +235,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f babble.cppcb babble
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1992/buzzard.2/Makefile b/1992/buzzard.2/Makefile
index afd3abc9d..b48f6adbd 100644
--- a/1992/buzzard.2/Makefile
+++ b/1992/buzzard.2/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f first buzzard.2
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1992/gson/Makefile b/1992/gson/Makefile
index 3efeeb9c0..860cc36a2 100644
--- a/1992/gson/Makefile
+++ b/1992/gson/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f og
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1992/imc/Makefile b/1992/imc/Makefile
index 8d716245b..4607e54b1 100644
--- a/1992/imc/Makefile
+++ b/1992/imc/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1992/kivinen/Makefile b/1992/kivinen/Makefile
index bc8d8afc5..0aae99170 100644
--- a/1992/kivinen/Makefile
+++ b/1992/kivinen/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1992/lush/Makefile b/1992/lush/Makefile
index 3e22e1fea..983a3d756 100644
--- a/1992/lush/Makefile
+++ b/1992/lush/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1992/marangon/Makefile b/1992/marangon/Makefile
index 514362e54..94e89182f 100644
--- a/1992/marangon/Makefile
+++ b/1992/marangon/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1992/nathan/Makefile b/1992/nathan/Makefile
index dd983127f..828ff16a5 100644
--- a/1992/nathan/Makefile
+++ b/1992/nathan/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1992/vern/Makefile b/1992/vern/Makefile
index 2feaa51b3..0aaa5f638 100644
--- a/1992/vern/Makefile
+++ b/1992/vern/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}.tmp.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1992/westley/Makefile b/1992/westley/Makefile
index 4223966c1..88336649e 100644
--- a/1992/westley/Makefile
+++ b/1992/westley/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f whereami whereami.alt
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/ant/Makefile b/1993/ant/Makefile
index 630a4756b..ff099a6aa 100644
--- a/1993/ant/Makefile
+++ b/1993/ant/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ag ag.txt
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/cmills/Makefile b/1993/cmills/Makefile
index 04971a158..967ece1e9 100644
--- a/1993/cmills/Makefile
+++ b/1993/cmills/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f chris
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/dgibson/Makefile b/1993/dgibson/Makefile
index 416f09ad5..fdca2d9c5 100644
--- a/1993/dgibson/Makefile
+++ b/1993/dgibson/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f life.d data.name
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/ejb/Makefile b/1993/ejb/Makefile
index 9d0b8ca3d..06ba4841d 100644
--- a/1993/ejb/Makefile
+++ b/1993/ejb/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1993/jonth/Makefile b/1993/jonth/Makefile
index 3a76cfcb7..78607abc6 100644
--- a/1993/jonth/Makefile
+++ b/1993/jonth/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f jonth.tmp.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/leo/Makefile b/1993/leo/Makefile
index 3d26c7882..d87d3dfab 100644
--- a/1993/leo/Makefile
+++ b/1993/leo/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f mind
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/lmfjyh/Makefile b/1993/lmfjyh/Makefile
index 9a06bdfab..5414efe2d 100644
--- a/1993/lmfjyh/Makefile
+++ b/1993/lmfjyh/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f \"\;main\(\)\{puts\(\"Hello\ World!\"\)\;\}char\*C=\".c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/plummer/Makefile b/1993/plummer/Makefile
index 63964010a..b1c56da2e 100644
--- a/1993/plummer/Makefile
+++ b/1993/plummer/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1993/rince/Makefile b/1993/rince/Makefile
index 9aafb7f4c..badac181e 100644
--- a/1993/rince/Makefile
+++ b/1993/rince/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f jkb
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1993/schnitzi/Makefile b/1993/schnitzi/Makefile
index 72ef3ac32..ebfd377cb 100644
--- a/1993/schnitzi/Makefile
+++ b/1993/schnitzi/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1993/vanb/Makefile b/1993/vanb/Makefile
index 25bbdd410..bd6544ccc 100644
--- a/1993/vanb/Makefile
+++ b/1993/vanb/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/dodsond1/Makefile b/1994/dodsond1/Makefile
index 803d90067..08633212f 100644
--- a/1994/dodsond1/Makefile
+++ b/1994/dodsond1/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/dodsond2/Makefile b/1994/dodsond2/Makefile
index 9ea22ffef..d93a70cab 100644
--- a/1994/dodsond2/Makefile
+++ b/1994/dodsond2/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/horton/Makefile b/1994/horton/Makefile
index dea749583..6c8efe013 100644
--- a/1994/horton/Makefile
+++ b/1994/horton/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/imc/Makefile b/1994/imc/Makefile
index 19b537d61..e7f5f3638 100644
--- a/1994/imc/Makefile
+++ b/1994/imc/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/ldb/Makefile b/1994/ldb/Makefile
index 0c3848857..cb2f90194 100644
--- a/1994/ldb/Makefile
+++ b/1994/ldb/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/schnitzi/Makefile b/1994/schnitzi/Makefile
index 584f48117..e63301a68 100644
--- a/1994/schnitzi/Makefile
+++ b/1994/schnitzi/Makefile
@@ -215,6 +215,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/shapiro/Makefile b/1994/shapiro/Makefile
index 3af76f0be..ae19ac068 100644
--- a/1994/shapiro/Makefile
+++ b/1994/shapiro/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}_t2.c ${PROG}_t1
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1994/smr/Makefile b/1994/smr/Makefile
index f31dfc8d9..7e7b7b660 100644
--- a/1994/smr/Makefile
+++ b/1994/smr/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/tvr/Makefile b/1994/tvr/Makefile
index 07d03691f..6d882a60a 100644
--- a/1994/tvr/Makefile
+++ b/1994/tvr/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/weisberg/Makefile b/1994/weisberg/Makefile
index bcf35133b..17ebe40d7 100644
--- a/1994/weisberg/Makefile
+++ b/1994/weisberg/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1994/westley/Makefile b/1994/westley/Makefile
index 7bc9d6ee7..ebb6ce81d 100644
--- a/1994/westley/Makefile
+++ b/1994/westley/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/cdua/Makefile b/1995/cdua/Makefile
index 8c0aa0d06..89a51d167 100644
--- a/1995/cdua/Makefile
+++ b/1995/cdua/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/dodsond1/Makefile b/1995/dodsond1/Makefile
index b0f204e2d..245711030 100644
--- a/1995/dodsond1/Makefile
+++ b/1995/dodsond1/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/dodsond2/Makefile b/1995/dodsond2/Makefile
index f3f0cccd6..2e5bceeb7 100644
--- a/1995/dodsond2/Makefile
+++ b/1995/dodsond2/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/esde/Makefile b/1995/esde/Makefile
index 1e048a607..540b5099b 100644
--- a/1995/esde/Makefile
+++ b/1995/esde/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/garry/Makefile b/1995/garry/Makefile
index fd21854d8..4588e267e 100644
--- a/1995/garry/Makefile
+++ b/1995/garry/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/heathbar/Makefile b/1995/heathbar/Makefile
index df4610b03..9c109065a 100644
--- a/1995/heathbar/Makefile
+++ b/1995/heathbar/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/leo/Makefile b/1995/leo/Makefile
index 74feeec6e..ad50ee0ea 100644
--- a/1995/leo/Makefile
+++ b/1995/leo/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/makarios/Makefile b/1995/makarios/Makefile
index e230e7208..7f357ab69 100644
--- a/1995/makarios/Makefile
+++ b/1995/makarios/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/savastio/Makefile b/1995/savastio/Makefile
index 1ad9e0ff6..f97bc8d54 100644
--- a/1995/savastio/Makefile
+++ b/1995/savastio/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/schnitzi/Makefile b/1995/schnitzi/Makefile
index bd62f8372..24733599e 100644
--- a/1995/schnitzi/Makefile
+++ b/1995/schnitzi/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/spinellis/Makefile b/1995/spinellis/Makefile
index f52d6b2ae..f82177dff 100644
--- a/1995/spinellis/Makefile
+++ b/1995/spinellis/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1995/vanschnitz/Makefile b/1995/vanschnitz/Makefile
index eac468f41..ad42e9c64 100644
--- a/1995/vanschnitz/Makefile
+++ b/1995/vanschnitz/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/august/Makefile b/1996/august/Makefile
index 6a0170dbf..8e50fa200 100644
--- a/1996/august/Makefile
+++ b/1996/august/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/dalbec/Makefile b/1996/dalbec/Makefile
index 08042314e..89a22e8cf 100644
--- a/1996/dalbec/Makefile
+++ b/1996/dalbec/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/eldby/Makefile b/1996/eldby/Makefile
index b69453059..425e5df76 100644
--- a/1996/eldby/Makefile
+++ b/1996/eldby/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/gandalf/Makefile b/1996/gandalf/Makefile
index a45bd745a..4a3c8ee38 100644
--- a/1996/gandalf/Makefile
+++ b/1996/gandalf/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/huffman/Makefile b/1996/huffman/Makefile
index 9eb5990ea..15986cd03 100644
--- a/1996/huffman/Makefile
+++ b/1996/huffman/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/jonth/Makefile b/1996/jonth/Makefile
index 6e2a5a3bd..3b16470a3 100644
--- a/1996/jonth/Makefile
+++ b/1996/jonth/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/rcm/Makefile b/1996/rcm/Makefile
index 567bc6993..fca44e185 100644
--- a/1996/rcm/Makefile
+++ b/1996/rcm/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/schweikh1/Makefile b/1996/schweikh1/Makefile
index a6c4bed93..585b2cc66 100644
--- a/1996/schweikh1/Makefile
+++ b/1996/schweikh1/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/schweikh2/Makefile b/1996/schweikh2/Makefile
index 84e00394f..7b5bcbbcc 100644
--- a/1996/schweikh2/Makefile
+++ b/1996/schweikh2/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/schweikh3/Makefile b/1996/schweikh3/Makefile
index 59ccb5b28..a3994795f 100644
--- a/1996/schweikh3/Makefile
+++ b/1996/schweikh3/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1996/westley/Makefile b/1996/westley/Makefile
index 909142996..e670e7351 100644
--- a/1996/westley/Makefile
+++ b/1996/westley/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/banks/Makefile b/1998/banks/Makefile
index b523e8e84..315611910 100644
--- a/1998/banks/Makefile
+++ b/1998/banks/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/bas1/Makefile b/1998/bas1/Makefile
index ed9f15d6f..e5fbe7b7f 100644
--- a/1998/bas1/Makefile
+++ b/1998/bas1/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/bas2/Makefile b/1998/bas2/Makefile
index 240dcc620..d114891e6 100644
--- a/1998/bas2/Makefile
+++ b/1998/bas2/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/chaos/Makefile b/1998/chaos/Makefile
index 1d34f2618..10a9c2710 100644
--- a/1998/chaos/Makefile
+++ b/1998/chaos/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}_nohalf.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1998/df/Makefile b/1998/df/Makefile
index a8c3355b1..0277c88df 100644
--- a/1998/df/Makefile
+++ b/1998/df/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/dlowe/Makefile b/1998/dlowe/Makefile
index 9028d2d21..a3aff6987 100644
--- a/1998/dlowe/Makefile
+++ b/1998/dlowe/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/dloweneil/Makefile b/1998/dloweneil/Makefile
index 00909514b..518f8f71e 100644
--- a/1998/dloweneil/Makefile
+++ b/1998/dloweneil/Makefile
@@ -212,6 +212,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/dorssel/Makefile b/1998/dorssel/Makefile
index e8d47efbb..eb9c9a6ff 100644
--- a/1998/dorssel/Makefile
+++ b/1998/dorssel/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/fanf/Makefile b/1998/fanf/Makefile
index 5f78ac22b..5f8eed97d 100644
--- a/1998/fanf/Makefile
+++ b/1998/fanf/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}tmp1.c ${PROG}tmp2.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/1998/schnitzi/Makefile b/1998/schnitzi/Makefile
index c5a0e188a..cc262bb71 100644
--- a/1998/schnitzi/Makefile
+++ b/1998/schnitzi/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/schweikh1/Makefile b/1998/schweikh1/Makefile
index 4491a9d03..5216774f8 100644
--- a/1998/schweikh1/Makefile
+++ b/1998/schweikh1/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/schweikh2/Makefile b/1998/schweikh2/Makefile
index fde34944d..d5045d573 100644
--- a/1998/schweikh2/Makefile
+++ b/1998/schweikh2/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/schweikh3/Makefile b/1998/schweikh3/Makefile
index 07e2453b5..d7e2f2bab 100644
--- a/1998/schweikh3/Makefile
+++ b/1998/schweikh3/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/1998/tomtorfs/Makefile b/1998/tomtorfs/Makefile
index c452e1a9a..a76f93dff 100644
--- a/1998/tomtorfs/Makefile
+++ b/1998/tomtorfs/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/anderson/Makefile b/2000/anderson/Makefile
index 1c8d53c54..6c2938c30 100644
--- a/2000/anderson/Makefile
+++ b/2000/anderson/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/bellard/Makefile b/2000/bellard/Makefile
index de42a6f12..c89e8c196 100644
--- a/2000/bellard/Makefile
+++ b/2000/bellard/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/bmeyer/Makefile b/2000/bmeyer/Makefile
index 65ce05972..7bd08c94d 100644
--- a/2000/bmeyer/Makefile
+++ b/2000/bmeyer/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/briddlebane/Makefile b/2000/briddlebane/Makefile
index f6d9b27a0..153530d25 100644
--- a/2000/briddlebane/Makefile
+++ b/2000/briddlebane/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/dhyang/Makefile b/2000/dhyang/Makefile
index 5e9d8f90b..20de90072 100644
--- a/2000/dhyang/Makefile
+++ b/2000/dhyang/Makefile
@@ -231,6 +231,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/dlowe/Makefile b/2000/dlowe/Makefile
index c2927f9d4..80d28858a 100644
--- a/2000/dlowe/Makefile
+++ b/2000/dlowe/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/jarijyrki/Makefile b/2000/jarijyrki/Makefile
index 5f22acb43..edd0a195d 100644
--- a/2000/jarijyrki/Makefile
+++ b/2000/jarijyrki/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f myedits.info
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2000/natori/Makefile b/2000/natori/Makefile
index aa75728c7..795602e69 100644
--- a/2000/natori/Makefile
+++ b/2000/natori/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/primenum/Makefile b/2000/primenum/Makefile
index b14595fd1..1349563c3 100644
--- a/2000/primenum/Makefile
+++ b/2000/primenum/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/rince/Makefile b/2000/rince/Makefile
index 50dcd25fb..395f0b6ff 100644
--- a/2000/rince/Makefile
+++ b/2000/rince/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/robison/Makefile b/2000/robison/Makefile
index 5e017eb98..52b2de93c 100644
--- a/2000/robison/Makefile
+++ b/2000/robison/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/schneiderwent/Makefile b/2000/schneiderwent/Makefile
index 773c08806..d61f80cd1 100644
--- a/2000/schneiderwent/Makefile
+++ b/2000/schneiderwent/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/thadgavin/Makefile b/2000/thadgavin/Makefile
index 41a6307b4..8ed8c5916 100644
--- a/2000/thadgavin/Makefile
+++ b/2000/thadgavin/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2000/tomx/Makefile b/2000/tomx/Makefile
index 743174f2d..7c9db015c 100644
--- a/2000/tomx/Makefile
+++ b/2000/tomx/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/anonymous/Makefile b/2001/anonymous/Makefile
index ac32465aa..b22f85dba 100644
--- a/2001/anonymous/Makefile
+++ b/2001/anonymous/Makefile
@@ -255,6 +255,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f anonymous.ten.bak ten.od ten.od.bak ten.txt ten.bak.txt
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2001/bellard/Makefile b/2001/bellard/Makefile
index 6a06fd8a5..23fc9d5ba 100644
--- a/2001/bellard/Makefile
+++ b/2001/bellard/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/cheong/Makefile b/2001/cheong/Makefile
index 9d9746f4e..d1e9fbf0b 100644
--- a/2001/cheong/Makefile
+++ b/2001/cheong/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/coupard/Makefile b/2001/coupard/Makefile
index 062fd56c7..a6ddcb702 100644
--- a/2001/coupard/Makefile
+++ b/2001/coupard/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/ctk/Makefile b/2001/ctk/Makefile
index 6949e3469..0cf35c2f5 100644
--- a/2001/ctk/Makefile
+++ b/2001/ctk/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/dgbeards/Makefile b/2001/dgbeards/Makefile
index 5d25cdc47..719da4830 100644
--- a/2001/dgbeards/Makefile
+++ b/2001/dgbeards/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/herrmann1/Makefile b/2001/herrmann1/Makefile
index 453733a55..8558d5de3 100644
--- a/2001/herrmann1/Makefile
+++ b/2001/herrmann1/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/herrmann2/Makefile b/2001/herrmann2/Makefile
index 52b854a82..14caeb020 100644
--- a/2001/herrmann2/Makefile
+++ b/2001/herrmann2/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/jason/Makefile b/2001/jason/Makefile
index b2e33fc06..16ba2ab6e 100644
--- a/2001/jason/Makefile
+++ b/2001/jason/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/kev/Makefile b/2001/kev/Makefile
index d3105303c..4449ffbc6 100644
--- a/2001/kev/Makefile
+++ b/2001/kev/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/ollinger/Makefile b/2001/ollinger/Makefile
index 8f214ea35..b2da5fc0d 100644
--- a/2001/ollinger/Makefile
+++ b/2001/ollinger/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/rosten/Makefile b/2001/rosten/Makefile
index a219c833e..1dcfcf26d 100644
--- a/2001/rosten/Makefile
+++ b/2001/rosten/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/schweikh/Makefile b/2001/schweikh/Makefile
index 76c030995..05e013419 100644
--- a/2001/schweikh/Makefile
+++ b/2001/schweikh/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/westley/Makefile b/2001/westley/Makefile
index 5f96fb2c0..412223f0a 100644
--- a/2001/westley/Makefile
+++ b/2001/westley/Makefile
@@ -232,6 +232,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2001/williams/Makefile b/2001/williams/Makefile
index 43fffb233..6e003cf2e 100644
--- a/2001/williams/Makefile
+++ b/2001/williams/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/anonymous/Makefile b/2004/anonymous/Makefile
index dbd216f3c..d35119a8d 100644
--- a/2004/anonymous/Makefile
+++ b/2004/anonymous/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/arachnid/Makefile b/2004/arachnid/Makefile
index 90d260887..474b6a757 100644
--- a/2004/arachnid/Makefile
+++ b/2004/arachnid/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/burley/Makefile b/2004/burley/Makefile
index 6f609d0f1..fe20f609b 100644
--- a/2004/burley/Makefile
+++ b/2004/burley/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/gavare/Makefile b/2004/gavare/Makefile
index 802f2ac6a..673fc7fd4 100644
--- a/2004/gavare/Makefile
+++ b/2004/gavare/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/gavin/Makefile b/2004/gavin/Makefile
index a1e2abb5c..b9ad22a34 100644
--- a/2004/gavin/Makefile
+++ b/2004/gavin/Makefile
@@ -252,6 +252,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f gavin fs.tar
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2004/hibachi/Makefile b/2004/hibachi/Makefile
index 993db8a83..b933b7c54 100644
--- a/2004/hibachi/Makefile
+++ b/2004/hibachi/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -rf build
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2004/hoyle/Makefile b/2004/hoyle/Makefile
index 4d364534e..90afa3af1 100644
--- a/2004/hoyle/Makefile
+++ b/2004/hoyle/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/jdalbec/Makefile b/2004/jdalbec/Makefile
index 71898ef34..6758a837b 100644
--- a/2004/jdalbec/Makefile
+++ b/2004/jdalbec/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}2.c ${PROG}3.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2004/kopczynski/Makefile b/2004/kopczynski/Makefile
index 1988e2f09..589fed63c 100644
--- a/2004/kopczynski/Makefile
+++ b/2004/kopczynski/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/newbern/Makefile b/2004/newbern/Makefile
index 0797a8be5..4c71a9064 100644
--- a/2004/newbern/Makefile
+++ b/2004/newbern/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/omoikane/Makefile b/2004/omoikane/Makefile
index 3ef09da43..faf81731b 100644
--- a/2004/omoikane/Makefile
+++ b/2004/omoikane/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/schnitzi/Makefile b/2004/schnitzi/Makefile
index 83f2f3879..995c6e3f6 100644
--- a/2004/schnitzi/Makefile
+++ b/2004/schnitzi/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/sds/Makefile b/2004/sds/Makefile
index da26bad66..77f453a01 100644
--- a/2004/sds/Makefile
+++ b/2004/sds/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/vik1/Makefile b/2004/vik1/Makefile
index 4423411d2..def519eda 100644
--- a/2004/vik1/Makefile
+++ b/2004/vik1/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2004/vik2/Makefile b/2004/vik2/Makefile
index 60a715240..2bc920181 100644
--- a/2004/vik2/Makefile
+++ b/2004/vik2/Makefile
@@ -230,6 +230,7 @@ vik2_clobber: vik2_clean
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}.possible.cat.death_1.c ${PROG}.possible.cat.death_2.c cat-killing-curiosity
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2005/aidan/Makefile b/2005/aidan/Makefile
index 9879a1279..51b9795af 100644
--- a/2005/aidan/Makefile
+++ b/2005/aidan/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/anon/Makefile b/2005/anon/Makefile
index 3fa466e46..4d2ca6718 100644
--- a/2005/anon/Makefile
+++ b/2005/anon/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/boutines/Makefile b/2005/boutines/Makefile
index b42c29d09..cb76ca449 100644
--- a/2005/boutines/Makefile
+++ b/2005/boutines/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/chia/Makefile b/2005/chia/Makefile
index f87381be9..da9a2018a 100644
--- a/2005/chia/Makefile
+++ b/2005/chia/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/giljade/Makefile b/2005/giljade/Makefile
index ae26f1df9..df5d6c7ae 100644
--- a/2005/giljade/Makefile
+++ b/2005/giljade/Makefile
@@ -210,7 +210,8 @@ clean:
 	fi
 
 clobber: clean
-	${RM} -f ${TARGET} ${ALT_TARGET} out
+	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM out
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/jetro/Makefile b/2005/jetro/Makefile
index 148f411ee..f92dd9a4d 100644
--- a/2005/jetro/Makefile
+++ b/2005/jetro/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/klausler/Makefile b/2005/klausler/Makefile
index 47aab7c72..074320936 100644
--- a/2005/klausler/Makefile
+++ b/2005/klausler/Makefile
@@ -224,6 +224,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/mikeash/Makefile b/2005/mikeash/Makefile
index d72a52253..b6e7169aa 100644
--- a/2005/mikeash/Makefile
+++ b/2005/mikeash/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/mynx/Makefile b/2005/mynx/Makefile
index 3d56ff100..3e859ecb4 100644
--- a/2005/mynx/Makefile
+++ b/2005/mynx/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/persano/Makefile b/2005/persano/Makefile
index 28f619b87..04193326c 100644
--- a/2005/persano/Makefile
+++ b/2005/persano/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/sykes/Makefile b/2005/sykes/Makefile
index 1de711787..0b8c84246 100644
--- a/2005/sykes/Makefile
+++ b/2005/sykes/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/timwi/Makefile b/2005/timwi/Makefile
index 229788932..b567ca5ef 100644
--- a/2005/timwi/Makefile
+++ b/2005/timwi/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/toledo/Makefile b/2005/toledo/Makefile
index f5b4a1332..51eea8d0b 100644
--- a/2005/toledo/Makefile
+++ b/2005/toledo/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/vik/Makefile b/2005/vik/Makefile
index 0284f666f..1a2c2b57f 100644
--- a/2005/vik/Makefile
+++ b/2005/vik/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2005/vince/Makefile b/2005/vince/Makefile
index 99ae409ec..6f93c60d0 100644
--- a/2005/vince/Makefile
+++ b/2005/vince/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/birken/Makefile b/2006/birken/Makefile
index db94cbd8e..280ca05e3 100644
--- a/2006/birken/Makefile
+++ b/2006/birken/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/borsanyi/Makefile b/2006/borsanyi/Makefile
index e540c565c..4098e55fa 100644
--- a/2006/borsanyi/Makefile
+++ b/2006/borsanyi/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/grothe/Makefile b/2006/grothe/Makefile
index 4a152443a..4b8eb727d 100644
--- a/2006/grothe/Makefile
+++ b/2006/grothe/Makefile
@@ -200,6 +200,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/hamre/Makefile b/2006/hamre/Makefile
index efaf7ea47..b6918ae11 100644
--- a/2006/hamre/Makefile
+++ b/2006/hamre/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/meyer/Makefile b/2006/meyer/Makefile
index 6f804fcb0..eae02082b 100644
--- a/2006/meyer/Makefile
+++ b/2006/meyer/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/monge/Makefile b/2006/monge/Makefile
index 2f67911e9..3b6fc5d4a 100644
--- a/2006/monge/Makefile
+++ b/2006/monge/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/night/Makefile b/2006/night/Makefile
index e305091f7..5a1958aeb 100644
--- a/2006/night/Makefile
+++ b/2006/night/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/sloane/Makefile b/2006/sloane/Makefile
index 3409f6b7c..e60349445 100644
--- a/2006/sloane/Makefile
+++ b/2006/sloane/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/stewart/Makefile b/2006/stewart/Makefile
index c78ff4e62..99d58adc4 100644
--- a/2006/stewart/Makefile
+++ b/2006/stewart/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/sykes1/Makefile b/2006/sykes1/Makefile
index 558a2e3ee..35a2dd706 100644
--- a/2006/sykes1/Makefile
+++ b/2006/sykes1/Makefile
@@ -217,6 +217,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}.html
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2006/sykes2/Makefile b/2006/sykes2/Makefile
index 847a905fb..1978f2932 100644
--- a/2006/sykes2/Makefile
+++ b/2006/sykes2/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/toledo1/Makefile b/2006/toledo1/Makefile
index 388d7046e..4fded2929 100644
--- a/2006/toledo1/Makefile
+++ b/2006/toledo1/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2006/toledo2/Makefile b/2006/toledo2/Makefile
index 43cfae65e..d1eb8982c 100644
--- a/2006/toledo2/Makefile
+++ b/2006/toledo2/Makefile
@@ -212,6 +212,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f C
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2006/toledo3/Makefile b/2006/toledo3/Makefile
index 9fdde7650..9dfb42450 100644
--- a/2006/toledo3/Makefile
+++ b/2006/toledo3/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/akari/Makefile b/2011/akari/Makefile
index e437b693b..4dcec6270 100644
--- a/2011/akari/Makefile
+++ b/2011/akari/Makefile
@@ -225,6 +225,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f akari2.c akari3.c akari4.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2011/blakely/Makefile b/2011/blakely/Makefile
index 5bcce087f..c19015af9 100644
--- a/2011/blakely/Makefile
+++ b/2011/blakely/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/borsanyi/Makefile b/2011/borsanyi/Makefile
index 03bd862bc..0920c43ef 100644
--- a/2011/borsanyi/Makefile
+++ b/2011/borsanyi/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/dlowe/Makefile b/2011/dlowe/Makefile
index d4ac69b5d..e8a4a9247 100644
--- a/2011/dlowe/Makefile
+++ b/2011/dlowe/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f trained.net
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2011/eastman/Makefile b/2011/eastman/Makefile
index d16e6b4e7..fd48a37f3 100644
--- a/2011/eastman/Makefile
+++ b/2011/eastman/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/fredriksson/Makefile b/2011/fredriksson/Makefile
index 8474caabd..9dda3e13d 100644
--- a/2011/fredriksson/Makefile
+++ b/2011/fredriksson/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/goren/Makefile b/2011/goren/Makefile
index 8906bd1ea..9b453c56a 100644
--- a/2011/goren/Makefile
+++ b/2011/goren/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/hamaji/Makefile b/2011/hamaji/Makefile
index 94709eb64..fedb6a6bf 100644
--- a/2011/hamaji/Makefile
+++ b/2011/hamaji/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/hou/Makefile b/2011/hou/Makefile
index 6d73192c5..d83aecc6e 100644
--- a/2011/hou/Makefile
+++ b/2011/hou/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/konno/Makefile b/2011/konno/Makefile
index 736786a3a..4df1343b3 100644
--- a/2011/konno/Makefile
+++ b/2011/konno/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/richards/Makefile b/2011/richards/Makefile
index 70196371b..d736a7f06 100644
--- a/2011/richards/Makefile
+++ b/2011/richards/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/toledo/Makefile b/2011/toledo/Makefile
index 58441c568..680cb5697 100644
--- a/2011/toledo/Makefile
+++ b/2011/toledo/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/vik/Makefile b/2011/vik/Makefile
index 065deb493..684334b7c 100644
--- a/2011/vik/Makefile
+++ b/2011/vik/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2011/zucker/Makefile b/2011/zucker/Makefile
index abae3cc76..92af3fe3e 100644
--- a/2011/zucker/Makefile
+++ b/2011/zucker/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/blakely/Makefile b/2012/blakely/Makefile
index 2d68be4d1..5213fc021 100644
--- a/2012/blakely/Makefile
+++ b/2012/blakely/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/deckmyn/Makefile b/2012/deckmyn/Makefile
index c140cb2a5..4f0fe530f 100644
--- a/2012/deckmyn/Makefile
+++ b/2012/deckmyn/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/dlowe/Makefile b/2012/dlowe/Makefile
index 847f87a41..3a35b93a6 100644
--- a/2012/dlowe/Makefile
+++ b/2012/dlowe/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/endoh1/Makefile b/2012/endoh1/Makefile
index 028ae8d53..0d236530b 100644
--- a/2012/endoh1/Makefile
+++ b/2012/endoh1/Makefile
@@ -233,7 +233,8 @@ clean:
 	fi
 
 clobber: clean
-	${RM} -f ${TARGET} ${ALT_TARGET} ${ALT_TARGET}2 ${PROG}_color.alt ${PROG}.alt2
+	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM ${ALT_TARGET}2 ${PROG}_color.alt ${PROG}.alt2
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/endoh2/Makefile b/2012/endoh2/Makefile
index 7d774874d..81890e4af 100644
--- a/2012/endoh2/Makefile
+++ b/2012/endoh2/Makefile
@@ -361,6 +361,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${ALT_C}
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2012/grothe/Makefile b/2012/grothe/Makefile
index 39419ed27..3e6a0de03 100644
--- a/2012/grothe/Makefile
+++ b/2012/grothe/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/hamano/Makefile b/2012/hamano/Makefile
index 044769c03..ec34f19a1 100644
--- a/2012/hamano/Makefile
+++ b/2012/hamano/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/hou/Makefile b/2012/hou/Makefile
index f1c9a424b..24d1dfb38 100644
--- a/2012/hou/Makefile
+++ b/2012/hou/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f remarks.htm
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2012/kang/Makefile b/2012/kang/Makefile
index a06060cc3..baac862a0 100644
--- a/2012/kang/Makefile
+++ b/2012/kang/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/konno/Makefile b/2012/konno/Makefile
index 88d4630a4..6144d8bc6 100644
--- a/2012/konno/Makefile
+++ b/2012/konno/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/omoikane/Makefile b/2012/omoikane/Makefile
index 3829a6cc7..9fcdda167 100644
--- a/2012/omoikane/Makefile
+++ b/2012/omoikane/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f output.c key.c data.c regenerated.bin
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2012/tromp/Makefile b/2012/tromp/Makefile
index e5a43c546..e8d971b1d 100644
--- a/2012/tromp/Makefile
+++ b/2012/tromp/Makefile
@@ -214,6 +214,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2012/vik/Makefile b/2012/vik/Makefile
index 878b35f4b..0454b1343 100644
--- a/2012/vik/Makefile
+++ b/2012/vik/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f encodedimg.png restored.png chocolate-in-ioccc.png ioccc-in-chocolate.png
 	${RM} -f restored-chocolate.png restored-ioccc.png
 	@-if [ -e sandwich ]; then \
diff --git a/2012/zeitak/Makefile b/2012/zeitak/Makefile
index 05f9d3081..801122a67 100644
--- a/2012/zeitak/Makefile
+++ b/2012/zeitak/Makefile
@@ -212,6 +212,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/birken/Makefile b/2013/birken/Makefile
index f542b431e..1f6f6e1d5 100644
--- a/2013/birken/Makefile
+++ b/2013/birken/Makefile
@@ -210,6 +210,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/cable1/Makefile b/2013/cable1/Makefile
index c88c501b8..26eed7703 100644
--- a/2013/cable1/Makefile
+++ b/2013/cable1/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/cable2/Makefile b/2013/cable2/Makefile
index 814a9c886..15f6a57bb 100644
--- a/2013/cable2/Makefile
+++ b/2013/cable2/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/cable3/Makefile b/2013/cable3/Makefile
index b989b8098..23d7c9d94 100644
--- a/2013/cable3/Makefile
+++ b/2013/cable3/Makefile
@@ -215,6 +215,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/dlowe/Makefile b/2013/dlowe/Makefile
index 828040732..62ef39a2a 100644
--- a/2013/dlowe/Makefile
+++ b/2013/dlowe/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/endoh1/Makefile b/2013/endoh1/Makefile
index 685f2d3d1..f6a78fd96 100644
--- a/2013/endoh1/Makefile
+++ b/2013/endoh1/Makefile
@@ -216,6 +216,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/endoh2/Makefile b/2013/endoh2/Makefile
index 11e2e2983..5cbb5b327 100644
--- a/2013/endoh2/Makefile
+++ b/2013/endoh2/Makefile
@@ -243,6 +243,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f jpeg.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2013/endoh3/Makefile b/2013/endoh3/Makefile
index 580cf55b7..2063f3cfd 100644
--- a/2013/endoh3/Makefile
+++ b/2013/endoh3/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/endoh4/Makefile b/2013/endoh4/Makefile
index 7f23a40f0..9f50bb9a0 100644
--- a/2013/endoh4/Makefile
+++ b/2013/endoh4/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/hou/Makefile b/2013/hou/Makefile
index 800af39f0..d521c2bcd 100644
--- a/2013/hou/Makefile
+++ b/2013/hou/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/mills/Makefile b/2013/mills/Makefile
index 2b4834d8a..355210d2b 100644
--- a/2013/mills/Makefile
+++ b/2013/mills/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/misaka/Makefile b/2013/misaka/Makefile
index 6db8f0cf9..edcae62ec 100644
--- a/2013/misaka/Makefile
+++ b/2013/misaka/Makefile
@@ -277,6 +277,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f misaka2.c misaka3.c misaka4.c misaka5.c
 	${RM} -f misaka6.c misaka7.c misaka8.c misaka9.c
 	@-if [ -e sandwich ]; then \
diff --git a/2013/morgan1/Makefile b/2013/morgan1/Makefile
index 05f8c3446..f67521ac1 100644
--- a/2013/morgan1/Makefile
+++ b/2013/morgan1/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/morgan2/Makefile b/2013/morgan2/Makefile
index 4d4638d08..c1fc14ee7 100644
--- a/2013/morgan2/Makefile
+++ b/2013/morgan2/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2013/robison/Makefile b/2013/robison/Makefile
index 15a024af9..f3b4d867c 100644
--- a/2013/robison/Makefile
+++ b/2013/robison/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/birken/Makefile b/2014/birken/Makefile
index ce348e5ab..10d477bbd 100644
--- a/2014/birken/Makefile
+++ b/2014/birken/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/deak/Makefile b/2014/deak/Makefile
index 88b97be21..b3a68b57e 100644
--- a/2014/deak/Makefile
+++ b/2014/deak/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/endoh1/Makefile b/2014/endoh1/Makefile
index 802f66d56..80d93a56c 100644
--- a/2014/endoh1/Makefile
+++ b/2014/endoh1/Makefile
@@ -221,6 +221,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f main.c treacle.c
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2014/endoh2/Makefile b/2014/endoh2/Makefile
index 7280a540d..d91982741 100644
--- a/2014/endoh2/Makefile
+++ b/2014/endoh2/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/maffiodo1/Makefile b/2014/maffiodo1/Makefile
index 706d6abe4..2602e021c 100644
--- a/2014/maffiodo1/Makefile
+++ b/2014/maffiodo1/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/maffiodo2/Makefile b/2014/maffiodo2/Makefile
index 1e218c3ed..737778cfd 100644
--- a/2014/maffiodo2/Makefile
+++ b/2014/maffiodo2/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/morgan/Makefile b/2014/morgan/Makefile
index 2a8202fbc..340f2820b 100644
--- a/2014/morgan/Makefile
+++ b/2014/morgan/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f morgan
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2014/sinon/Makefile b/2014/sinon/Makefile
index cf367c229..f621b9ce4 100644
--- a/2014/sinon/Makefile
+++ b/2014/sinon/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/skeggs/Makefile b/2014/skeggs/Makefile
index d10ae2606..07928051c 100644
--- a/2014/skeggs/Makefile
+++ b/2014/skeggs/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2014/vik/Makefile b/2014/vik/Makefile
index 84754bdbf..269013a29 100644
--- a/2014/vik/Makefile
+++ b/2014/vik/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f audio_file.raw prog.raw
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2014/wiedijk/Makefile b/2014/wiedijk/Makefile
index c95e79520..13641dd72 100644
--- a/2014/wiedijk/Makefile
+++ b/2014/wiedijk/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/burton/Makefile b/2015/burton/Makefile
index 16bba7a5f..80be53abc 100644
--- a/2015/burton/Makefile
+++ b/2015/burton/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/dogon/Makefile b/2015/dogon/Makefile
index 672ccf621..7bd802af6 100644
--- a/2015/dogon/Makefile
+++ b/2015/dogon/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/duble/Makefile b/2015/duble/Makefile
index 66f5635b2..9f0ab0d18 100644
--- a/2015/duble/Makefile
+++ b/2015/duble/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/endoh1/Makefile b/2015/endoh1/Makefile
index 2a3863024..e487e3980 100644
--- a/2015/endoh1/Makefile
+++ b/2015/endoh1/Makefile
@@ -268,6 +268,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/endoh2/Makefile b/2015/endoh2/Makefile
index 9d2cc4256..7ffdeaf4e 100644
--- a/2015/endoh2/Makefile
+++ b/2015/endoh2/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/endoh3/Makefile b/2015/endoh3/Makefile
index 10714dac1..26609e3a6 100644
--- a/2015/endoh3/Makefile
+++ b/2015/endoh3/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/endoh4/Makefile b/2015/endoh4/Makefile
index e18a3cece..a64fca11a 100644
--- a/2015/endoh4/Makefile
+++ b/2015/endoh4/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/hou/Makefile b/2015/hou/Makefile
index 104439254..e602a77f5 100644
--- a/2015/hou/Makefile
+++ b/2015/hou/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f prebuild
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2015/howe/Makefile b/2015/howe/Makefile
index 7843ff7ae..6693bd75a 100644
--- a/2015/howe/Makefile
+++ b/2015/howe/Makefile
@@ -212,6 +212,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f curds.tmp nuked.tmp war-and-peace.txt whey.tmp makeholes
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2015/mills1/Makefile b/2015/mills1/Makefile
index 26dd58849..438ff39c0 100644
--- a/2015/mills1/Makefile
+++ b/2015/mills1/Makefile
@@ -364,6 +364,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/mills2/Makefile b/2015/mills2/Makefile
index 3bad88864..75e088574 100644
--- a/2015/mills2/Makefile
+++ b/2015/mills2/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ioccc.Z test1 test1.Z test2 test2.Z
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2015/muth/Makefile b/2015/muth/Makefile
index a9c2253b1..13c049d2b 100644
--- a/2015/muth/Makefile
+++ b/2015/muth/Makefile
@@ -219,6 +219,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/schweikhardt/Makefile b/2015/schweikhardt/Makefile
index b87ebb61e..49477cc25 100644
--- a/2015/schweikhardt/Makefile
+++ b/2015/schweikhardt/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2015/yang/Makefile b/2015/yang/Makefile
index 46c861691..145d29eca 100644
--- a/2015/yang/Makefile
+++ b/2015/yang/Makefile
@@ -230,6 +230,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/algmyr/Makefile b/2018/algmyr/Makefile
index b9175073e..c43bad03e 100644
--- a/2018/algmyr/Makefile
+++ b/2018/algmyr/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f out.raw
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/anderson/Makefile b/2018/anderson/Makefile
index 6c2b37a86..c0d25cba8 100644
--- a/2018/anderson/Makefile
+++ b/2018/anderson/Makefile
@@ -205,6 +205,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/bellard/Makefile b/2018/bellard/Makefile
index 6bad1df66..725a85d8a 100644
--- a/2018/bellard/Makefile
+++ b/2018/bellard/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f lena.ppm small.jpg
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/burton1/Makefile b/2018/burton1/Makefile
index 311484965..29549b2fe 100644
--- a/2018/burton1/Makefile
+++ b/2018/burton1/Makefile
@@ -206,6 +206,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/burton2/Makefile b/2018/burton2/Makefile
index f84f694c0..ce697b39e 100644
--- a/2018/burton2/Makefile
+++ b/2018/burton2/Makefile
@@ -238,6 +238,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f fixed_iocccsize tac keywords iocccsize manpage
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/ciura/Makefile b/2018/ciura/Makefile
index 5a941d70e..2f03dcd3f 100644
--- a/2018/ciura/Makefile
+++ b/2018/ciura/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/endoh1/Makefile b/2018/endoh1/Makefile
index 67252e169..f4c9c314a 100644
--- a/2018/endoh1/Makefile
+++ b/2018/endoh1/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f output.gif golem.gif smily.gif invisible.gif
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/endoh2/Makefile b/2018/endoh2/Makefile
index ed19761f2..38cb70c75 100644
--- a/2018/endoh2/Makefile
+++ b/2018/endoh2/Makefile
@@ -225,6 +225,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}_next.c ${PROG}_next
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/ferguson/Makefile b/2018/ferguson/Makefile
index 6daf8fbde..f1671da73 100644
--- a/2018/ferguson/Makefile
+++ b/2018/ferguson/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/giles/Makefile b/2018/giles/Makefile
index cd4d6389d..593ea65c9 100644
--- a/2018/giles/Makefile
+++ b/2018/giles/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/hou/Makefile b/2018/hou/Makefile
index 245030328..aca63fbe1 100644
--- a/2018/hou/Makefile
+++ b/2018/hou/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ioccc.html ioccc.json output.html
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/mills/Makefile b/2018/mills/Makefile
index 84fa291a8..1d3085fa8 100644
--- a/2018/mills/Makefile
+++ b/2018/mills/Makefile
@@ -259,6 +259,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f builddisk.bsd builddisk.v6 v0 rk05.bsd.fs rk05.v6.fs
 	${RM} -f empty.fs.bz2 empty.fs v6.fs v6.img.bz2 v0.img v6.tape
 	@-if [ -e sandwich ]; then \
diff --git a/2018/poikola/Makefile b/2018/poikola/Makefile
index 875164357..c8617c58d 100644
--- a/2018/poikola/Makefile
+++ b/2018/poikola/Makefile
@@ -209,6 +209,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f poikola.aux poikola.log poikola.pdf poikola.synctex.gz
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2018/vokes/Makefile b/2018/vokes/Makefile
index 01edc1dcc..ca439ae78 100644
--- a/2018/vokes/Makefile
+++ b/2018/vokes/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2018/yang/Makefile b/2018/yang/Makefile
index 66d9da5de..59229f44d 100644
--- a/2018/yang/Makefile
+++ b/2018/yang/Makefile
@@ -322,6 +322,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f generated*.c msg*
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2019/adamovsky/Makefile b/2019/adamovsky/Makefile
index 708fc41c9..67384e27b 100644
--- a/2019/adamovsky/Makefile
+++ b/2019/adamovsky/Makefile
@@ -221,6 +221,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/burton/Makefile b/2019/burton/Makefile
index 07ee102d7..be278696f 100644
--- a/2019/burton/Makefile
+++ b/2019/burton/Makefile
@@ -216,6 +216,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/ciura/Makefile b/2019/ciura/Makefile
index fce5bbc49..f8694d79f 100644
--- a/2019/ciura/Makefile
+++ b/2019/ciura/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/diels-grabsch1/Makefile b/2019/diels-grabsch1/Makefile
index 4afbd8f9a..6a653fe6e 100644
--- a/2019/diels-grabsch1/Makefile
+++ b/2019/diels-grabsch1/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/diels-grabsch2/Makefile b/2019/diels-grabsch2/Makefile
index 0eabe31d2..fa463d895 100644
--- a/2019/diels-grabsch2/Makefile
+++ b/2019/diels-grabsch2/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/dogon/Makefile b/2019/dogon/Makefile
index 28756d34d..dfeb24713 100644
--- a/2019/dogon/Makefile
+++ b/2019/dogon/Makefile
@@ -213,6 +213,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/duble/Makefile b/2019/duble/Makefile
index 6d836d5e8..af9103c35 100644
--- a/2019/duble/Makefile
+++ b/2019/duble/Makefile
@@ -284,6 +284,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f Darwin Darwin.alt FreeBSD FreeBSD.alt Linux Linux.alt
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2019/endoh/Makefile b/2019/endoh/Makefile
index 5288293d5..dd5a64307 100644
--- a/2019/endoh/Makefile
+++ b/2019/endoh/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -rf ${TARGET}.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2019/giles/Makefile b/2019/giles/Makefile
index 66ef2293d..6bf822080 100644
--- a/2019/giles/Makefile
+++ b/2019/giles/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2019/karns/Makefile b/2019/karns/Makefile
index 675359708..a2dee8f07 100644
--- a/2019/karns/Makefile
+++ b/2019/karns/Makefile
@@ -215,6 +215,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f tbfs
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2019/lynn/Makefile b/2019/lynn/Makefile
index ef7c8df1e..857adaa29 100644
--- a/2019/lynn/Makefile
+++ b/2019/lynn/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f fib.c fib
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2019/mills/Makefile b/2019/mills/Makefile
index 60d82baa7..f2adc59e4 100644
--- a/2019/mills/Makefile
+++ b/2019/mills/Makefile
@@ -387,6 +387,7 @@ cpclean:
 
 clobber: clean cpclean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${INPUTS}
 	${RM} -f ${OUTPUTS}
 	@-if [ -e sandwich ]; then \
diff --git a/2019/poikola/Makefile b/2019/poikola/Makefile
index 6b5c17060..dcd5214f3 100644
--- a/2019/poikola/Makefile
+++ b/2019/poikola/Makefile
@@ -208,6 +208,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f poikola.aux poikola.log poikola.synctex.gz
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2019/yang/Makefile b/2019/yang/Makefile
index 2e3fd9abe..861d67aa4 100644
--- a/2019/yang/Makefile
+++ b/2019/yang/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/burton/Makefile b/2020/burton/Makefile
index 27135d73e..fdead2c93 100644
--- a/2020/burton/Makefile
+++ b/2020/burton/Makefile
@@ -225,6 +225,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f ${PROG}_be ${PROG}_le
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2020/carlini/Makefile b/2020/carlini/Makefile
index 9bcf04978..0bc4d71d4 100644
--- a/2020/carlini/Makefile
+++ b/2020/carlini/Makefile
@@ -201,6 +201,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/endoh1/Makefile b/2020/endoh1/Makefile
index 9abc3b584..c43edeaad 100644
--- a/2020/endoh1/Makefile
+++ b/2020/endoh1/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/endoh2/Makefile b/2020/endoh2/Makefile
index f81860807..622637060 100644
--- a/2020/endoh2/Makefile
+++ b/2020/endoh2/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/endoh3/Makefile b/2020/endoh3/Makefile
index 86ed4254f..54c90e0ea 100644
--- a/2020/endoh3/Makefile
+++ b/2020/endoh3/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	${RM} -f clock.c clock
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
diff --git a/2020/ferguson1/Makefile b/2020/ferguson1/Makefile
index 79fa6e33c..47d02aa77 100644
--- a/2020/ferguson1/Makefile
+++ b/2020/ferguson1/Makefile
@@ -235,6 +235,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/ferguson2/Makefile b/2020/ferguson2/Makefile
index f49044567..5e03020b6 100644
--- a/2020/ferguson2/Makefile
+++ b/2020/ferguson2/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/giles/Makefile b/2020/giles/Makefile
index a51a30afb..000fdd083 100644
--- a/2020/giles/Makefile
+++ b/2020/giles/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/kurdyukov1/Makefile b/2020/kurdyukov1/Makefile
index 71c71070a..eafc6d6d6 100644
--- a/2020/kurdyukov1/Makefile
+++ b/2020/kurdyukov1/Makefile
@@ -204,6 +204,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/kurdyukov2/Makefile b/2020/kurdyukov2/Makefile
index 60b2ed77e..ae535d826 100644
--- a/2020/kurdyukov2/Makefile
+++ b/2020/kurdyukov2/Makefile
@@ -211,6 +211,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/kurdyukov3/Makefile b/2020/kurdyukov3/Makefile
index 28c77f5bd..b129bc5d7 100644
--- a/2020/kurdyukov3/Makefile
+++ b/2020/kurdyukov3/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/kurdyukov4/Makefile b/2020/kurdyukov4/Makefile
index 68884f6b9..7e233dc23 100644
--- a/2020/kurdyukov4/Makefile
+++ b/2020/kurdyukov4/Makefile
@@ -207,6 +207,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/otterness/Makefile b/2020/otterness/Makefile
index d514901ce..0431bbbad 100644
--- a/2020/otterness/Makefile
+++ b/2020/otterness/Makefile
@@ -202,6 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/tsoj/Makefile b/2020/tsoj/Makefile
index 89e3cd881..ede4d4b83 100644
--- a/2020/tsoj/Makefile
+++ b/2020/tsoj/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \
diff --git a/2020/yang/Makefile b/2020/yang/Makefile
index d14dc165d..b35685fb8 100644
--- a/2020/yang/Makefile
+++ b/2020/yang/Makefile
@@ -203,6 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf *.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \