diff --git a/2024/burton/try.sh b/2024/burton/try.sh
index 8bdb99321..ecf8de5cf 100755
--- a/2024/burton/try.sh
+++ b/2024/burton/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/cable1/try.sh b/2024/cable1/try.sh
index 3dca4d0ec..6cb1c3383 100755
--- a/2024/cable1/try.sh
+++ b/2024/cable1/try.sh
@@ -25,7 +25,8 @@ fi
 #
 read -r -n 1 -p "Press any key to when ready: "
 echo 1>&2
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # select a game
 #
diff --git a/2024/cable2/try.sh b/2024/cable2/try.sh
index c128f948f..460792b19 100755
--- a/2024/cable2/try.sh
+++ b/2024/cable2/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/carlini/try.sh b/2024/carlini/try.sh
index 2b48dcfbf..836c1781c 100755
--- a/2024/carlini/try.sh
+++ b/2024/carlini/try.sh
@@ -11,7 +11,8 @@ fi
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/codemeow/try.sh b/2024/codemeow/try.sh
index 0c514451e..bc3384705 100755
--- a/2024/codemeow/try.sh
+++ b/2024/codemeow/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/endoh1/try.sh b/2024/endoh1/try.sh
index 9946c08ce..34cfa5a84 100755
--- a/2024/endoh1/try.sh
+++ b/2024/endoh1/try.sh
@@ -12,7 +12,8 @@ fi
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 
 # clear the screen
diff --git a/2024/endoh2/try.sh b/2024/endoh2/try.sh
index 669609fae..4955ef10e 100755
--- a/2024/endoh2/try.sh
+++ b/2024/endoh2/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all tipple >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all tipple >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/ferguson1/try.sh b/2024/ferguson1/try.sh
index 4f659fb09..9b46c763c 100755
--- a/2024/ferguson1/try.sh
+++ b/2024/ferguson1/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/ferguson2/try.sh b/2024/ferguson2/try.sh
index 228cc8bf5..e920e6f04 100755
--- a/2024/ferguson2/try.sh
+++ b/2024/ferguson2/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program and the alt program have been built
 #
-make CC="$CC" everything >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" everything >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/howe/try.sh b/2024/howe/try.sh
index 7748aa188..cce9b6fef 100755
--- a/2024/howe/try.sh
+++ b/2024/howe/try.sh
@@ -9,7 +9,7 @@ if [[ -z "$CC" ]]; then
     CC="cc"
 fi
 
-MAKE=$(which gmake)
+MAKE=$(command -v gmake)
 ${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 read -r -n 1 -p "Press any key to form foo: "
diff --git a/2024/kramer/try.sh b/2024/kramer/try.sh
index ad467175f..2c67a2f9a 100755
--- a/2024/kramer/try.sh
+++ b/2024/kramer/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program and the alt program have been built
 #
-make CC="$CC" everything >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" everything >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/kurdyukov1/try.sh b/2024/kurdyukov1/try.sh
index 7aefd4dd4..f0efa497e 100755
--- a/2024/kurdyukov1/try.sh
+++ b/2024/kurdyukov1/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/kurdyukov2/try.sh b/2024/kurdyukov2/try.sh
index f1e348c2f..e3ec8cf0e 100755
--- a/2024/kurdyukov2/try.sh
+++ b/2024/kurdyukov2/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/kurdyukov3/try.alt.sh b/2024/kurdyukov3/try.alt.sh
index d94c75c1a..7dbb3bf3c 100755
--- a/2024/kurdyukov3/try.alt.sh
+++ b/2024/kurdyukov3/try.alt.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" alt >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" alt >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/kurdyukov3/try.sh b/2024/kurdyukov3/try.sh
index 709506a10..93e65d77f 100755
--- a/2024/kurdyukov3/try.sh
+++ b/2024/kurdyukov3/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/kurdyukov4/try.sh b/2024/kurdyukov4/try.sh
index 90d5b6319..f196862d7 100755
--- a/2024/kurdyukov4/try.sh
+++ b/2024/kurdyukov4/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program and the alt program have been built
 #
-make CC="$CC" everything >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" everything >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/macke/try.sh b/2024/macke/try.sh
index 19320fb81..92cf806dc 100755
--- a/2024/macke/try.sh
+++ b/2024/macke/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/maffiodo/try.sh b/2024/maffiodo/try.sh
index cca586133..7c084924f 100755
--- a/2024/maffiodo/try.sh
+++ b/2024/maffiodo/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program and the alt program have been built
 #
-make CC="$CC" everything >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" everything >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/mills/try.alt.sh b/2024/mills/try.alt.sh
index 9c7bb968c..21d80fa04 100755
--- a/2024/mills/try.alt.sh
+++ b/2024/mills/try.alt.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" alt >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" alt >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/mills/try.sh b/2024/mills/try.sh
index f29175689..90ae0b556 100755
--- a/2024/mills/try.sh
+++ b/2024/mills/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/stedolan/try.sh b/2024/stedolan/try.sh
index abbe58bb1..6eee1393a 100755
--- a/2024/stedolan/try.sh
+++ b/2024/stedolan/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/straadt/try.sh b/2024/straadt/try.sh
index 4487bd220..38cbbea5c 100755
--- a/2024/straadt/try.sh
+++ b/2024/straadt/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/tmarrec/try.sh b/2024/tmarrec/try.sh
index 1300ff5eb..6e89e8229 100755
--- a/2024/tmarrec/try.sh
+++ b/2024/tmarrec/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/tompng/try.sh b/2024/tompng/try.sh
index 3cda237c8..f2945f5de 100755
--- a/2024/tompng/try.sh
+++ b/2024/tompng/try.sh
@@ -11,7 +11,8 @@ fi
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #
diff --git a/2024/weaver/try.sh b/2024/weaver/try.sh
index 6ce8b38b7..05af4566e 100755
--- a/2024/weaver/try.sh
+++ b/2024/weaver/try.sh
@@ -9,7 +9,8 @@
 
 # make sure the program has been built
 #
-make CC="$CC" all >/dev/null || exit 1
+MAKE=$(command -v gmake)
+${MAKE:=make} CC="$CC" all >/dev/null || exit 1
 
 # clear the screen
 #