diff --git a/2005/giljade/giljade.c b/2005/giljade/giljade.c
index 5bf491432..d88b8366b 100644
--- a/2005/giljade/giljade.c
+++ b/2005/giljade/giljade.c
@@ -18,7 +18,7 @@
 (B[h]=N-B,N= N+6);}main(Z,Y )char**Y;{char*U=Z ;
 int**w=Y; ;;F(_=A=D+6666,A[fread(A,1,3333,fopen
 (__FILE__, "r"))]=0;*++ _;h||(*_=V))
-*_-59|_[1]-* _||(h&&(*_=+ 35),h---2||(_[9]=V));;F(_
+*_-59|_[1]-* _||(h&&(*_= +35),h---2||(_[9]=V));;F(_
 =A;*_;_++)10 -*_&&*_-V&&( *_-92)&&(k[q]=isalnum(l[q
 ]=*_),q++);M =47;*(E=N-6) =64;E[1]=289;E[2]=270336;
 F(E[3]=32782 ;E<N;E=E+6){ H()o(1048560,<<,>>,4,>>4,
@@ -46,4 +46,4 @@ e==1){F(r=A= l+d;35-*A;++ A)*A-M&&*A-T ||U-1&&(*A=V
 13499);}t=d+ 9;_[-1]=l[++ d];}a-1|+j-2 ||(R-Q<3?(*(
 Q<R?R-1:R)=* Q=*R=59):(*R =M,R[-1]=T), a=2);}}j?(*_
 ++=j-2?V:10, R):(R=_-1);} }R[-1]=T;*R= M;*_++=10;F(
-R=D;putchar( *R)&&_>++R;) ;}}};}
+R =D ; putchar ( * R) && _ > ++R ; ) ; } } }  ;   }
diff --git a/2005/giljade/test.sh b/2005/giljade/test.sh
index 7611ef025..22220d3fc 100755
--- a/2005/giljade/test.sh
+++ b/2005/giljade/test.sh
@@ -12,23 +12,54 @@ fi
 
 make CC="$CC" all >/dev/null || exit 1
 
+# clear screen after compilation so that only the test is shown
+clear
+
+# binary is giljade
 GILJADE="giljade"
+
+# assume we will succeed
 EXIT_CODE=0
 
+# delete temporary files first to make sure that they're clean
 rm -f out out.count
 
+# redirect stdout to 'out' so that we can run the test suite of giljade
 ./"$GILJADE" > out
-./"$GILJADE" out | tee out.count | grep '^Line'
+# here we want to show only the lines matching the regexp '^Line' but write
+# everything to out.count for checking (after running it all) for errors and how
+# many versions were found.
+./"$GILJADE" out 2>&1 | tee out.count | grep '^Line'
+
+# there should be 180 lines matching the regexp '^Line'.
 COUNT="$(grep -c '^Line' out.count)"
 
 if [[ "$COUNT" != 180 ]]; then
-    echo "FAIL: expected 180 versions, got $COUNT" 1>&2
+    # if we failed to get exactly 180 versions there is a problem
+    echo "FAIL: Expected 180 versions, got $COUNT" 1>&2
     EXIT_CODE=1
+elif [[ "$(grep -c '[^-]error' out.count)" -ne 0 ]]; then
+    # we have to check for '[^-]error' because the CFLAGS contain '-Wno-error'
+    # which would be a false positive.
+    echo "FAIL: Error compiling one or more versions!" 1>&2
+    echo "Try the following command to find out what problems occurred:" 1>&2
+    echo 1>&2
+    echo "	grep -C5 -E '[^-]error' out.count" 1>&2
+    echo 1>&2
+    echo "and feel free to report or fix it and make a GitHub pull request." 1>&2
+    EXIT_CODE=2
 else
-    echo "Found all 180 versions!" 1>&2
+    # all good: every version could be compiled
+    echo "Found and compiled all 180 versions!" 1>&2
+    # set EXIT_CODE to 0 even though it should be already
+    EXIT_CODE=0
 fi
 
-rm -f out out.count
+# delete temporary files but only if no failure
 
+if [[ "$EXIT_CODE" = 0 ]]; then
+    rm -f out out.count
+fi
+
+# exit :-)
 exit "$EXIT_CODE"
-