--- a/configure.in
+++ b/configure.in
@@ -21,7 +21,6 @@
 dnl Checks for programs.
 AC_PROG_CC
 AC_LANG_C
-CFLAGS=" "
 dnl ^^^ set it to non-empty, so AC_PROG_CXX won't include `-g'
 dnl AC_PROG_CXX
 dnl AC_PTS_PROG_CFLAGS(fs, -fsigned-char)
--- a/do.sh
+++ b/do.sh
@@ -35,8 +35,8 @@
 if [ x"$CMD" != x ]; then echo "Executing: $CMD"; fi
 
 if [ "$CMD" = fast ]; then
-  L_CC="$CC -s -O3 -DNDEBUG"
-  L_LD="$LD -s"
+  L_CC="$CC -DNDEBUG"
+  L_LD="$LD"
 elif [ "$CMD" = debug ]; then
   L_CC="$CC $GFLAG"
   L_LD="$LD"
@@ -47,14 +47,14 @@
   L_CC="checkergcc $GFLAG"
   L_LD="checkergcc"
 elif [ "$CMD" = small ]; then
-  L_CC="$CC -Os -DNDEBUG"
-  L_LD="$LD -s"
+  L_CC="$CC -DNDEBUG"
+  L_LD="$LD"
 elif [ "$CMD" = final ]; then
-  L_CC="$CC -O2 -DNDEBUG"
-  L_LD="$LD -s"
+  L_CC="$CC -DNDEBUG"
+  L_LD="$LD"
 elif [ "$CMD" = asserted ]; then
-  L_CC="$CC -O2"
-  L_LD="$LD -s"
+  L_CC="$CC"
+  L_LD="$LD"
 elif [ "$CMD" = clean ]; then
   rm -f *.o core DEADJOE tif22pnm png22pnm
   exit