+if [ -z "$CFLAGS" ]; then
+ #### Only use these flags with gcc.
+ if cc -dM -E - </dev/null 2>&1 | egrep __GNUC__ >/dev/null; then
+ #### configure will supply -g -O2 with gcc, but only if CFLAGS
+ #### isn't defined.
+ CFLAGS='-g -O2 -ansi -pedantic'
+ fi
+fi
+