-GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wshadow"
+GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+__GNUC__
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "^[0-3]$" >/dev/null 2>&1; then :
+
+else
+ GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wshadow"
+fi
+rm -f conftest*
+
# Check whether --enable-werror was given.
if test "${enable_werror+set}" = set; then :
fi
-# Enable -Wno-format by default when using gcc on mingw
+# Disable -Wformat by default when using gcc on mingw
case "${host}" in
*-*-mingw32*)
if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
case "$ac_file" in */Makefile.in)
# Adjust a relative srcdir.
ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'`
- ac_dir_suffix="/`echo "$ac_dir"|sed 's%^\./%%'`"
+ ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'`
ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'`
# In autoconf-2.13 it is called $ac_given_srcdir.
# In autoconf-2.50 it is called $srcdir.