CFLAGS_save="${CFLAGS}"
as_ac_var=`echo "ac_cv_prog_cc_flags_$1" | $as_tr_sh`
AC_CACHE_CHECK([if $CC accepts $1], [$as_ac_var], [
- CFLAGS="${CFLAGS} $1"
+ CFLAGS="${CFLAGS} -Werror $1"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
eval "$as_ac_var=yes"
],[
done
])
+AC_DEFUN([RDC_PROG_CXX_FLAGS_IFELSE],
+[AC_LANG_ASSERT(C++)
+ CXXFLAGS_save="${CXXFLAGS}"
+ as_ac_var=`echo "ac_cv_prog_cxx_flags_$1" | $as_tr_sh`
+ AC_CACHE_CHECK([if $CXX accepts $1], [$as_ac_var], [
+ CXXFLAGS="${CXXFLAGS} $1"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
+ eval "$as_ac_var=yes"
+ ],[
+ eval "$as_ac_var=no"
+ ])
+ ])
+
+ ac_res=`eval echo '${'$as_ac_var'}'`
+ CXXFLAGS="${CXXFLAGS_save}"
+ AS_IF([test "${ac_res}" != "no"], [$2], [$3])
+])
+
+AC_DEFUN([RDC_PROG_CXX_FLAGS],
+[AC_LANG_ASSERT(C++)
+ RDC_PROG_CXX_FLAGS_IFELSE([$1], [CXXFLAGS="${CXXFLAGS} $1"])
+])
+
+AC_DEFUN([RDC_PROG_CXX_WFLAGS],
+[ for a in $1; do
+ RDC_PROG_CXX_FLAGS([-W$a])
+ done
+])
+
AC_DEFUN([RDC_PROG_LINK_FLAGS_IFELSE],
[AC_LANG_ASSERT(C)
LDFLAGS_save="${LDFLAGS}"