-# <rdenis (at) simphalempin (dot) com>.
+# Copyright © 2006 Rémi Denis-Courmont
# This file (flags.m4) is free software; unlimited permission to
# copy and/or distribute it , with or without modifications, as long
# as this notice is preserved.
RDC_PROG_CC_FLAGS_IFELSE([$1], [CFLAGS="${CFLAGS} $1"])
])
-AC_DEFUN([RDC_PROG_CC_WERRORFLAGS],
+AC_DEFUN([RDC_PROG_CC_WFLAGS],
[ for a in $1; do
- RDC_PROG_CC_FLAGS_IFELSE([-Werror=$a], [CFLAGS_WERROR="${CFLAGS_WERROR} -Werror=${a}"])
+ RDC_PROG_CC_FLAGS([-W$a])
done
])
-AC_DEFUN([RDC_PROG_CC_WFLAGS],
+AC_DEFUN([RDC_PROG_CXX_FLAGS_IFELSE],
+[AC_LANG_ASSERT(C++)
+ CXXFLAGS_save="${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 $1; do
- RDC_PROG_CC_FLAGS([-W$a])
+ RDC_PROG_CXX_FLAGS([-W$a])
done
])