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| author | gdr <gdr@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-01-29 16:31:08 +0000 |
|---|---|---|
| committer | gdr <gdr@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-01-29 16:31:08 +0000 |
| commit | ecefb1e540b0829c753f92d3b334acbeb0b00dd1 (patch) | |
| tree | d09fa189cd9bdd885ce98dc20f465c0d86bbf679 /libiberty/configure.ac | |
| parent | cd62e7b6e18cb6fceedbfbefab44151a5e94b483 (diff) | |
| download | gcc-ecefb1e540b0829c753f92d3b334acbeb0b00dd1.tar.gz | |
* configure.ac: Add -Wc++-compat to ac_libibety_warn_cflags
where supported.
* configure: Regenerated.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110375 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libiberty/configure.ac')
| -rw-r--r-- | libiberty/configure.ac | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libiberty/configure.ac b/libiberty/configure.ac index e77bac70b78..a57685a14ec 100644 --- a/libiberty/configure.ac +++ b/libiberty/configure.ac @@ -113,9 +113,25 @@ GCC_NO_EXECUTABLES AC_PROG_CC AC_PROG_CPP_WERROR +# Warn C++ incompatibilities if supported. +AC_CACHE_CHECK( + [whether ${CC} accepts -Wc++-compat], + [ac_cv_prog_cc_w_cxx_compat], + [save_CFLAGS="$CFLAGS" + CFLAGS="-Wc++-compat" + AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])], + [ac_cv_prog_cc_w_cxx_compat=yes], + [ac_cv_prog_cc_w_cxx_compat=no]) + CFLAGS="$save_CFLAGS" + ]) + + if test x$GCC = xyes; then ac_libiberty_warn_cflags='-W -Wall -pedantic -Wwrite-strings -Wstrict-prototypes' fi +if test $ac_cv_prog_cc_w_cxx_compat = yes ; then + ac_libiberty_warn_cflags="${ac_libiberty_warn_cflags} -Wc++-compat" +fi AC_SUBST(ac_libiberty_warn_cflags) AC_PROG_CC_C_O |