diff options
| author | DJ Delorie <dj@redhat.com> | 2006-01-29 20:07:09 +0000 |
|---|---|---|
| committer | DJ Delorie <dj@redhat.com> | 2006-01-29 20:07:09 +0000 |
| commit | fd7d450d2b237084c67c0d519083cc4abdd25732 (patch) | |
| tree | fe93ae7abf592520723960b400bc7387f46ffc8e /libiberty/configure.ac | |
| parent | 06d3c8c05c996764a2a3aa36a39fc1e808c234fb (diff) | |
| download | gdb-fd7d450d2b237084c67c0d519083cc4abdd25732.zip gdb-fd7d450d2b237084c67c0d519083cc4abdd25732.tar.gz gdb-fd7d450d2b237084c67c0d519083cc4abdd25732.tar.bz2 | |
merge from gcc
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 e77bac7..a57685a 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 |