diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/aclocal.m4 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/aclocal.m4 b/src/aclocal.m4 index 8cdbc4788..f29446a1f 100644 --- a/src/aclocal.m4 +++ b/src/aclocal.m4 @@ -625,6 +625,19 @@ if test "$GCC" = yes ; then else CFLAGS="$CFLAGS -pedantic" fi + AC_CACHE_CHECK([if GCC supports -Wno-format-zero-length], + krb5_cv_gcc_Wno_format_zero_length, + [# first try without, then with + AC_TRY_COMPILE([], 1;, + [old_cflags="$CFLAGS" + CFLAGS="$CFLAGS -Wno-format-zero-length" + AC_TRY_COMPILE([], 1;, krb5_cv_gcc_Wno_format_zero_length=yes, + krb5_cv_gcc_Wno_format_zero_length=no) + CFLAGS="$old_cflags"], + [AC_MSG_ERROR(compiling simple test program with $CFLAGS failed)])]) + if test "$krb5_cv_gcc_Wno_format_zero_length" = yes; then + CFLAGS="$CFLAGS -Wno-format-zero-length" + fi fi if test "`uname -s`" = Darwin ; then # Someday this should be a feature test. |