X-Git-Url: http://git.marmaro.de/?a=blobdiff_plain;f=configure.ac;h=4fba67e680cdf0c013cb511541d2e17507b39fa3;hb=596904cf07f08b3c28898a4c397eb1caf9aa9873;hp=49221ff373d4fe840d9d07c8937bf16c08280c67;hpb=acf0c6e13383bef83c288fd44dcf885b0ac69ebe;p=mmh

diff --git a/configure.ac b/configure.ac
index 49221ff..4fba67e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -168,6 +168,19 @@ if test "$nmh_cv_has_unusedmacros" = 'yes'; then
 fi
 AC_SUBST(DISABLE_UNUSED_MACROS_WARNING)dnl
 
+AC_CACHE_CHECK([whether compiler supports -Wno-sign-compare],
+  [nmh_cv_has_nosigncompare],
+  [nmh_saved_cppflags="$CPPFLAGS"
+   CPPFLAGS="$CPPFLAGS -Wno-sign-compare"
+   AC_TRY_COMPILE([],[],nmh_cv_has_nosigncompare=yes,
+                  nmh_cv_has_nosigncompare=no)
+   CPPFLAGS="$nmh_saved_cppflags"])
+
+if test "$nmh_cv_has_nosigncompare" = 'yes'; then
+  DISABLE_SIGN_COMPARE_WARNING=-Wno-sign-compare
+fi
+AC_SUBST(DISABLE_SIGN_COMPARE_WARNING)dnl
+
 AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
 [nmh_saved_cflags="$CFLAGS"
  CFLAGS="$CFLAGS -Wextra -Wno-clobbered"