Added -Wno-sign-compare, if supported, to compile of sbr/dtimep.c.

It's code generated by flex and some versions produce a
signed/unsigned mismatch.

diff --git a/Makefile.am b/Makefile.am
index 56ecdb1..636f221 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -495,7 +495,9 @@ sbr_libmh_a_CPPFLAGS = -I./sbr -DNMHETCDIR='"$(sysconfdir)"' \
                -DDEFAULT_PAGER='"$(pagerpath)"'
 
 sbr_libdtimep_a_SOURCES = sbr/dtimep.l
-sbr_libdtimep_a_CFLAGS = $(sbr_libmh_a_CPPFLAGS) $(DISABLE_UNUSED_MACROS_WARNING)
+sbr_libdtimep_a_CFLAGS = $(sbr_libmh_a_CPPFLAGS) \
+                        $(DISABLE_UNUSED_MACROS_WARNING) \
+                        $(DISABLE_SIGN_COMPARE_WARNING)
 
 mts_libmts_a_SOURCES = mts/smtp/smtp.c
 

diff --git a/configure.ac b/configure.ac
index 49221ff..4fba67e 100644 (file)
--- 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"