Don't error out if the message body is empty.

[nmh] / configure.ac

diff --git a/configure.ac b/configure.ac
index 434efaac3767d96c784ae034bd06974ab8eff79b..4f7229a35a5ec7580123e2d14a707180f7192650 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -167,18 +167,17 @@ AC_SUBST([POSTLINK])
 dnl -----------------
 dnl CUSTOMIZE LDFLAGS
 dnl -----------------
 dnl -----------------
 dnl CUSTOMIZE LDFLAGS
 dnl -----------------

-if test "$GCC" = yes; then
+AS_IF([test "$GCC" = yes  &&  `${CC} --version 2>&1 | grep clang >/dev/null`],

   dnl Disable clang complaint about unused -ansi when linking.
   dnl Disable clang complaint about unused -ansi when linking.

-  AC_CACHE_CHECK([whether linker supports -Qunused-arguments],
-                 [nmh_cv_has_q_unused_arguments],
-                 [nmh_saved_ldflags="$LDFLAGS"
-                  LDFLAGS="$LDFLAGS -Qunused-arguments"
-                  AC_TRY_LINK([],[],nmh_cv_has_q_unused_arguments=yes,
-                                    nmh_cv_has_q_unused_arguments=no)
-                  LDFLAGS="$nmh_saved_ldflags"])
-  test "$nmh_cv_has_q_unused_arguments" = "yes"  &&  \
-    LDFLAGS="${LDFLAGS:+$LDFLAGS }-Qunused-arguments"
-fi
+  [AC_CACHE_CHECK([whether linker supports -Qunused-arguments],
+                  [nmh_cv_has_q_unused_arguments],
+                  [nmh_saved_ldflags="$LDFLAGS"
+                   LDFLAGS="$LDFLAGS -Qunused-arguments"
+                   AC_TRY_LINK([],[],nmh_cv_has_q_unused_arguments=yes,
+                                     nmh_cv_has_q_unused_arguments=no)
+                   LDFLAGS="$nmh_saved_ldflags"])])
+test "$nmh_cv_has_q_unused_arguments" = "yes"  &&  \
+  LDFLAGS="${LDFLAGS:+$LDFLAGS }-Qunused-arguments"

 
 dnl This hack turns off assertions by default, assuming
 dnl that configure still uses this shell variable.  Without
 
 dnl This hack turns off assertions by default, assuming
 dnl that configure still uses this shell variable.  Without