gentoo-overlay/net-mail/dovecot/files/dovecot-unwind-generic.patch

Bug 728336
--- a/m4/want_unwind.m4
+++ b/m4/want_unwind.m4
@@ -4,9 +4,9 @@
     PKG_CHECK_EXISTS([libunwind], [
       PKG_CHECK_MODULES([LIBUNWIND], [libunwind],[
         dnl see if there is target-specific library
-        AC_CHECK_LIB([unwind-${build_cpu}], [_U${build_cpu}_init_local],[
+        PKG_CHECK_MODULES([LIBUNWIND_GENERIC], [libunwind-generic],[
           have_libunwind=yes
-          LIBUNWIND_LIBS="$LIBUNWIND_LIBS -lunwind-${build_cpu}"
+          LIBUNWIND_LIBS="$LIBUNWIND_LIBS $LIBUNWIND_GENERIC_LIBS"
           AC_DEFINE([HAVE_LIBUNWIND],,[Define this if you have libunwind])
         ],[
            have_libunwind=no