Fix for Solaris.
This should be investigated for sending upstream.
--- a/mail/installer/Makefile.in Fri Apr 12 10:02:00 2013
+++ b/mail/installer/Makefile.in Fri Apr 12 10:02:20 2013
@@ -16,7 +16,7 @@
MOZ_PKG_MANIFEST_P = $(srcdir)/package-manifest.in
# Some files have been already bundled with xulrunner
ifndef SYSTEM_LIBXUL
-MOZ_PKG_FATAL_WARNINGS = 1
+# MOZ_PKG_FATAL_WARNINGS = 1
endif
MOZ_NONLOCALIZED_PKG_LIST = \