libgpg-error: add patch to avoid breakage with gcc 5

Signed-off-by: Stephan Raue <stephan@openelec.tv>

packages/security/libgpg-error/patches/libgpg-error-avoid-breakage-with-gcc-5.patch

@@ -0,0 +1,50 @@
+From 91da4f5dbbc9d93975ef9753652a4e71719f9f27 Mon Sep 17 00:00:00 2001
+From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
+Date: Mon, 16 Mar 2015 13:26:00 -0400
+Subject: [LIBGPG-ERROR PATCH] avoid breakage with gcc 5
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+ * src/Makefile.am: add -P to the C preprocessor when building
+   mkerrcodes.h, to avoid a noisy intermediate pipeline.
+
+--
+
+With gcc 5 without this patch, we see many errors like the following:
+
+gcc -I. -I. -o mkerrcodes ./mkerrcodes.c
+In file included from ./mkerrcodes.c:26:0:
+./mkerrcodes.h:9:5: error: expected expression before ‘,’ token
+   { , "GPG_ERR_E2BIG" },
+     ^
+./mkerrcodes.h:10:5: error: expected expression before ‘,’ token
+   { , "GPG_ERR_EACCES" },
+     ^
+
+This patch cleans up the generated mkerrcodes.h by making the
+intermediate stage clean for all the versions of gcc i tested (4.x and
+5).
+
+Debian-Bug-Id: 777374
+Signed-Off-By: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
+---
+ src/Makefile.am | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/Makefile.am b/src/Makefile.am
+index 99c2c53..f847a80 100644
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -213,7 +213,7 @@ code-to-errno.h: Makefile mkerrnos.awk errnos.in
+ # It is correct to use $(CPP).  We want the host's idea of the error codes.
+ mkerrcodes.h: Makefile mkerrcodes.awk $(gpg_extra_headers)
+ 	$(AWK) -f $(srcdir)/mkerrcodes1.awk $(srcdir)/errnos.in >_$@
+-	$(CPP) $(CPPFLAGS) $(extra_cppflags) _$@ | grep GPG_ERR_ | \
++	$(CPP) $(CPPFLAGS) $(extra_cppflags) -P _$@ | grep GPG_ERR_ | \
+                $(AWK) -f $(srcdir)/mkerrcodes.awk >$@
+ 	-rm _$@
+ 
+-- 
+2.1.4
+