libgpg_error: add a recipe for version 1.15

dev-libs/libgpg_error/patches/libgpg_error-1.15.patchset

@@ -0,0 +1,22 @@
+From 704f5695c327d67f550795e82004889717cf6ab9 Mon Sep 17 00:00:00 2001
+From: Jerome Duval <jerome.duval@gmail.com>
+Date: Tue, 5 Aug 2014 16:25:46 +0000
+Subject: haiku patch
+
+
+diff --git a/src/mkerrcodes2.awk b/src/mkerrcodes2.awk
+index ea58503..93cfef2 100644
+--- a/src/mkerrcodes2.awk
++++ b/src/mkerrcodes2.awk
+@@ -81,7 +81,7 @@ BEGIN {
+ /^#/ { next; }
+ 
+ header {
+-  if ($1 ~ /^[0123456789]+$/)
++  if ($1 ~ /^-?[0123456789]+$/)
+     {
+       print "static const int err_code_from_index[] = {";
+       header = 0;
+-- 
+1.8.3.4
+