libksba: allow header files to be parsed by gcc2. (#2133)

dev-libs/libksba/libksba-1.3.5.recipe

@@ -5,9 +5,10 @@ implemented protocols and presents the data in a consistent way."
 HOMEPAGE="https://www.gnupg.org/related_software/libksba/"
 COPYRIGHT="2001-2015 g10 Code GmbH"
 LICENSE="GNU GPL v3"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="https://www.gnupg.org/ftp/gcrypt/libksba/libksba-$portVersion.tar.bz2"
 CHECKSUM_SHA256="41444fd7a6ff73a79ad9728f985e71c9ba8cd3e5e53358e70d5f066d35c1a340"
+PATCHES="libksba-$portVersion.patchset"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 SECONDARY_ARCHITECTURES="x86_gcc2 x86"

dev-libs/libksba/patches/libksba-1.3.5.patchset

@@ -0,0 +1,28 @@
+From 97f2d3a350da038fa9d11a65384a82538f0415fb Mon Sep 17 00:00:00 2001
+From: fbrosson <fbrosson@localhost>
+Date: Wed, 17 Jan 2018 22:03:45 +0000
+Subject: Do not use __GNUC_PATCHLEVEL__ if it's not defined.
+
+
+diff --git a/src/ksba.h b/src/ksba.h
+index 955dc06..b052783 100644
+--- a/src/ksba.h
++++ b/src/ksba.h
+@@ -45,9 +45,14 @@ extern "C" {
+ 
+ /* Check for compiler features.  */
+ #ifdef __GNUC__
++#ifdef __GNUC_PATCHLEVEL__
+ #define _KSBA_GCC_VERSION (__GNUC__ * 10000 \
+                             + __GNUC_MINOR__ * 100 \
+                             + __GNUC_PATCHLEVEL__)
++#else
++#define _KSBA_GCC_VERSION (__GNUC__ * 10000 \
++                            + __GNUC_MINOR__ * 100)
++#endif
+ #if _KSBA_GCC_VERSION > 30100
+ #define _KSBA_DEPRECATED	__attribute__ ((__deprecated__))
+ #endif
+-- 
+2.15.1
+