From 0f9a77f5cbcfcd59144f33ace06f1670bfc259e9 Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Thu, 16 Dec 2021 15:53:01 +0800
Subject: [PATCH] smpeg: fix handling of pkg-config

---
 pkgs/development/libraries/smpeg/default.nix |  1 +
 pkgs/development/libraries/smpeg/gtk.patch   | 15 +++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 pkgs/development/libraries/smpeg/gtk.patch

diff --git a/pkgs/development/libraries/smpeg/default.nix b/pkgs/development/libraries/smpeg/default.nix
index 03af2e40fa3a..8e50945ee996 100644
--- a/pkgs/development/libraries/smpeg/default.nix
+++ b/pkgs/development/libraries/smpeg/default.nix
@@ -14,6 +14,7 @@ stdenv.mkDerivation rec {
     ./format.patch
     ./gcc6.patch
     ./libx11.patch
+    ./gtk.patch
   ];
 
   enableParallelBuilding = true;
diff --git a/pkgs/development/libraries/smpeg/gtk.patch b/pkgs/development/libraries/smpeg/gtk.patch
new file mode 100644
index 000000000000..8f9f2f492ed1
--- /dev/null
+++ b/pkgs/development/libraries/smpeg/gtk.patch
@@ -0,0 +1,15 @@
+diff '--color=auto' -Naur smpeg-r390.orig/acinclude/gtk-2.0.m4 smpeg-r390/acinclude/gtk-2.0.m4
+--- smpeg-r390.orig/acinclude/gtk-2.0.m4	1970-01-01 08:00:01.000000000 +0800
++++ smpeg-r390/acinclude/gtk-2.0.m4	2021-12-16 15:52:17.776001058 +0800
+@@ -24,10 +24,8 @@
+ 
+   no_gtk=""
+ 
+-  AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+-
+   if test x$PKG_CONFIG != xno ; then
+-    if pkg-config --atleast-pkgconfig-version 0.7 ; then
++    if $PKG_CONFIG --atleast-pkgconfig-version 0.7 ; then
+       :
+     else
+       echo "*** pkg-config too old; version 0.7 or better required."