From 6d17a4133ba02d290b040012c28b42b9b06d09ce Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Thu, 17 Nov 2016 17:15:55 +1100
Subject: [PATCH] gl/pkg-config: add the configured platform/api/winsys

Allows users to query this from pkg-config instead of requiring them to
compile mini programs checking defines in gstglconfig.h
---
 configure.ac                             | 3 +++
 pkgconfig/gstreamer-gl-uninstalled.pc.in | 3 +++
 pkgconfig/gstreamer-gl.pc.in             | 3 +++
 pkgconfig/meson.build                    | 3 +++
 4 files changed, 12 insertions(+)

diff --git a/configure.ac b/configure.ac
index 03a785b..c96a896 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1300,6 +1300,9 @@ if test "x$GL_APIS" = "x" -o "x$GL_PLATFORMS" = "x" -o "x$GL_WINDOWS" = "x"; the
   HAVE_WINDOW_EAGL=no
 fi
 
+AC_SUBST(GL_APIS)
+AC_SUBST(GL_PLATFORMS)
+AC_SUBST(GL_WINDOWS)
 AC_SUBST(GL_LIBS)
 AC_SUBST(GL_CFLAGS)
 AC_SUBST(GL_OBJCFLAGS)
diff --git a/pkgconfig/gstreamer-gl-uninstalled.pc.in b/pkgconfig/gstreamer-gl-uninstalled.pc.in
index a21ac46..b4ae6d3 100644
--- a/pkgconfig/gstreamer-gl-uninstalled.pc.in
+++ b/pkgconfig/gstreamer-gl-uninstalled.pc.in
@@ -4,6 +4,9 @@ libdir=@gllibdir@
 includedir=@abs_top_builddir@/gst-libs
 girdir=@abs_top_builddir@/gst-libs/gst/base
 typelibdir=@abs_top_builddir@/gst-libs/gst/base
+gl_platforms=@GL_PLATFORMS@
+gl_winsys=@GL_WINDOWS@
+gl_apis=@GL_APIS@
 
 Name: GStreamer OpenGL Plugins Libraries, Uninstalled
 Description: Streaming media framework, OpenGL plugins libraries, uninstalled
diff --git a/pkgconfig/gstreamer-gl.pc.in b/pkgconfig/gstreamer-gl.pc.in
index a3a9dc6..8e7a303 100644
--- a/pkgconfig/gstreamer-gl.pc.in
+++ b/pkgconfig/gstreamer-gl.pc.in
@@ -3,6 +3,9 @@ exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@/gstreamer-@GST_API_VERSION@
 pluginsdir=@libdir@/gstreamer-@GST_API_VERSION@
+gl_platforms=@GL_PLATFORMS@
+gl_winsys=@GL_WINDOWS@
+gl_apis=@GL_APIS@
 
 Name: GStreamer OpenGL Plugins Libraries
 Description: Streaming media framework, OpenGL plugins libraries
diff --git a/pkgconfig/meson.build b/pkgconfig/meson.build
index b6715cd..b2deeac 100644
--- a/pkgconfig/meson.build
+++ b/pkgconfig/meson.build
@@ -37,6 +37,9 @@ pkg_libs = [
 if build_gstgl
   pkgconf.set('gllibdir', join_paths(meson.build_root(), gstgl.outdir()))
   pkg_libs += 'gl'
+  pkgconf.set('GL_APIS', ' '.join(enabled_gl_apis))
+  pkgconf.set('GL_WINDOWS', ' '.join(enabled_gl_winsys))
+  pkgconf.set('GL_PLATFORMS', ' '.join(enabled_gl_platforms))
 endif
 
 if use_wayland
-- 
2.7.4