[gtk+/gtk-3-22] gl: Check whether use_es is positive

[Emmanuele Bassi <ebassi src gnome org>]

commit 4cdd4d03cc6ec9aba543cf3463c59f8bf7c2121f
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sat Oct 22 02:37:53 2016 +0100

    gl: Check whether use_es is positive
    
    Now that the use_es field is an int with a possible negative value, we
    cannot use it its truth value directly; we need to check if it's a
    positive value, instead.
    
    (cherry picked from commit 8e85f55240d4e3a2191c7945c7e76a6f20a4d32d)
    Signed-off-by: Emmanuele Bassi <ebassi gnome org>

 gdk/gdkglcontext.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gdk/gdkglcontext.c b/gdk/gdkglcontext.c
index 248ce11..526ed84 100644
--- a/gdk/gdkglcontext.c
+++ b/gdk/gdkglcontext.c
@@ -576,7 +576,7 @@ gdk_gl_context_set_required_version (GdkGLContext *context,
   /* Enforce a minimum context version number of 3.2 */
   version = (major * 100) + minor;
 
-  if (priv->use_es || (_gdk_gl_flags & GDK_GL_GLES) != 0)
+  if (priv->use_es > 0 || (_gdk_gl_flags & GDK_GL_GLES) != 0)
     min_ver = 200;
   else
     min_ver = 302;
@@ -612,7 +612,7 @@ gdk_gl_context_get_required_version (GdkGLContext *context,
 
   g_return_if_fail (GDK_IS_GL_CONTEXT (context));
 
-  if (priv->use_es || (_gdk_gl_flags & GDK_GL_GLES) != 0)
+  if (priv->use_es > 0 || (_gdk_gl_flags & GDK_GL_GLES) != 0)
     {
       default_major = 2;
       default_minor = 0;