Make compiz look for GLX_EXT_texture_from_pixmap in the server extensions

From: Kristian Høgsberg <krh@redhat.com>

too.
---

 src/screen.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/screen.c b/src/screen.c
index 0941107..9ec30d5 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -897,7 +897,7 @@ addScreen (CompDisplay *display,
     Window		 *children;
     unsigned int	 nchildren;
     int			 defaultDepth, nvisinfo, nElements, value, i;
-    const char		 *glxExtensions, *glExtensions;
+    const char		 *glxExtensions, *glxServerExtensions, *glExtensions;
     GLint	         stencilBits;
     XSetWindowAttributes attrib;
     GLfloat		 globalAmbient[]  = { 0.1f, 0.1f,  0.1f, 0.1f };
@@ -1117,7 +1117,11 @@ addScreen (CompDisplay *display,
     XFree (visinfo);
 
     glxExtensions = glXQueryExtensionsString (s->display->display, screenNum);
-    if (!strstr (glxExtensions, "GLX_EXT_texture_from_pixmap"))
+    glxServerExtensions = glXQueryServerString(s->display->display,
+					       screenNum, GLX_EXTENSIONS );
+
+    if (!strstr (glxExtensions, "GLX_EXT_texture_from_pixmap") &&
+	!strstr (glxServerExtensions, "GLX_EXT_texture_from_pixmap"))
     {
 	fprintf (stderr, "%s: GLX_EXT_texture_from_pixmap is missing\n",
 		 programName);