[gtk+] Minor fix for GTK+ mediaLib code.

[Brian Cameron <bcameron src gnome org>]

commit 33f4ead50679294ce6eed04cd014ece44401d626
Author: Brian Cameron <Brian Cameron sun com>
Date:   Wed Apr 29 18:52:32 2009 -0500

    Minor fix for GTK+ mediaLib code.
    
    After doing some performance analysis, it was found that the GTK+ mediaLib code
    triggers unnecessary lazy loading of dependent libraries.  The current code
    uses RTLD_DEFAULT, RTLD_PROBE, RTLD_NEXT, and RTLD_SELF.  However, RTLD_PROBE
    is all that is necessary, and avoids triggering the lazy loading.  So this
    commit fixes the code to just use RTLD_PROBE.  (Bug 580678)
---
 gdk-pixbuf/pixops/pixops.c |    5 +----
 gdk/gdkmedialib.c          |    5 +----
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/gdk-pixbuf/pixops/pixops.c b/gdk-pixbuf/pixops/pixops.c
index 3d01eda..513d16f 100644
--- a/gdk-pixbuf/pixops/pixops.c
+++ b/gdk-pixbuf/pixops/pixops.c
@@ -217,10 +217,7 @@ _pixops_use_medialib ()
            * For x86 processors use of libumem conflicts with
            * mediaLib, so avoid using it.
            */
-          if ((dlsym (RTLD_DEFAULT, "umem_alloc") != NULL) ||
-              (dlsym (RTLD_PROBE,   "umem_alloc") != NULL) ||
-              (dlsym (RTLD_NEXT,    "umem_alloc") != NULL) ||
-              (dlsym (RTLD_SELF,    "umem_alloc") != NULL))
+          if (dlsym (RTLD_PROBE,   "umem_alloc") != NULL)
             {
               use_medialib = FALSE;
               return;
diff --git a/gdk/gdkmedialib.c b/gdk/gdkmedialib.c
index 0a23012..effb89d 100644
--- a/gdk/gdkmedialib.c
+++ b/gdk/gdkmedialib.c
@@ -104,10 +104,7 @@ _gdk_use_medialib (void)
             * For x86 processors use of libumem conflicts with
             * mediaLib, so avoid using it.
             */
-           if ((dlsym (RTLD_DEFAULT, "umem_alloc") != NULL) ||
-               (dlsym (RTLD_PROBE,   "umem_alloc") != NULL) ||
-               (dlsym (RTLD_NEXT,    "umem_alloc") != NULL) ||
-               (dlsym (RTLD_SELF,    "umem_alloc") != NULL))
+           if (dlsym (RTLD_PROBE,   "umem_alloc") != NULL)
              {
                return FALSE;
              }