mesa: don't set RCONFLICTS / PROVIDES if glvnd is enabled

If glvnd is enabled, mesa packages do not provide full library
implementations (instead it provides two ICDs, one for EGL, one for
GLX). This means that there is no more conflict between mesa packages
and other vendor packages. Stop setting those extra tags for mesa
packages.

(From OE-Core rev: b1b8a0f69dafe23c992754cffb7aaf575753e564)

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/mesa/mesa.inc

@@ -274,27 +274,27 @@ python __anonymous() {
 
     d.setVar("DEBIAN_NOAUTONAME:%slibopencl-mesa%s" % (mlprefix, suffix), "1")
 
-    for p in (("egl", "libegl", "libegl1"),
-              ("opengl", "libgl", "libgl1"),
-              ("glvnd", "libglx",),
-              ("gles", "libgles1", "libglesv1-cm1"),
-              ("gles", "libgles2", "libglesv2-2", "libgles3")):
-        if not p[0] in pkgconfig:
-            continue
-        fullp = mlprefix + p[1] + "-mesa" + suffix
-        pkgs = " " + " ".join(mlprefix + x + suffix for x in p[1:])
-        d.setVar("DEBIAN_NOAUTONAME:" + fullp, "1")
-        d.appendVar("RREPLACES:" + fullp, pkgs)
-        d.appendVar("RPROVIDES:" + fullp, pkgs)
-        d.appendVar("RCONFLICTS:" + fullp, pkgs)
-
-        # For -dev, the first element is both the Debian and original name
-        fullp = mlprefix + p[1] + "-mesa-dev" + suffix
-        pkgs = " " + mlprefix + p[1] + "-dev" + suffix
-        d.setVar("DEBIAN_NOAUTONAME:" + fullp, "1")
-        d.appendVar("RREPLACES:" + fullp, pkgs)
-        d.appendVar("RPROVIDES:" + fullp, pkgs)
-        d.appendVar("RCONFLICTS:" + fullp, pkgs)
+    if 'glvnd' not in pkgconfig:
+        for p in (("egl", "libegl", "libegl1"),
+                  ("opengl", "libgl", "libgl1"),
+                  ("gles", "libgles1", "libglesv1-cm1"),
+                  ("gles", "libgles2", "libglesv2-2", "libgles3")):
+            if not p[0] in pkgconfig:
+                continue
+            fullp = mlprefix + p[1] + "-mesa" + suffix
+            pkgs = " " + " ".join(mlprefix + x + suffix for x in p[1:])
+            d.setVar("DEBIAN_NOAUTONAME:" + fullp, "1")
+            d.appendVar("RREPLACES:" + fullp, pkgs)
+            d.appendVar("RPROVIDES:" + fullp, pkgs)
+            d.appendVar("RCONFLICTS:" + fullp, pkgs)
+
+            # For -dev, the first element is both the Debian and original name
+            fullp = mlprefix + p[1] + "-mesa-dev" + suffix
+            pkgs = " " + mlprefix + p[1] + "-dev" + suffix
+            d.setVar("DEBIAN_NOAUTONAME:" + fullp, "1")
+            d.appendVar("RREPLACES:" + fullp, pkgs)
+            d.appendVar("RPROVIDES:" + fullp, pkgs)
+            d.appendVar("RCONFLICTS:" + fullp, pkgs)
 }
 
 python mesa_populate_packages() {