Remove the Must_have_memory hack.

We are not using any alloc function that respects that variable, so
lets drop it. Backport of this commit:

  commit 0ce61e21d6d7dcca0090e319bbcdb678570f2c3f
  Author: Adam Jackson <ajax@redhat.com>
  Date:   Fri Oct 3 16:05:19 2008 -0400

    Remove the Must_have_memory hack.

    Also remove an astonishing amount of misunderstanding of how casts work.

2 files changed, 6 insertions, 12 deletions

diff --git a/nx-X11/programs/Xserver/mi/micursor.c b/nx-X11/programs/Xserver/mi/micursor.c
index e95c43b3d..90b0f2ae9 100644
--- a/nx-X11/programs/Xserver/mi/micursor.c
+++ b/nx-X11/programs/Xserver/mi/micursor.c
@@ -53,8 +53,6 @@ SOFTWARE.
 #include "misc.h"
 #include "mi.h"
 
-extern Bool Must_have_memory;
-
 void
 miRecolorCursor( pScr, pCurs, displayed)
     ScreenPtr	pScr;
@@ -65,11 +63,9 @@ miRecolorCursor( pScr, pCurs, displayed)
      * This is guaranteed to correct any color-dependent state which may have
      * been bound up in private state created by RealizeCursor
      */
-    (* pScr->UnrealizeCursor)( pScr, pCurs);
-    Must_have_memory = TRUE; /* XXX */
-    (* pScr->RealizeCursor)( pScr, pCurs);
-    Must_have_memory = FALSE; /* XXX */
-    if ( displayed)
-	(* pScr->DisplayCursor)( pScr, pCurs);
+    pScr->UnrealizeCursor(pScr, pCurs);
+    pScr->RealizeCursor(pScr, pCurs);
+    if (displayed)
+	pScr->DisplayCursor(pScr, pCurs);
 
 }
diff --git a/nx-X11/programs/Xserver/mi/migc.c b/nx-X11/programs/Xserver/mi/migc.c
index 4d67cbf5d..afd5031a4 100644
--- a/nx-X11/programs/Xserver/mi/migc.c
+++ b/nx-X11/programs/Xserver/mi/migc.c
@@ -68,11 +68,9 @@ miCreateGCOps(prototype)
 {
     GCOpsPtr        ret;
 
-     /* XXX */ Must_have_memory = TRUE;
-    ret = (GCOpsPtr) malloc(sizeof(GCOps));
-     /* XXX */ Must_have_memory = FALSE;
+    ret = malloc(sizeof(GCOps));
     if (!ret)
-	return 0;
+	return NULL;
     *ret = *prototype;
     ret->devPrivate.val = 1;
     return ret;