XFree86 4.3.0.1

1 files changed, 9 insertions, 5 deletions

diff --git a/Xalloca.h b/Xalloca.h
index 4eb3d28..f010006 100644
--- a/Xalloca.h
+++ b/Xalloca.h
@@ -27,6 +27,7 @@ other dealings in this Software without prior written authorization
 from The Open Group.
 
 */
+/* $XFree86: xc/include/Xalloca.h,v 3.11 2002/12/01 20:08:41 tsi Exp $ */
 
 /*
  * The purpose of this header is to define the macros ALLOCATE_LOCAL and
@@ -82,7 +83,6 @@ from The Open Group.
 #    else /* NCR */
 #      define ALLOCATE_LOCAL(size)	alloca(size)
 #    endif
-#  define DEALLOCATE_LOCAL(ptr)  /* as nothing */
 #  endif /* defined(__HIGHC__) */
 
 
@@ -91,7 +91,6 @@ from The Open Group.
 #      define alloca __builtin_alloca
 #    endif /* !alloca */
 #    define ALLOCATE_LOCAL(size) alloca((int)(size))
-#    define DEALLOCATE_LOCAL(ptr)  /* as nothing */
 #  else /* ! __GNUC__ */
 
 /*
@@ -100,22 +99,23 @@ from The Open Group.
  * from alloca.h which #defines alloca.
  */
 #    ifndef NCR
-#      if defined(vax) || defined(sun) || defined(apollo) || defined(stellar) || defined(USL) || defined(alloca)
+#      if defined(vax) || defined(sun) || defined(apollo) || defined(stellar) || defined(alloca)
 /*
  * Some System V boxes extract alloca.o from /lib/libPW.a; if you
  * decide that you don't want to use alloca, you might want to fix it here.
  */
 /* alloca might be a macro taking one arg (hi, Sun!), so give it one. */
 #        ifndef __sgi			/* IRIX 5/6 has definition */
+#         ifndef __QNX__
 #          define __Xnullarg		/* as nothing */
 #          ifndef X_NOT_STDC_ENV
              extern void *alloca(__Xnullarg);
 #          else
              extern char *alloca(__Xnullarg);
 #          endif
+#         endif /* __QNX__ */
 #        endif /* __sgi */
 #        define ALLOCATE_LOCAL(size) alloca((int)(size))
-#        define DEALLOCATE_LOCAL(ptr)  /* as nothing */
 #      endif /* who does alloca */
 #    endif /* NCR */
 #  endif /* __GNUC__ */
@@ -130,6 +130,10 @@ from The Open Group.
 #    define ALLOCATE_LOCAL(_size)  ALLOCATE_LOCAL_FALLBACK undefined!
 #    define DEALLOCATE_LOCAL(_ptr) DEALLOCATE_LOCAL_FALLBACK undefined!
 #  endif /* defined(ALLOCATE_LOCAL_FALLBACK && DEALLOCATE_LOCAL_FALLBACK) */
-#endif /* !defined(ALLOCATE_LOCAL) */
+#else
+#  if !defined(DEALLOCATE_LOCAL)
+#    define DEALLOCATE_LOCAL(_ptr) do {} while(0)
+#  endif
+#endif /* defined(ALLOCATE_LOCAL) */
 
 #endif /* XALLOCA_H */