[PATCH] to make grub2 compile on NetBSD

[walt]

NetBSD's gcc wants libgcc and libc to define __enable_execute_stack,
but this is useless for a free-standing executable like grub.  Define
a dummy function in lieu of libgcc to supply __enable_execute_stack.



Index: include/grub/mm.h
===================================================================
RCS file: /sources/grub/grub2/include/grub/mm.h,v
retrieving revision 1.8
diff -u -r1.8 mm.h
--- include/grub/mm.h   21 Jul 2007 23:32:22 -0000      1.8
+++ include/grub/mm.h   3 Feb 2008 21:24:18 -0000
@@ -33,6 +33,7 @@
 void EXPORT_FUNC(grub_free) (void *ptr);
 void *EXPORT_FUNC(grub_realloc) (void *ptr, grub_size_t size);
 void *EXPORT_FUNC(grub_memalign) (grub_size_t align, grub_size_t size);
+void EXPORT_FUNC(__enable_execute_stack) (void);   /* For NetBSD gcc */
 
 /* For debugging.  */
 #if defined(MM_DEBUG) && !defined(GRUB_UTIL)
Index: kern/mm.c
===================================================================
RCS file: /sources/grub/grub2/kern/mm.c,v
retrieving revision 1.19
diff -u -r1.19 mm.c
--- kern/mm.c   23 Jan 2008 14:57:40 -0000      1.19
+++ kern/mm.c   3 Feb 2008 21:24:19 -0000
@@ -66,6 +66,12 @@
 #include <grub/disk.h>
 #include <grub/dl.h>
 
+/* Dummy symbol to make NetBSD gcc happy */
+void
+__enable_execute_stack(void)
+{
+}
+
 #ifdef MM_DEBUG
 # undef grub_malloc
 # undef grub_realloc