Include <malloc.h> when advisable

[gnu-emacs] / src / vm-limit.c

diff --git a/src/vm-limit.c b/src/vm-limit.c
index 0c6dbddc4f26778157b6340e766e3efd80c56490..42f04708f94b926e973516da0efe0090d79ab196 100644 (file)
--- a/src/vm-limit.c
+++ b/src/vm-limit.c
@@ -51,9 +51,16 @@ char data_start[1] = { 1 };
 # endif
 #endif
 
-/* From gmalloc.c.  */
-extern void (* __after_morecore_hook) (void);
+#ifdef HAVE_MALLOC_H
+# include <malloc.h>
+#endif
+#ifndef __MALLOC_HOOK_VOLATILE
+# define __MALLOC_HOOK_VOLATILE volatile
+#endif
+#ifndef HAVE_MALLOC_H
 extern void *(*__morecore) (ptrdiff_t);
+extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void);
+#endif
 
 /* From ralloc.c.  */
 #ifdef REL_ALLOC