From 72359c326537cd6986b5f6ba9c8833b268d24c93 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
Date: Thu, 9 Aug 2007 03:07:07 +0000
Subject: (posix_memalign): New function.

---
 src/gmalloc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

(limited to 'src/gmalloc.c')

diff --git a/src/gmalloc.c b/src/gmalloc.c
index ea6ccc4bf1..ccc08e1ff6 100644
--- a/src/gmalloc.c
+++ b/src/gmalloc.c
@@ -129,6 +129,8 @@ extern FREE_RETURN_TYPE free PP ((__ptr_t __ptr));
 #if ! (defined (_MALLOC_INTERNAL) && __DJGPP__ - 0 == 1) /* Avoid conflict.  */
 extern __ptr_t memalign PP ((__malloc_size_t __alignment,
 			     __malloc_size_t __size));
+extern int posix_memalign PP ((__ptr_t *, __malloc_size_t,
+			       __malloc_size_t size));
 #endif
 
 /* Allocate SIZE bytes on a page boundary.  */
@@ -1857,6 +1859,36 @@ memalign (alignment, size)
   return result;
 }
 
+#ifndef ENOMEM
+#define ENOMEM 12
+#endif
+
+#ifndef EINVAL
+#define EINVAL 22
+#endif
+
+int
+posix_memalign (memptr, alignment, size)
+     __ptr_t *memptr;
+     __malloc_size_t alignment;
+     __malloc_size_t size;
+{
+  __ptr_t mem;
+
+  if (alignment == 0
+      || alignment % sizeof (__ptr_t) != 0
+      || (alignment & (alignment - 1)) != 0)
+    return EINVAL;
+
+  mem = memalign (alignment, size);
+  if (mem == NULL)
+    return ENOMEM;
+
+  *memptr = mem;
+
+  return 0;
+}
+
 #endif /* Not DJGPP v1 */
 /* Allocate memory on a page boundary.
    Copyright (C) 1991, 92, 93, 94, 96 Free Software Foundation, Inc.
-- 
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