e2fsprogs: add posix_memalign related portability patch from #8508

SVN-Revision: 32112
This commit is contained in:
Felix Fietkau 2012-06-07 15:24:33 +00:00
parent 639ee81002
commit 68031593c8

View file

@ -0,0 +1,31 @@
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1212,7 +1212,26 @@
if (align == 0)
align = 8;
- if (retval = posix_memalign((void **) ptr, align, size)) {
+#ifdef HAVE_POSIX_MEMALIGN
+ retval = posix_memalign((void **)ptr, align, size);
+#else
+#ifdef HAVE_MEMALIGN
+ if ((*(void **)ptr = (void *)memalign(align, size)) == NULL)
+ retval = errno;
+ else
+ retval = 0;
+#else
+#ifdef HAVE_VALLOC
+ if ((*(void **)ptr = valloc(size)) == NULL)
+ retval = errno;
+ else
+ retval = 0;
+#else
+# error "Impossible to allocate aligned memory!"
+#endif /* HAVE_VALLOC */
+#endif /* HAVE_MEMALIGN */
+#endif /* HAVE_POSIX_MEMALIGN */
+ if (retval) {
if (retval == ENOMEM)
return EXT2_ET_NO_MEMORY;
return retval;
--