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-rw-r--r--include/obstack.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/obstack.h b/include/obstack.h
index a6eb6c9..0d8746f 100644
--- a/include/obstack.h
+++ b/include/obstack.h
@@ -137,9 +137,9 @@
relative to B. Otherwise, use the faster strategy of computing the
alignment relative to 0. */
-#define __PTR_ALIGN(B, P, A) \
- __BPTR_ALIGN (sizeof (ptrdiff_t) < sizeof (void *) ? (B) : (char *) 0, \
- P, A)
+#define __PTR_ALIGN(B, P, A) \
+ (sizeof (ptrdiff_t) < sizeof (void *) ? __BPTR_ALIGN (B, P, A) \
+ : (char *) (((ptrdiff_t) (P) + (A)) & ~(A)))
#ifndef __attribute_pure__
# if defined __GNUC_MINOR__ && __GNUC__ * 1000 + __GNUC_MINOR__ >= 2096