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-rw-r--r--compat/obstack.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/compat/obstack.h b/compat/obstack.h
index 01e7c81840..f90a46d9b9 100644
--- a/compat/obstack.h
+++ b/compat/obstack.h
@@ -135,8 +135,10 @@ extern "C" {
alignment relative to 0. */
#define __PTR_ALIGN(B, P, A) \
- __BPTR_ALIGN (sizeof (PTR_INT_TYPE) < sizeof (void *) ? (B) : (char *) 0, \
- P, A)
+ (sizeof (PTR_INT_TYPE) < sizeof(void *) ? \
+ __BPTR_ALIGN((B), (P), (A)) : \
+ (void *)__BPTR_ALIGN((PTR_INT_TYPE)(void *)0, (PTR_INT_TYPE)(P), (A)) \
+ )
#include <string.h>