mdbx: add workaround for GCC 4.8 preprocessor bug.

Change-Id: I965cfbcd43596ef896a6b849dd043804bdb3f41f
erthink · May 3, 2021 · 7d54518 · 7d54518
1 parent d6e67e3
commit 7d54518
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/options.h b/src/options.h
@@ -162,7 +162,11 @@
 /** Presumed malloc size overhead for each allocation
  * to adjust allocations to be more aligned. */
 #ifndef MDBX_ASSUME_MALLOC_OVERHEAD
+#ifdef __SIZEOF_POINTER__
+#define MDBX_ASSUME_MALLOC_OVERHEAD (__SIZEOF_POINTER__ * 2u)
+#else
 #define MDBX_ASSUME_MALLOC_OVERHEAD (sizeof(void *) * 2u)
+#endif
 #elif MDBX_ASSUME_MALLOC_OVERHEAD < 0 || MDBX_ASSUME_MALLOC_OVERHEAD > 64 ||   \
     MDBX_ASSUME_MALLOC_OVERHEAD % 4
 #error MDBX_ASSUME_MALLOC_OVERHEAD must be defined in range 0..64 and be multiple of 4