18 lines
747 B
Diff
18 lines
747 B
Diff
--- mojo/public/c/system/macros.h.orig 2018-09-06 10:11:54.336432699 -0400
|
|
+++ mojo/public/c/system/macros.h 2018-09-06 10:13:56.555727572 -0400
|
|
@@ -27,7 +27,13 @@
|
|
(sizeof(void*) == 4 ? 32 : 0)
|
|
|
|
// Like the C++11 |alignof| operator.
|
|
-#if __cplusplus >= 201103L
|
|
+#if defined(__GNUC__) && __GNUC__ >= 8
|
|
+// GCC 8 has changed the alignof operator to return the minimal alignment
|
|
+// required by the target ABI, instead of the preferred alignment.
|
|
+// This means that on 32-bit x86, it will return 4 instead of 8.
|
|
+// Use __alignof__ instead to avoid this.
|
|
+#define MOJO_ALIGNOF(type) __alignof__(type)
|
|
+#elif __cplusplus >= 201103L
|
|
#define MOJO_ALIGNOF(type) alignof(type)
|
|
#elif defined(__GNUC__)
|
|
#define MOJO_ALIGNOF(type) __alignof__(type)
|