chromium-69.0.3497.81-gcc8-alignof.patch

diff -urNp chromium-69.0.3497.81.orig/mojo/public/c/system/macros.h chromium-69.0.3497.81/mojo/public/c/system/macros.h
--- chromium-69.0.3497.81.orig/mojo/public/c/system/macros.h	2018-09-05 13:58:00.745383984 +0300
+++ chromium-69.0.3497.81/mojo/public/c/system/macros.h	2018-09-05 14:08:52.112470948 +0300
@@ -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)