--- a/security/sandbox/linux/SandboxFilter.cpp	2020-11-23 22:41:14.556378950 +0100
+++ b/security/sandbox/linux/SandboxFilter.cpp	2020-11-23 22:40:23.595806444 +0100
@@ -68,7 +68,13 @@

 // The headers define O_LARGEFILE as 0 on x86_64, but we need the
 // actual value because it shows up in file flags.
-#define O_LARGEFILE_REAL 00100000
+#if defined(__x86_64__) || defined(__i386__) || defined(__mips__)
+#define O_LARGEFILE_REAL 0100000
+#elif defined(__powerpc__)
+#define O_LARGEFILE_REAL 0200000
+#else
+#define O_LARGEFILE_REAL O_LARGEFILE
+#endif

 // Not part of UAPI, but userspace sees it in F_GETFL; see bug 1650751.
 #define FMODE_NONOTIFY 0x4000000