Fix instances of '#if __i386__'.
Triggers -Wundef, which is on in -Weverything.
Bug: http://b/31496165
Change-Id: Ie2241b19abd6257bebf68baa3ecc4de8066c722e
diff --git a/libc/bionic/pthread_create.cpp b/libc/bionic/pthread_create.cpp
index 7986ada..bfa4e8c 100644
--- a/libc/bionic/pthread_create.cpp
+++ b/libc/bionic/pthread_create.cpp
@@ -44,7 +44,7 @@
#include "private/ScopedPthreadMutexLocker.h"
// x86 uses segment descriptors rather than a direct pointer to TLS.
-#if __i386__
+#if defined(__i386__)
#include <asm/ldt.h>
void __init_user_desc(struct user_desc*, bool, void*);
#endif
diff --git a/libc/include/sys/user.h b/libc/include/sys/user.h
index 5601b02..f9ad956 100644
--- a/libc/include/sys/user.h
+++ b/libc/include/sys/user.h
@@ -38,7 +38,7 @@
#define PAGE_SIZE 4096
#define PAGE_MASK (~(PAGE_SIZE - 1))
-#if __i386__
+#if defined(__i386__)
struct user_fpregs_struct {
long cwd;