From 93b38e25a6aae9fac970f650d36e8e6d881ba700 Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Tue, 31 Dec 2013 06:49:20 -0700
Subject: [PATCH] fix CPP guard on clang pragmas

---
 racket/src/racket/src/eval.c |  2 +-
 racket/src/racket/src/file.c |  2 +-
 racket/src/racket/src/jit.h  | 10 ++++++----
 racket/src/racket/src/read.c |  2 +-
 4 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/racket/src/racket/src/eval.c b/racket/src/racket/src/eval.c
index b44f4e3712..ede8cf8850 100644
--- a/racket/src/racket/src/eval.c
+++ b/racket/src/racket/src/eval.c
@@ -172,7 +172,7 @@
 # define INIT_JIT_ON 0
 #endif
 
-#ifdef __GNUC__
+#ifdef __clang__
 # ifdef MZ_PRECISE_GC
 #  pragma clang diagnostic ignored "-Wself-assign"
 # endif
diff --git a/racket/src/racket/src/file.c b/racket/src/racket/src/file.c
index e2abaaf0ba..003ff19116 100644
--- a/racket/src/racket/src/file.c
+++ b/racket/src/racket/src/file.c
@@ -157,7 +157,7 @@ static int check_dos_slashslash_qm(const char *next, int len, int *drive_end,
 
 #define is_drive_letter(c) (((unsigned char)c < 128) && isalpha((unsigned char)c))
 
-#ifdef __GNUC__
+#ifdef __clang__
 # ifdef MZ_PRECISE_GC
 #  pragma clang diagnostic ignored "-Wtautological-compare"
 # endif
diff --git a/racket/src/racket/src/jit.h b/racket/src/racket/src/jit.h
index 303c2ce608..4183ceedf6 100644
--- a/racket/src/racket/src/jit.h
+++ b/racket/src/racket/src/jit.h
@@ -31,10 +31,12 @@
 
 #ifdef __GNUC__
 #pragma GCC diagnostic ignored "-Waddress"
-# ifdef MZ_PRECISE_GC
-#  pragma clang diagnostic ignored "-Wtautological-compare"
-#  pragma clang diagnostic ignored "-Wself-assign"
-#  pragma clang diagnostic ignored "-Wconstant-logical-operand"
+#ifdef __clang__
+#  ifdef MZ_PRECISE_GC
+#   pragma clang diagnostic ignored "-Wtautological-compare"
+#   pragma clang diagnostic ignored "-Wself-assign"
+#   pragma clang diagnostic ignored "-Wconstant-logical-operand"
+#  endif
 # endif
 #endif
 
diff --git a/racket/src/racket/src/read.c b/racket/src/racket/src/read.c
index d127e97269..64428505d9 100644
--- a/racket/src/racket/src/read.c
+++ b/racket/src/racket/src/read.c
@@ -47,7 +47,7 @@
 # include <malloc.h>
 #endif
 
-#ifdef __GNUC__
+#ifdef __clang__
 # ifdef MZ_PRECISE_GC
 #  pragma clang diagnostic ignored "-Wself-assign"
 # endif