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authorDouglas Gregor <dgregor@apple.com>2012-01-29 23:40:50 +0000
committerDouglas Gregor <dgregor@apple.com>2012-01-29 23:40:50 +0000
commit8101c7f8a9b9494014db5da9f88b50e69f90acf4 (patch)
tree51b5a3261c418a681896308fefa6ab142294b7b9 /lib
parent0fcba567b93b4af6045d51ef28b22b029a03a010 (diff)
Teach tgmath.h to only include <complex.h> if it's available.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149213 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r--lib/Headers/tgmath.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Headers/tgmath.h b/lib/Headers/tgmath.h
index 1b0b9d24c1..554af6cf74 100644
--- a/lib/Headers/tgmath.h
+++ b/lib/Headers/tgmath.h
@@ -30,7 +30,9 @@
/* C++ handles type genericity with overloading in math.h. */
#ifndef __cplusplus
-#include <complex.h>
+#if __has_include(<complex.h>)
+# include <complex.h>
+#endif
#define _TG_ATTRSp __attribute__((__overloadable__))
#define _TG_ATTRS __attribute__((__overloadable__, __always_inline__))