From: Dan Gohman <gohman@apple.com>
Date: Mon, 11 Oct 2010 22:30:59 +0000 (+0000)
Subject: Clang's #include handling apparently doesn't work for libstdc++'s
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d3d2ddc78ea901a5b11123374f50523ea86428cb;p=oota-llvm.git

Clang's #include handling apparently doesn't work for libstdc++'s
fenv.h. See PR6907 for details. Work around this in FEnv.h to fix
the seflhost build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116256 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/System/FEnv.h b/include/llvm/System/FEnv.h
index 57097d2f57a..042e43928bc 100644
--- a/include/llvm/System/FEnv.h
+++ b/include/llvm/System/FEnv.h
@@ -21,6 +21,12 @@
 #include <fenv.h>
 #endif
 
+// FIXME: Clang's #include handling apparently doesn't work for libstdc++'s
+// fenv.h; see PR6907 for details.
+#if defined(__clang__) && defined(_GLIBCXX_FENV_H)
+#undef HAVE_FENV_H
+#endif
+
 namespace llvm {
 namespace sys {