cmake: test for the presence of fenv.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114205 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index f75e5dfb26563e4f5c5e1cf8ba1ea93a0afb64c9..e3aa10cf7103474a8b2de71d0281a95187a565e2 100755 (executable)
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -69,6 +69,7 @@ check_include_file(unistd.h HAVE_UNISTD_H)
 check_include_file(utime.h HAVE_UTIME_H)
 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
 check_include_file(windows.h HAVE_WINDOWS_H)
+check_include_file(fenv.h HAVE_FENV_H)
 
 # library checks
 if( NOT LLVM_ON_WIN32 )