diff options
| author | Joerg Sonnenberger <joerg@bec.de> | 2013-03-25 13:13:33 +0000 |
|---|---|---|
| committer | Joerg Sonnenberger <joerg@bec.de> | 2013-03-25 13:13:33 +0000 |
| commit | f9a7132df8f8e0dd0f54fd603d358fc5a2285011 (patch) | |
| tree | 7ca7902dd019b343ea5fe1c7aea9a140fb85b610 /autoconf | |
| parent | 1bb93a912199bda15214d1ee7f3c731b8e9b648d (diff) | |
Refine fenv.h handling: check if the desired macros exist, before using
it. NetBSD/ARM and TILE-Gx are examples for platforms that have an
unusable fenv.h and this avoids the need for a blacklist.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177865 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'autoconf')
| -rw-r--r-- | autoconf/configure.ac | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/autoconf/configure.ac b/autoconf/configure.ac index 9d61c24e7a..0097db3d68 100644 --- a/autoconf/configure.ac +++ b/autoconf/configure.ac @@ -1493,6 +1493,7 @@ AC_CHECK_HEADERS([sys/mman.h sys/param.h sys/resource.h sys/time.h sys/uio.h]) AC_CHECK_HEADERS([sys/types.h sys/ioctl.h malloc/malloc.h mach/mach.h]) AC_CHECK_HEADERS([valgrind/valgrind.h]) AC_CHECK_HEADERS([fenv.h]) +AC_CHECK_DECLS([FE_ALL_EXCEPT, FE_INEXACT], [], [], [[#include <fenv.h>]]) if test "$LLVM_ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then AC_CHECK_HEADERS(pthread.h, AC_SUBST(HAVE_PTHREAD, 1), |