diff options
| author | Simon Marlow <marlowsd@gmail.com> | 2009-12-16 11:36:52 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2009-12-16 11:36:52 +0000 |
| commit | 1c1bfbe71037e9b5a925a547e590e3628df00c7b (patch) | |
| tree | 24a6b53a5a438ac19c36758b0c1ee4a56f81a40f /configure.ac | |
| parent | f2bfd33806f1339ecd16eb76b0146544b65dc68e (diff) | |
| download | haskell-1c1bfbe71037e9b5a925a547e590e3628df00c7b.tar.gz | |
fix up libm detection and use (#3724)
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/configure.ac b/configure.ac index 15b3c8547a..a751e17a85 100644 --- a/configure.ac +++ b/configure.ac @@ -728,11 +728,8 @@ dnl Keep that check as early as possible. dnl as we need to know whether we need libm dnl for math functions or not dnl (see http://hackage.haskell.org/trac/ghc/ticket/3730) -AC_CHECK_FUNC(atan,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno]) -if test x"$fp_libm_not_needed" = xdunno; then - AC_CHECK_LIB([m], [atan], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=]) -fi -AC_SUBST([LIBM]) +AC_SEARCH_LIBS(atan, m, + [AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])]) dnl ** check whether this machine has BFD and liberty installed (used for debugging) dnl the order of these tests matters: bfd needs liberty |