From 8e93ec542c3e0a5fac054a30cef807ead6d61ecb Mon Sep 17 00:00:00 2001 From: Ian Lynagh Date: Thu, 5 Aug 2010 14:25:08 +0000 Subject: [PATCH] Fix the -lm configure test; fixes #4155 --- configure.ac | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/configure.ac b/configure.ac index f277367..33614e0 100644 --- a/configure.ac +++ b/configure.ac @@ -780,8 +780,11 @@ 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_SEARCH_LIBS(atan, m, - [AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])]) +AC_CHECK_LIB(m, atan, HaveLibM=YES, HaveLibM=NO) +if test $HaveLibM = YES +then + AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm]) +fi dnl ** check whether this machine has BFD and liberty installed (used for debugging) dnl the order of these tests matters: bfd needs liberty -- 1.7.10.4