X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=configure.ac;h=33614e0dca4859318555ae4202b20796ca4aef98;hb=d97079816522f4ac4add574c15b56961aceb036e;hp=f2773672896f209c4af41e8cc45e66eb8d0861c8;hpb=13346da217137e4efb6cf14657960c75a23251ad;p=ghc-hetmet.git

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