[PATCH 1/2] use AC_SEARCH_LIBS instead of AC_CHECK_LIBS for m, pthread and ltdl

[Andrei Kholodnyi]

---
 configure.ac |   15 ++++++---------
 1 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/configure.ac b/configure.ac
index 944ca6b..814d944 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,15 +70,12 @@ case ${host} in
 esac
 
 dnl Checks for libraries.
-AC_CHECK_LIB(m,
-        sqrt, echo "",
-        echo "*** Required math library missing! See INSTALL .";exit 1)
-AC_CHECK_LIB(dl,
-        main, echo "",
-        echo "*** Required dl library missing! See INSTALL .";exit 1)
-AC_CHECK_LIB(pthread,
-        pthread_create, echo "",
-        echo "*** Required pthread library missing! See INSTALL .";exit 1)
+AC_SEARCH_LIBS([sqrt], [m], [],
+       [AC_MSG_FAILURE([Math library missing])])
+AC_SEARCH_LIBS([pthread_create], [pthread], [],
+       [AC_MSG_FAILURE([Threads library missing])])
+AC_SEARCH_LIBS([lt_dlopen], [ltdl], [],
+       [AC_MSG_FAILURE([ltdl library missing])])
 
 PKG_CHECK_MODULES(GLIB,glib-2.0,,exit)
 AC_SUBST(GLIB_CFLAGS)
-- 
1.6.0.4