Do not use AC_CHECK_LIB anyway. Use AC_LINK_IFELSE instead.

diff --git a/boost.m4 b/boost.m4
index f3dd675..cdf6c64 100644 (file)
--- a/boost.m4
+++ b/boost.m4
@@ -53,45 +53,35 @@ version_is:BOOST_VERSION
            for c in $1; do
                case $c in 
                    thread)
+                       AC_MSG_CHECKING([Boost threads])
                        AC_SUBST([BOOST_THREAD_LIB])
+                       saveLIBS="${LIBS}"
                        BOOST_THREAD_LIB=""
                        for l in boost_thread-mt boost_thread; do
-                           AC_CHECK_LIB([${l}],[main],[
-                                   BOOST_THREAD_LIB="-l${l}"
-                                   break
-                                   ],[])
-                       done
-                       if test -z "${BOOST_THREAD_LIB}"; then
-                           AC_MSG_ERROR([Boost thread libs not found])
-                       fi
-                       LIBS="${LIBS} ${BOOST_THREAD_LIB}"
-                       AC_MSG_CHECKING([Boost threads])
+                           LIBS="${saveLIBS} -l${l}"
                        AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <boost/version.hpp>
 #include <boost/thread/thread.hpp>
 ]],[[ 
 int x = BOOST_VERSION;
-]])],[AC_MSG_RESULT([yes])],[
-AC_MSG_RESULT([no])
-AC_MSG_ERROR([Boost thread libraries required])
-                           ])
+]])],[
+                           BOOST_THREAD_LIB="-l${l}"
+                           break],[])
+                       done
+                       if test "${BOOST_THREAD_LIB}"; then
+                           AC_MSG_RESULT([yes])
+                       else
+                           AC_MSG_RESULT([no])
+                       fi
                        ;;
                    test)
+                       AC_MSG_CHECKING([Boost unit test framework])
+                       saveLIBS="${LIBS}"
                        AC_SUBST([BOOST_TEST_LIB])
                        BOOST_TEST_LIB=""
                        for l in boost_unit_test_framework-mt boost_unit_test_framework; do
-                           AC_CHECK_LIB([${l}],[main],[
-                                   BOOST_TEST_LIB="-l${l}"
-                                   break
-                                   ],[])
-                       done
-                       if test -z "${BOOST_TEST_LIB}"; then
-                           AC_MSG_ERROR([Boost unit test libs not found])
-                       fi
-                       saveLIBS="${LIBS}"
-                       LIBS="${LIBS} ${BOOST_TEST_LIB}"
-                       AC_MSG_CHECKING([Boost unit test framework])
-                       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+                           LIBS="${saveLIBS} -l${l}"
+                           AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #define BOOST_TEST_DYN_LINK
 #include <boost/test/auto_unit_test.hpp>
 BOOST_AUTO_TEST_CASE( t ) 
@@ -99,8 +89,16 @@ BOOST_AUTO_TEST_CASE( t )
     BOOST_CHECK(1);
 }
 ]],[[ 
-]])],[AC_MSG_RESULT([yes])],[AC_MSG_RESULT([no])
-AC_MSG_ERROR([Boost unit test framework libraries required])])
+]])],[
+                             BOOST_TEST_LIB="-l${l}"
+                             break
+],[])
+                       done
+                       if test "${BOOST_TEST_LIB}"; then
+                           AC_MSG_RESULT([yes])
+                       else
+                           AC_MSG_RESULT([no])
+                       fi
                        LIBS="${saveLIBS}"
                        ;;
                esac