diff --git a/configure.ac b/configure.ac
index ff871e2..a820a35 100644
--- a/configure.ac
+++ b/configure.ac
@@ -506,7 +506,7 @@ dnl Multi threaded library.
      [dnl Check for IBM's compiler's TLS option.
       AX_CXXFLAGS_AIX_OPTION([-qtls])])
 
-   AX_TLS_SUPPORT
+   dnl AX_TLS_SUPPORT
    AH_TEMPLATE([LOG4CPLUS_HAVE_TLS_SUPPORT])
    AH_TEMPLATE([LOG4CPLUS_THREAD_LOCAL_VAR])
    AS_IF([test "x$ac_cv_thread_local" = "xyes"],
@@ -680,7 +680,7 @@ dnl Libtool setup.
 dnl Must be latest to catch rpath compiled in by changes made during
 dnl checks before.
 
-LT_PREREQ([2.4.2])
+LT_PREREQ([2.4])
 LT_INIT([win32-dll disable-static pic-only])
 
 AH_TOP([#ifndef LOG4CPLUS_CONFIG_H])