--- configure.ac

+++ configure.ac

@@ -30,7 +30,10 @@ AC_SUBST(PACKAGE_RELEASE,1)		dnl  keep A

 AC_CONFIG_HEADER([config.h])

 AC_CONFIG_SRCDIR([backend/epkowa.c])

+dnl Detect old libtool

+m4_ifndef([LT_OUTPUT], [

 AC_CONFIG_SUBDIRS([libltdl])

+])

 AM_INIT_AUTOMAKE([gnu 1.7])

@@ -196,10 +199,10 @@ dnl  The somewhat obscure LT_AC_PROG_SED

 dnl  SED environment variable gets set before it's used by the libtool

 dnl  machinery.  This works around buggy libtool versions.

 LT_AC_PROG_SED

-AC_LIB_LTDL

 AC_LIBLTDL_CONVENIENCE

 AC_LIBTOOL_DLOPEN

 AC_PROG_LIBTOOL

+AC_LIB_LTDL

 AC_SUBST(LTDLINCL)

 AC_SUBST(LIBLTDL)

--- lib/imgstream.cc

+++ lib/imgstream.cc

@@ -211,6 +211,17 @@ int selector (const dirent *);

 imgstream::dl_handle

 imgstream::find_dlopen (const char *libname)

 {

+// forward compatibility

+#ifndef LTDL_SHLIB_EXT

+#define LTDL_SHLIB_EXT LT_MODULE_EXT

+#endif

+#ifndef LTDL_SHLIBPATH_VAR

+#define LTDL_SHLIBPATH_VAR LT_MODULE_PATH_VAR

+#endif

+#ifndef LTDL_SYSSEARCHPATH

+#define LTDL_SYSSEARCHPATH LT_DLSEARCH_PATH 

+#endif

+

   using std::bad_alloc;

   dl_handle result = NULL;