Update libtool support, patch by Priit ES0PLS

git-svn-id: https://hamlib.svn.sourceforge.net/svnroot/hamlib/trunk@2690 7ae35d74-ebe9-4afe-98af-79ac388436b8

autogen.sh

@@ -3,6 +3,7 @@
 # Taken from glib CVS
 
 # Change the following to match the versions installed on your system
+LIBTOOLIZE=libtoolize
 AUTOCONF=autoconf
 AUTOHEADER=autoheader
 AUTOMAKE=automake
@@ -38,6 +39,14 @@ FILE=include/hamlib/rig.h
 
 DIE=0
 
+($LIBTOOLIZE --version) < /dev/null > /dev/null 2>&1 || {
+	echo
+        echo "You must have libtool installed to compile $PROJECT."
+        echo "Download the appropriate package for your distribution,"
+        echo "or get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+	DIE=1
+}
+
 ($AUTOCONF --version) < /dev/null > /dev/null 2>&1 || {
         echo
         echo "You must have autoconf installed to compile $PROJECT."
@@ -78,7 +87,7 @@ $ACLOCAL $ACLOCAL_FLAGS
 # optionally feature autoheader
 ($AUTOHEADER --version)  < /dev/null > /dev/null 2>&1 && $AUTOHEADER
 
-libtoolize --automake --ltdl
+$LIBTOOLIZE -c -i --force
 $AUTOMAKE -a $am_opt
 $AUTOCONF
 cd $ORIGDIR

configure.ac

@@ -24,7 +24,7 @@ AM_MAINTAINER_MODE
 ABI_VERSION=2
 
 dnl Pick up the Hamlib macros.
-AM_ACLOCAL_INCLUDE(macros)
+AM_ACLOCAL_INCLUDE([macros])
 
 AC_DEFINE_UNQUOTED(ABI_VERSION, $ABI_VERSION, [Frontend ABI version])
 AC_SUBST(ABI_VERSION)
@@ -176,22 +176,10 @@ AC_LIBOBJ(dummy)
 ## ------------------------ ##
 ## libtool  Initialisation. ##
 ## ------------------------ ##
-dnl Enable building of the convenience library
-dnl and set LIBLTDL accordingly
-AC_LIBLTDL_CONVENIENCE
-dnl Substitute INCLTDL and LIBLTDL in the Makefiles
-AC_SUBST([INCLTDL])
-AC_SUBST([LIBLTDL])
+LT_CONFIG_LTDL_DIR([libltdl])
+LT_INIT([dlopen], [win32-dll])
+LTDL_INIT([convenience])
 
-dnl Check for dlopen support
-AC_LIBTOOL_WIN32_DLL
-AC_LIBTOOL_DLOPEN
-dnl Configure libtool
-AC_PROG_LIBTOOL
-AC_SUBST([LIBTOOL_DEPS])
-AC_LIB_LTDL
-dnl Configure libltdl
-AC_CONFIG_SUBDIRS(libltdl)
 
 case "$host_os" in
 darwin* | rhapsody*)