From 109208e609c961dee49c3133ee5eea599af1f419 Mon Sep 17 00:00:00 2001
From: Thomas Uhle <thomas.uhle@mailbox.tu-dresden.de>
Date: Thu, 9 Mar 2023 22:00:28 +0100
Subject: [PATCH 1/2] Some updates for newer versions of autoconf and libtool

---
 Makefile.am  | 2 +-
 configure.ac | 8 +++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 1be0cbf..5907915 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,7 +10,7 @@ versionedpkglib_LTLIBRARIES = libsnack_sndfile_ext.la
 libsnack_sndfile_ext_la_SOURCES = \
 	snack_sndfile_ext.c
 libsnack_sndfile_ext_la_CFLAGS = @SNACK_INCLUDE_SPEC@ @TCL_INCLUDE_SPEC@ @SNDFILE_CFLAGS@
-libsnack_sndfile_ext_la_LDFLAGS = -version-info 0:0:0 @SNACK_LIB_SPEC@ @TCL_LIB_SPEC@ @SNDFILE_LIBS@
+libsnack_sndfile_ext_la_LDFLAGS = -version-info 0:0:0 -no-undefined @SNACK_LIB_SPEC@ @TCL_LIB_SPEC@ @SNDFILE_LIBS@
 #               TCL_STUB_LIB_FLAG
 #               TCL_STUB_LIB_SPEC
 #               TCL_STUB_LIB_FILE
\ No newline at end of file
diff --git a/configure.ac b/configure.ac
index d2b606c..6ee00f6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,8 +16,7 @@ AM_MAINTAINER_MODE
 dnl Checks for programs.
 AC_PROG_CC
 
-AC_LIBTOOL_WIN32_DLL
-AC_PROG_LIBTOOL
+LT_INIT([disable-static win32-dll])
 
 SC_PATH_TCLCONFIG
 dnl SC_PATH_TKCONFIG
@@ -72,8 +71,7 @@ AC_SUBST(CFLAGS)
 AC_SUBST(TCL_LIB_SPEC)
 AC_SUBST(SNACK_LIB_SPEC)
 dnl Checks for header files.
-AC_CHECK_HEADERS(string.h math.h locale.h)
-AC_HEADER_STDC
+AC_CHECK_HEADERS([string.h math.h locale.h], [], [], [AC_INCLUDES_DEFAULT])
 dnl Checks for compiler characteristics.
 dnl AC_ISC_POSIX
 AC_C_INLINE
@@ -84,4 +82,4 @@ Makefile
 pkgIndex.tcl
 ])
 
-AC_OUTPUT([])
\ No newline at end of file
+AC_OUTPUT
\ No newline at end of file

From d9f9f6ea1848f2684b899d21d86f528875d9193b Mon Sep 17 00:00:00 2001
From: Thomas Uhle <thomas.uhle@mailbox.tu-dresden.de>
Date: Thu, 9 Mar 2023 22:08:51 +0100
Subject: [PATCH 2/2] Replace "wish8.4" by "wish" in test.tcl

---
 test.tcl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test.tcl b/test.tcl
index 06249bd..d4f42f0 100755
--- a/test.tcl
+++ b/test.tcl
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish8.4 "$0" "$@"
+exec wish "$0" "$@"
 
 # 'info sharedlibext' returns '.dll' on Windows and '.so' on most Unix systems