--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/mingw-s2tc-1-fixes.patch	Wed Oct 18 09:27:04 2017 -0400
@@ -0,0 +1,30 @@
+diff -uNr a/configure.ac b/configure.ac
+--- a/configure.ac	2013-11-04 07:14:46.000000000 -0500
++++ b/configure.ac	2017-10-18 09:14:22.139804537 -0400
+@@ -11,7 +11,13 @@
+ 	fi
+ fi
+ 
+-AC_PROG_LIBTOOL
++ifdef([LT_INIT], [], [
++  errprint([error: you must have libtool 2.2.2 or a more recent version
++])
++  m4exit([1])])
++
++LT_PREREQ([2.2.2])
++LT_INIT([disable-static dlopen win32-dll])
+ 
+ AC_ARG_ENABLE(runtime-linking, AS_HELP_STRING([--disable-runtime-linking], [Do not load the library at runtime (faster startup, more dependencies)]), [enable_runtime_linking=$enableval], [enable_runtime_linking=yes])
+ AC_ARG_ENABLE(tools, AS_HELP_STRING([--disable-tools], [Do not build the s2tc_compress and s2_decompress tools]), [enable_tools=$enableval], [enable_tools=yes])
+diff -uNr a/Makefile.am b/Makefile.am
+--- a/Makefile.am	2013-11-04 07:14:46.000000000 -0500
++++ b/Makefile.am	2017-10-18 09:15:08.413658528 -0400
+@@ -26,7 +26,7 @@
+ if ENABLE_LIB
+ lib_LTLIBRARIES = libtxc_dxtn.la
+ libtxc_dxtn_la_SOURCES = s2tc_algorithm.cpp s2tc_libtxc_dxtn.cpp s2tc_common.h s2tc_algorithm.h txc_dxtn.h s2tc_license.h
+-libtxc_dxtn_la_LDFLAGS = -versioninfo 0:0:0
++libtxc_dxtn_la_LDFLAGS = -versioninfo 0:0:0 -no-undefined
+ libtxc_dxtn_la_LIBADD = -lm
+ libtxc_dxtn_la_CFLAGS = -fvisibility=hidden -Wold-style-definition -Wstrict-prototypes -Wsign-compare -Wdeclaration-after-statement
+ library_includedir = $(includedir)