File mingw64-libadplug-libtool.patch of Package mingw64-libadplug

diff --git a/Makefile.am b/Makefile.am
index a0f0a99..5124c68 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -84,6 +84,7 @@ src_libadplug_la_SOURCES = \
 	src/xsm.cpp
 
 src_libadplug_la_LDFLAGS = -release $(PACKAGE_VERSION) -version-info 0
+src_libadplug_la_LDFLAGS += -no-undefined
 src_libadplug_la_LIBADD = $(libbinio_LIBS)
 
 # -Dstricmp=strcasecmp is a hack. Throughout AdPlug, stricmp() is used to do