diff -Naur vapoursynth-R65.old/Makefile.am vapoursynth-R65/Makefile.am
--- vapoursynth-R65.old/Makefile.am	2023-11-02 09:22:50.859928603 +0100
+++ vapoursynth-R65/Makefile.am	2023-11-02 09:23:43.376805703 +0100
@@ -89,7 +89,7 @@
 
 pkgconfig_DATA += pc/vapoursynth.pc
 
-libvapoursynth_la_LDFLAGS = -no-undefined -avoid-version $(UNDEFINEDLDFLAGS)
+libvapoursynth_la_LDFLAGS = -no-undefined -version-info $(PACKAGE_VERSION) $(UNDEFINEDLDFLAGS)
 libvapoursynth_la_CPPFLAGS = $(PTHREAD_CFLAGS) $(ZIMG_CFLAGS) -DVS_PATH_PLUGINDIR='"$(PLUGINDIR)"' -DVS_CURRENT_RELEASE='$(VSCURRENTRELEASE)'
 libvapoursynth_la_LIBADD = $(PTHREAD_LIBS) $(ZIMG_LIBS) $(DLOPENLIB)