diff -Naur vapoursynth-R57.old/Makefile.am vapoursynth-R57/Makefile.am
--- vapoursynth-R57.old/Makefile.am	2022-03-02 08:35:44.861454145 +0100
+++ vapoursynth-R57/Makefile.am	2022-03-02 08:36:52.981729877 +0100
@@ -88,7 +88,7 @@
 
 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)"'
 libvapoursynth_la_LIBADD = $(PTHREAD_LIBS) $(ZIMG_LIBS) $(DLOPENLIB)