--- vmaf-1.3.9/wrapper/Makefile.orig	2018-10-29 21:15:18.206220575 +0100
+++ vmaf-1.3.9/wrapper/Makefile	2018-10-31 07:16:17.494822306 +0100
@@ -1,7 +1,9 @@
 LIBVMAF = libvmaf.a
+LIBVMAFSO = libvmaf.so
+LIBVMAFSOVER = libvmaf.so.0
 
 .PHONY: all
-all: $(LIBVMAF) vmafossexec
+all: $(LIBVMAF) $(LIBVMAFSO) vmafossexec
 
 TOP = $(shell pwd)
 SRCDIR = $(TOP)/src
@@ -166,7 +168,11 @@
 $(LIBVMAF): $(OBJS) $(wildcard ../ptools/*.o)
 	ar rcs $@ $^
 
-vmafossexec: $(OBJDIR)/main.o $(LIBVMAF)
+$(LIBVMAFSO): $(OBJS) $(wildcard ../ptools/*.o)
+	$(CXX) $(LDFLAGS) $(CFLAGS) -shared -o $(LIBVMAFSOVER) -Wl,-soname,$(LIBVMAFSOVER) $^ -pthread
+	ln -sf $(LIBVMAFSOVER) $(LIBVMAFSO)
+
+vmafossexec: $(OBJDIR)/main.o $(LIBVMAFSO)
 	$(CXX) -s -o $@ $(LDFLAGS) $^ -pthread
 
 .PHONY: install
@@ -175,6 +181,8 @@
 	mkdir -p $(DESTDIR)$(INSTALL_PREFIX)/include
 	mkdir -p $(DESTDIR)$(INSTALL_PREFIX)/share
 	mkdir -p $(DESTDIR)$(LIBDIR)/pkgconfig
+	install $(LIBVMAFSOVER) $(DESTDIR)$(LIBDIR)/$(LIBVMAFSOVER)
+	ln -s $(LIBVMAFSOVER) $(DESTDIR)$(LIBDIR)/$(LIBVMAFSO)
 	cp $(LIBVMAF) $(DESTDIR)$(LIBDIR)/$(LIBVMAF)
 	cp src/libvmaf.h $(DESTDIR)$(INSTALL_PREFIX)/include/
 	cp -r ../model $(DESTDIR)$(INSTALL_PREFIX)/share/
--- vmaf-1.3.9/feature/Makefile.orig	2018-08-07 23:36:56.000000000 +0200
+++ vmaf-1.3.9/feature/Makefile	2018-10-31 08:01:19.208124793 +0100
@@ -5,7 +5,7 @@
 SRCDIR  = $(TOP)/src
 OBJDIR  = $(TOP)/obj
 TOOLDIR = $(TOP)/tool
-LIBVMAF = $(TOP)/../wrapper/libvmaf.a
+LIBVMAF = $(TOP)/../wrapper/libvmaf.so
 
 CFLAGS_COMMON = -g -O3 -fPIC -w -Wextra -pedantic
 # CFLAGS_COMMON = -g -O0 -fPIC -Wall -Wextra -pedantic