patch by (Volker Moell <volker-ml at die-moells dot de>)

creating $(prefix)/bin and $(prefix)/lib
  improved linking libavcodec.so -> libavcodec-$(VERSION).so
  ldconfig does not rise an error on not beeing root when installing

Originally committed as revision 852 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -60,6 +60,7 @@ ffplay: ffmpeg$(EXE)
 
 install: all
 	$(MAKE) -C libavcodec install
+	install -d $(prefix)/bin
 	install -s -m 755 $(PROG) $(prefix)/bin
 	ln -sf ffmpeg $(prefix)/bin/ffplay 
 

libavcodec/Makefile

@@ -134,9 +134,10 @@ motion-test: motion_test.o $(LIB)
 
 install: all
 ifeq ($(BUILD_SHARED),yes)
+	install -d $(prefix)/lib
 	install -s -m 755 $(SLIB) $(prefix)/lib/libavcodec-$(VERSION).so
-	ln -sf $(prefix)/lib/libavcodec-$(VERSION).so $(prefix)/lib/libavcodec.so
-	ldconfig
+	ln -sf libavcodec-$(VERSION).so $(prefix)/lib/libavcodec.so
+	ldconfig || true
 	mkdir -p $(prefix)/include/ffmpeg
 	install -m 644 avcodec.h $(prefix)/include/ffmpeg/avcodec.h
 	install -m 644 common.h $(prefix)/include/ffmpeg/common.h