add -version-info to libtool invocation so the library gets a proper
name.

Index: src/Makefile.am
--- src/Makefile.am.orig
+++ src/Makefile.am
@@ -25,7 +25,7 @@ endif
 
 # libLÖVE
 lib_LTLIBRARIES = liblove.la
-liblove_la_LDFLAGS = -module -export-dynamic $(LDFLAGS) -release $(PACKAGE_VERSION)
+liblove_la_LDFLAGS = -module -export-dynamic $(LDFLAGS) -release $(PACKAGE_VERSION) -version-info 0:0:0
 liblove_la_LIBADD = 	$(SDL_LIBS) $(freetype2_LIBS) $(lua_LIBS)	$(openal_LIBS) $(zlib_LIBS) $(libmodplug_LIBS)	$(vorbisfile_LIBS) $(theora_LIBS)
 
 liblove_la_SOURCES = \
