Fixed bug 5399 - make install is broken as it depends on missing rule `build`

Stephen Broadfoot

I've tracked this down to the following changeset bb65ba8e039b

https://hg.libsdl.org/SDL/diff/bb65ba8e039b/Makefile.in

this changeset renames the rule `build` to `build/.created` but the rule `install-lib` still depends on the rule `build`

This affects users who are trying to install via homebrew who are installing via source and not by the bottle as this invokes `make install`

To be clear, the error I was hitting when running make install is

make: *** No rule to make target `build', needed by `install-lib'.  Stop.

Makefile.in

@@ -178,7 +178,7 @@ install-hdrs: update-revision
 	    $(INSTALL) -m 644 $(srcdir)/include/SDL_revision.h $(DESTDIR)$(includedir)/SDL2/SDL_revision.h; \
 	fi
 
-install-lib: $(objects) $(objects)/$(TARGET) $(objects)/$(SDLMAIN_TARGET) $(objects)/$(SDLTEST_TARGET)
+install-lib: $(objects)/$(TARGET) $(objects)/$(SDLMAIN_TARGET) $(objects)/$(SDLTEST_TARGET)
 	$(SHELL) $(auxdir)/mkinstalldirs $(DESTDIR)$(libdir)
 	$(LIBTOOL) --mode=install $(INSTALL) $(objects)/$(TARGET) $(DESTDIR)$(libdir)/$(TARGET)
 	$(LIBTOOL) --mode=install $(INSTALL) $(objects)/$(SDLMAIN_TARGET) $(DESTDIR)$(libdir)/$(SDLMAIN_TARGET)