Use install command instead of CHMOD, CP, and MKDIR.

Drop all POSTBUILD stuff as it is no longer used.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5663 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

Makefile

@@ -38,8 +38,7 @@ all: makeinclude
 install: makeinclude
 	-mkdir -p $(DESTDIR)$(bindir)
 	$(RM) $(DESTDIR)$(bindir)/fltk-config
-	-cp fltk-config $(DESTDIR)$(bindir)
-	-chmod 755 $(DESTDIR)$(bindir)/fltk-config
+	$(INSTALL_SCRIPT) fltk-config $(DESTDIR)$(bindir)
 	for dir in FL $(DIRS); do\
 		echo "=== installing $$dir ===";\
 		(cd $$dir; $(MAKE) $(MFLAGS) install) || exit 1;\