Makefile: Split INSTALL out into INSTALL_{PROGRAM,LIB,DATA,SCRIPT}

For adoption into systems that may have additional arguments to be passed into
install(1) upon install, split out INSTALL into the different types of files to
be installed and use them appropriately. This allows, for instance, passing -s
to strip binaries and libs while not botching directory installs or data/script
installations.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

Makefile

@@ -26,6 +26,10 @@ SWIG = swig
 PKG_CONFIG ?= pkg-config
 
 INSTALL = /usr/bin/install
+INSTALL_PROGRAM = $(INSTALL)
+INSTALL_LIB = $(INSTALL)
+INSTALL_DATA = $(INSTALL) -m 644
+INSTALL_SCRIPT = $(INSTALL)
 DESTDIR =
 PREFIX = $(HOME)
 BINDIR = $(PREFIX)/bin
@@ -191,20 +195,21 @@ endif
 install-bin: all $(SCRIPTS)
 	@$(VECHO) INSTALL-BIN
 	$(INSTALL) -d $(DESTDIR)$(BINDIR)
-	$(INSTALL) $(BIN) $(SCRIPTS) $(DESTDIR)$(BINDIR)
+	$(INSTALL_PROGRAM) $(BIN) $(DESTDIR)$(BINDIR)
+	$(INSTALL_SCRIPT) $(SCRIPTS) $(DESTDIR)$(BINDIR)
 
 install-lib: all
 	@$(VECHO) INSTALL-LIB
 	$(INSTALL) -d $(DESTDIR)$(LIBDIR)
-	$(INSTALL) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
+	$(INSTALL_LIB) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
 	ln -sf $(notdir $(LIBFDT_lib)) $(DESTDIR)$(LIBDIR)/$(LIBFDT_soname)
 	ln -sf $(LIBFDT_soname) $(DESTDIR)$(LIBDIR)/libfdt.$(SHAREDLIB_EXT)
-	$(INSTALL) -m 644 $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
+	$(INSTALL_DATA) $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
 
 install-includes:
 	@$(VECHO) INSTALL-INC
 	$(INSTALL) -d $(DESTDIR)$(INCLUDEDIR)
-	$(INSTALL) -m 644 $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
+	$(INSTALL_DATA) $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
 
 install: install-bin install-lib install-includes