Makefile: use implicit rules for install/dracut-install

Don't fail on install rule if install/dracut-install is not build - just
skip it.  $(strip) is not used by install rule, because it is nowhere
set.

diff --git a/Makefile b/Makefile
index a109ef0ec78af3fc65886ef12bf1110660dd984b..d013cbc6c9a6225b5d948edbcd1229c05d444e97 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,8 @@ pkglibdir ?= ${libdir}/dracut
 sysconfdir ?= ${prefix}/etc
 bindir ?= ${prefix}/bin
 mandir ?= ${prefix}/share/man
-CFLAGS ?= -std=gnu99 -O2 -g -Wall
+CFLAGS ?= -O2 -g -Wall
+CFLAGS += -std=gnu99
 
 man1pages = lsinitrd.1
 
@@ -32,22 +33,17 @@ manpages = $(man1pages) $(man5pages) $(man7pages) $(man8pages)
 
 .PHONY: install clean archive rpm testimage test all check AUTHORS doc
 
-all: syncheck dracut-version.sh dracut-install
+DRACUT_INSTALL_BIN = install/dracut-install
 
-DRACUT_INSTALL_SOURCE = \
-        install/dracut-install.c \
-        install/hashmap.c\
-        install/log.c \
-        install/util.c
+DRACUT_INSTALL_OBJECTS = \
+        install/dracut-install.o \
+        install/hashmap.o\
+        install/log.o \
+        install/util.o
 
-DRACUT_INSTALL_HEADER = \
-        install/hashmap.h \
-        install/log.h \
-        install/macro.h \
-        install/util.h
+all: syncheck dracut-version.sh $(DRACUT_INSTALL_BIN)
 
-dracut-install: $(DRACUT_INSTALL_SOURCE) $(DRACUT_INSTALL_HEADER)
-       gcc $(CFLAGS) -o dracut-install $(DRACUT_INSTALL_SOURCE)
+$(DRACUT_INSTALL_BIN): $(DRACUT_INSTALL_OBJECTS)
 
 indent:
        indent -i8 -nut -br -linux -l120 install/dracut-install.c
@@ -99,7 +95,9 @@ install: doc dracut-version.sh
                ln -s ../dracut-shutdown.service \
                $(DESTDIR)$(systemdsystemunitdir)/shutdown.target.wants/dracut-shutdown.service; \
        fi
-       install $(strip) -m 0755 dracut-install $(DESTDIR)$(pkglibdir)/dracut-install
+       if [ -x $(DRACUT_INSTALL_BIN) ]; then \
+               install -m 0755 $(DRACUT_INSTALL_BIN) $(DESTDIR)$(pkglibdir)/dracut-install; \
+       fi
 
 dracut-version.sh:
        @echo "DRACUT_VERSION=$(VERSION)-$(GITVERSION)" > dracut-version.sh
@@ -110,7 +108,7 @@ clean:
        $(RM) */*/*~
        $(RM) test-*.img
        $(RM) dracut-*.rpm dracut-*.tar.bz2
-       $(RM) dracut-install
+       $(RM) $(DRACUT_INSTALL_BIN) $(DRACUT_INSTALL_OBJECTS)
        $(RM) $(manpages) dracut.html
        $(MAKE) -C test clean