Overhaul build system and add support for disabling inetd support.

This patch adds support for a configure script and with it
support for disabling inetd support.  See the output from

    ./configure --help

* Add configure script
* Sprinkle #ifdef fairy dust on svc.c when inetd support is disabled
* Use GCC built-in autodep calculator (-MMD -MP)
* Fix name space issue with include files, use relative paths
* Disable username/group name to uid/gid functions in static builds
* Bug out (error) if a user tries to build the bootmisc plugin static

Possibly fixes GitHub issue #5 and issue #6.

NOTE: The static build has not received any testing at all!

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

plugins/Makefile

@@ -1,24 +1,23 @@
 # Plugin based services architecture for finit
-CFLAGS     += -fPIC -Os
-CPPFLAGS   += -I..
+TOPDIR     ?= $(shell pwd)
+CFLAGS     += -fPIC
 LDFLAGS    := $(filter-out -rdynamic, $(LDFLAGS))
 LDFLAGS    += -shared
 ifneq ($(STATIC), 1)
 PLUGINS    ?= initctl.so alsa-utils.so bootmisc.so dbus.so hwclock.so \
 	      resolvconf.so urandom.so x11-common.so tty.so time.so
-DEPS        = $(addprefix .,$(PLUGINS:.so=.d))
+DEPS       := $(PLUGINS:.so=.d)
 endif
-TOPDIR     ?= $(shell pwd)
 
 include ../common.mk
 
 all: $(PLUGINS)
 
 clean:
-	-@$(RM) $(PLUGINS) *.o
+	-@$(RM) $(PLUGINS)
 
-distclean: clean
-	-@$(RM) $(JUNK) $(DEPS)
+distclean:
+	-@$(RM) *.o *.so $(JUNK) $(DEPS)
 
 install: all
 	@install -d $(DESTDIR)$(plugindir)
@@ -34,6 +33,6 @@ uninstall:
 	done
 	-@rmdir $(DESTDIR)$(plugindir) 2>/dev/null
 
-ifneq ($(MAKECMDGOALS),clean)
- -include $(DEPS)
+ifneq ($(MAKECMDGOALS),distclean)
+-include $(DEPS)
 endif

plugins/alsa-utils.c

@@ -21,9 +21,9 @@
  * THE SOFTWARE.
  */
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
 
 static void save(void *UNUSED(arg))
 {

plugins/bootmisc.c

@@ -24,9 +24,13 @@
 #include <string.h>
 #include <utmp.h>
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
+
+#ifdef ENABLE_STATIC
+#error This plugin uses getuser(), which relies on dynamically linked GLIBC.  Cannot be built statically!
+#endif
 
 /*
  * Setup standard FHS 2.3 structure in /var, and

plugins/dbus.c

@@ -21,9 +21,9 @@
  * THE SOFTWARE.
  */
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
 
 static void setup(void *UNUSED(arg))
 {

plugins/hwclock.c

@@ -21,9 +21,9 @@
  * THE SOFTWARE.
  */
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
 
 static void save(void *UNUSED(arg))
 {

plugins/initctl.c

@@ -29,10 +29,10 @@
 #include <unistd.h>		/* read() */
 #include <sys/stat.h>
 
-#include "helpers.h"
-#include "plugin.h"
-#include "sig.h"
-#include "finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
+#include "../sig.h"
+#include "../finit.h"
 
 static void parse(void *arg, int fd, int events);
 

plugins/resolvconf.c

@@ -21,9 +21,9 @@
  * THE SOFTWARE.
  */
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
 
 static void setup(void *UNUSED(arg))
 {

plugins/time.c

@@ -26,7 +26,7 @@
 #include <unistd.h>		/* STDIN_FILENO */
 #include <sys/socket.h>
 
-#include "plugin.h"
+#include "../plugin.h"
 
 /* UNIX epoch starts midnight, 1st Jan, 1970 */
 #define EPOCH_OFFSET 2208988800ULL

plugins/tty.c

@@ -28,10 +28,10 @@
 #include <sys/inotify.h>
 #include <sys/stat.h>
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
-#include "tty.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
+#include "../tty.h"
 
 static void watcher(void *arg, int fd, int events);
 

plugins/urandom.c

@@ -25,10 +25,10 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 
-#include "finit.h"
+#include "../finit.h"
 #include "libite/lite.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../helpers.h"
+#include "../plugin.h"
 
 static void setup(void *UNUSED(arg))
 {

plugins/x11-common.c

@@ -25,9 +25,9 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 
-#include "finit.h"
-#include "helpers.h"
-#include "plugin.h"
+#include "../finit.h"
+#include "../helpers.h"
+#include "../plugin.h"
 
 static void setup(void *UNUSED(arg))
 {