conf: Set default global/etc from --with-confdir.

conf/example.conf.in

@@ -565,6 +565,9 @@ global {
     # Defaults to "lvm2".
     # format = "lvm2"
 
+    # Location of /etc system configuration directory.
+    etc = "@CONFDIR@"
+
     # Location of proc filesystem
     proc = "/proc"
 

configure

@@ -12260,6 +12260,11 @@ else
 fi
 
 
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_ETC_DIR "$CONFDIR"
+_ACEOF
+
+
 
 # Check whether --with-staticdir was given.
 if test "${with_staticdir+set}" = set; then :

configure.in

@@ -1452,6 +1452,8 @@ AC_ARG_WITH(confdir,
 	    AC_HELP_STRING([--with-confdir=DIR],
 			   [configuration files in DIR [/etc]]),
 	    CONFDIR=$withval, CONFDIR='/etc')
+AC_DEFINE_UNQUOTED(DEFAULT_ETC_DIR, ["$CONFDIR"],
+		   [Default system configuration directory.])
 
 AC_ARG_WITH(staticdir,
 	    AC_HELP_STRING([--with-staticdir=DIR],

lib/config/defaults.h

@@ -29,7 +29,6 @@
 
 #define DEFAULT_DEV_DIR "/dev"
 #define DEFAULT_PROC_DIR "/proc"
-#define DEFAULT_ETC_DIR "/etc"
 #define DEFAULT_OBTAIN_DEVICE_LIST_FROM_UDEV 1
 #define DEFAULT_EXTERNAL_DEVICE_INFO_SOURCE "none"
 #define DEFAULT_SYSFS_SCAN 1

lib/misc/configure.h.in

@@ -65,6 +65,9 @@
 /* Default DM run directory. */
 #undef DEFAULT_DM_RUN_DIR
 
+/* Default system configuration directory. */
+#undef DEFAULT_ETC_DIR
+
 /* Name of default locking directory. */
 #undef DEFAULT_LOCK_DIR