Put some dir locations in rc.h so that 3rd party apps can become awware of them.

src/librc/.gitignore

@@ -13,3 +13,4 @@ librc.a
 librc.so.1
 librc.so
 .depend
+rc.h

src/librc/Makefile

@@ -5,8 +5,6 @@ SRCS=		librc.c librc-daemon.c librc-depend.c librc-misc.c \
 INCS=		rc.h
 VERSION_MAP=	rc.map
 
-CFLAGS+=	-DLIB=\"${LIBNAME}\"
-CFLAGS+=	-DSYSCONFDIR=\"${SYSCONFDIR}\"
 LDADD+=		${LIBKVM}
 
 CFLAGS+=	-I../includes
@@ -15,3 +13,30 @@ MK=		../../mk
 include ${MK}/lib.mk
 include ${MK}/cc.mk
 include ${MK}/debug.mk
+
+# Massage our header file for our dirs
+SED_CMD=	-e 's:@PREFIX@:${PREFIX}:g'
+SED_CMD+=	-e 's:@LIB@:${LIBNAME}:g'
+SED_CMD+=	-e 's:@SYSCONFDIR@:${SYSCONFDIR}:g'
+_PKG_PREFIX_SH=	if test -n "${PKG_PREFIX}" && test "${PKG_PREFIX}" != "/" && test "${PKG_PREFIX}" != "${PREFIX}"; then \
+		echo "-e 's:@PKG_PREFIX@:${PKG_PREFIX}:g'"; \
+		else \
+		echo "-e 's:.*@PKG_PREFIX@.*:\#undef RC_PKG_PREFIX:g'"; \
+		fi
+_PKG_PREFIX!=	${_PKG_PREFIX_SH}
+SED_CMD+=	${_PKG_PREFIX}$(shell ${_PKG_PREFIX_SH})
+
+_LCL_PREFIX_SH=	if test -n "${LOCAL_PREFIX}" && test "${LOCAL_PREFIX}" != "/" && test "${LOCAL_PREFIX}" != "${PREFIX}"; then \
+		echo "-e 's:@LOCAL_PREFIX@:${LOCAL_PREFIX}:g'"; \
+		else \
+		echo "-e 's:@LOCAL_PREFIX@::g'"; \
+		fi
+_LCL_PREFIX!=	${_LCL_PREFIX_SH}
+SED_CMD+=	${_LCL_PREFIX}$(shell ${_LCL_PREFIX_SH})
+
+.SUFFIXES:	.h.in
+.h.in.h:
+	${SED} ${SED_CMD} $< > $@
+${SRCS}:	rc.h
+
+CLEANFILES+=	rc.h

src/librc/rc.h.in

@@ -32,6 +32,31 @@
 #include <stdbool.h>
 #include <stdio.h>
 
+#define RC_SYSCONFDIR		"@SYSCONFDIR@"
+#define RC_LIBDIR               "@PREFIX@/@LIB@/rc"
+#define RC_SVCDIR               RC_LIBDIR "/init.d"
+#define RC_PLUGINDIR            RC_LIBDIR "/plugins"
+#define RC_RUNLEVELDIR          RC_SYSCONFDIR "/runlevels"
+#define RC_INITDIR              RC_SYSCONFDIR "/init.d"
+#define RC_CONFDIR              RC_SYSCONFDIR "/conf.d"
+
+/* PKG_PREFIX is where packages are installed if different from the base OS
+ * On Gentoo this is normally unset, on FreeBSD /usr/local and on NetBSD
+ * /usr/pkg. */
+#define RC_PKG_PREFIX		"@PKG_PREFIX@"
+#ifdef RC_PKG_PREFIX
+#  define RC_PKG_INITDIR        RC_PKG_PREFIX "/etc/init.d"
+#  define RC_PKG_CONFDIR        RC_PKG_PREFIX "/etc/conf.d"
+#endif
+
+/* LOCAL_PREFIX is for user written stuff, which the base OS and package
+ * manger don't touch. */
+#define RC_LOCAL_PREFIX		"@LOCAL_PREFIX@"
+#ifdef RC_LOCAL_PREFIX
+#  define RC_LOCAL_INITDIR      RC_LOCAL_PREFIX "/etc/init.d"
+#  define RC_LOCAL_CONFDIR      RC_LOCAL_PREFIX "/etc/conf.d"
+#endif
+
 /* A doubly linked list using queue(3) for ease of use */
 typedef struct rc_string {
 	char *value;