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-rw-r--r--man/runscript.83
-rw-r--r--src/librc/rc.h.in1
-rw-r--r--src/rc/rc-misc.c4
3 files changed, 8 insertions, 0 deletions
diff --git a/man/runscript.8 b/man/runscript.8
index ef55de35..b87f8ef3 100644
--- a/man/runscript.8
+++ b/man/runscript.8
@@ -352,6 +352,9 @@ Default runlevel chosen. Default is default.
.It Va RC_SYS
A special variable to describe the system more.
Possible values are OPENVZ, XENU, XEN0, UML and VSERVER.
+.It Va RC_PREFIX
+In a Gentoo Prefix installation, this variable contains the prefix
+offset. Otherwise it is undefined.
.It Va RC_UNAME
The result of `uname -s`.
.El
diff --git a/src/librc/rc.h.in b/src/librc/rc.h.in
index e4cb60dd..32dbef08 100644
--- a/src/librc/rc.h.in
+++ b/src/librc/rc.h.in
@@ -33,6 +33,7 @@
__BEGIN_DECLS
+#define RC_PREFIX "@PREFIX@"
#define RC_SYSCONFDIR "@SYSCONFDIR@"
#define RC_LIBDIR "@PREFIX@/@LIB@/rc"
#define RC_LIBEXECDIR "@LIBEXECDIR@"
diff --git a/src/rc/rc-misc.c b/src/rc/rc-misc.c
index 27397d71..e8f6ca6e 100644
--- a/src/rc/rc-misc.c
+++ b/src/rc/rc-misc.c
@@ -191,6 +191,10 @@ env_config(void)
if (sys)
setenv("RC_SYS", sys, 1);
+#ifdef PREFIX
+ setenv("RC_PREFIX", RC_PREFIX, 1);
+#endif
+
/* Some scripts may need to take a different code path if
Linux/FreeBSD, etc
To save on calling uname, we store it in an environment variable */