Fix-configure.ac: define PREFIX in config.h

PREFIX was never defined and therefore set to the
default value `/opt/collectd`. collectd searched in
this path for desired files e.g. typesdb, plugins, etc
no matter if it was configured with `--prefix`.

Signed-off-by: lns <matzeton@googlemail.com>
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

diff --git a/configure.ac b/configure.ac
index dd53ac5d3ce92a3ddada52ea532b53f3e28c7e50..1737aff316ee16c3eccb347dbd604b1ee3512aed 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -145,6 +145,10 @@ if test "x$ac_system" = "xAIX"; then
   AC_DEFINE([_THREAD_SAFE_ERRNO], [1], [Define to use the thread-safe version of errno under AIX.])
 fi
 
+if test "x${prefix}" != xNONE; then
+  AC_DEFINE_UNQUOTED([PREFIX], ["${prefix}"], [Define the install prefix.])
+fi
+
 # Where to install .pc files.
 pkgconfigdir="${libdir}/pkgconfig"
 AC_SUBST([pkgconfigdir])