iperf: pass in target path vars

(From OE-Core rev: accbcea94091800a90df0f5141990c110ff35ee5)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>

the patch was imported from meta-mentor layer on yoctoproject git server
http://git.yoctoproject.org/cgit/cgit.cgi/meta-mentor as of commit id
71748b54694f4ffe2d598da71f641969df1417c0

slightly modified the patch to apply it on .bb file instead of .bbappend

Signed-off-by: Fahad Usman <fahad_usman@mentor.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-kernel/perf/perf_3.4.bb

@@ -73,6 +73,17 @@ EXTRA_OEMAKE = \
 EXTRA_OEMAKE += "\
 	'CFLAGS=${CFLAGS}' \
 	'LDFLAGS=${LDFLAGS} -lpthread -lrt -lelf -lm -lbfd' \
+	\
+	'prefix=${prefix}' \
+	'bindir=${bindir}' \
+	'sharedir=${datadir}' \
+	'sysconfdir=${sysconfdir}' \
+	'perfexecdir=${libexecdir}/perf-core' \
+	\
+	'ETC_PERFCONFIG=${@oe.path.relative(prefix, sysconfdir)}' \
+	'sharedir=${@oe.path.relative(prefix, datadir)}' \
+	'mandir=${@oe.path.relative(prefix, mandir)}' \
+	'infodir=${@oe.path.relative(prefix, infodir)}' \
 "
 
 do_compile() {