[OE-core] [PATCH V2] defaultsetup: Use .= to add TCLIBCAPPEND to TMPDIR

[Khem Raj]

From: Daniel Lazzari <dlazzari at leapfrog.com>

Lazily appending causes a bug where wrong cache is
cleared when BB_SRCREV_POLICY = "clear".

Tested with qemuarm on uclibc/eglibc in same build dir

Signed-off-by: Daniel Lazzari Jr <dlazzari at leapfrog.com>
Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 meta/conf/distro/defaultsetup.conf |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/meta/conf/distro/defaultsetup.conf b/meta/conf/distro/defaultsetup.conf
index 919ed00..1a29778 100644
--- a/meta/conf/distro/defaultsetup.conf
+++ b/meta/conf/distro/defaultsetup.conf
@@ -11,7 +11,7 @@ require conf/distro/include/tclibc-${TCLIBC}.inc
 
 # Allow single libc distros to disable this code
 TCLIBCAPPEND ?= "-${TCLIBC}"
-TMPDIR_append = "${TCLIBCAPPEND}"
+TMPDIR .= "${TCLIBCAPPEND}"
 
 CACHE = "${TMPDIR}/cache/${TCMODE}-${TCLIBC}${@['', '/' + str(bb.data.getVar('MACHINE', d, 1))][bool(bb.data.getVar('MACHINE', d, 1))]}${@['', '/' + str(bb.data.getVar('SDKMACHINE', d, 1))][bool(bb.data.getVar('SDKMACHINE', d, 1))]}"
 
-- 
1.7.4.1