set QT_TARGET_ARCH when building for the host

the built host tool may need to know what the target architecture is,
e.g. mkv8snapshot does.

Change-Id: Ie5b1f6a07fa082d212e7c5b54289de49fd74dbcf
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index 2f64fa9c18..43bbe6668b 100755
--- a/configure
+++ b/configure
@@ -6524,6 +6524,7 @@ cat >>"$QTCONFIG.tmp" <<EOF
 CONFIG += $QTCONFIG_CONFIG
 host_build {
     QT_ARCH = $CFG_HOST_ARCH
+    QT_TARGET_ARCH = $CFG_ARCH
 } else {
     QT_ARCH = $CFG_ARCH
     QMAKE_DEFAULT_LIBDIRS = $DEFAULT_LIBDIRS