linux buildconfig: Fix quoting error

Prevent shell syntax error if $(XEN_LINUX_CONFIG) is empty.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

diff --git a/buildconfigs/mk.linux-2.6-common b/buildconfigs/mk.linux-2.6-common
index 6f203eff3a0ed9bf08d618441fe713e89154e98d..f3680f0982fa9a6ff656657b5949792cfa7c8170 100644 (file)
--- a/buildconfigs/mk.linux-2.6-common
+++ b/buildconfigs/mk.linux-2.6-common
@@ -75,7 +75,7 @@ $(LINUX_DIR)/include/linux/autoconf.h: $(LINUX_SRCDIR)/.valid-src
        # tree. Finally attempt to use make defconfig.
        set -e ; \
        CONFIG_VERSION=$$(sed -ne 's/$$(XENGUEST)//; s/^EXTRAVERSION = //p' $(LINUX_SRCDIR)/Makefile); \
-       if [ ! -z "$(XEN_LINUX_CONFIG)" -a -r $(XEN_LINUX_CONFIG) ]; then \
+       if [ ! -z "$(XEN_LINUX_CONFIG)" -a -r "$(XEN_LINUX_CONFIG)" ]; then \
          cp $(XEN_LINUX_CONFIG) $(CONFIG_FILE); \
        elif [ -r $(DESTDIR)/boot/config-$(LINUX_VER3)$$CONFIG_VERSION$(EXTRAVERSION) ] ; then \
          cp $(DESTDIR)/boot/config-$(LINUX_VER3)$$CONFIG_VERSION$(EXTRAVERSION) $(CONFIG_FILE) ; \