add prereq check to prevent people from building openwrt as root

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4655 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/include/prereq-build.mk b/include/prereq-build.mk
index a6de9b2..e90c315 100644 (file)
--- a/include/prereq-build.mk
+++ b/include/prereq-build.mk
@@ -8,6 +8,13 @@
 include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/prereq.mk
 
+define Require/non-root
+       [ "$$(shell whoami)" != "root" ]
+endef
+$(eval $(call Require,non-root, \
+       Building OpenWrt as root is not supported! \
+))
+
 # Required for the toolchain
 define Require/working-make
        echo 'all: test' > $(TMP_DIR)/check.mk