infra: replace BUILDROOT_DL_DIR with BR2_DL_DIR.

[buildroot-mgba.git] / Makefile.legacy

diff --git a/Makefile.legacy b/Makefile.legacy
index e0b7ec29c46ec2f92d7ee049865c216f0111e316..4954398c5a24d3ebc6d0fe82a1c22f2bf068963d 100644 (file)
--- a/Makefile.legacy
+++ b/Makefile.legacy
@@ -12,6 +12,22 @@ ifeq ($(BR2_LEGACY),y)
 $(error "You have legacy configuration in your .config! Please check your configuration.")
 endif
 
+#
+# Legacy options from 2014.02
+#
+
+# The BUILDROOT_DL_DIR environment variable was renamed by BR2_DL_DIR. We
+# want to detect someone using the old variable, _except_ if also the new
+# variable was set. By the time we get here, however, we no longer have
+# access to the BR2_DL_DIR environment variable (because it has been overridden
+# by the .config inclusion). However, the environment variable (if defined) was
+# saved in DL_DIR, so we can use that.
+ifneq ($(BUILDROOT_DL_DIR),)
+ifneq ($(BUILDROOT_DL_DIR),$(DL_DIR))
+$(error "The BUILDROOT_DL_DIR environment variable was renamed to BR2_DL_DIR.")
+endif
+endif
+
 #
 # Legacy options from 2012.08
 #