* Makefile, configure, */*.mk, builds/unix/unix-def.in,
docs/CHANGES, docs/INSTALL: s/TOP/TOP_DIR/.
diff --git a/Makefile b/Makefile
index 04881c0..e1fbdf2 100644
--- a/Makefile
+++ b/Makefile
@@ -20,13 +20,13 @@
USE_MODULES := 1
-# The variable TOP holds the path to the topmost directory in the project
+# The variable TOP_DIR holds the path to the topmost directory in the project
# engine source hierarchy. If it is not defined, default it to `.'.
#
-ifndef TOP
- TOP := .
+ifndef TOP_DIR
+ TOP_DIR := .
endif
-include $(TOP)/builds/toplevel.mk
+include $(TOP_DIR)/builds/toplevel.mk
# EOF