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-rw-r--r--docs/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/Makefile b/docs/Makefile
index 9b51adb20d..74eb955819 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -15,6 +15,10 @@ install-docs :: $(PAGE)
.PHONY: binary-dist binary-dist.doc.%
binary-dist: $(foreach SUBDIR,$(SUBDIRS),binary-dist.doc.$(SUBDIR))
+ifeq "$(WHERE_AM_I)" ""
+ echo "I don't know where I am" >&2
+ exit 1
+endif
echo $(WHERE_AM_I)/Makefile >> $(BIN_DIST_LIST)
echo $(WHERE_AM_I)/$(PAGE) >> $(BIN_DIST_LIST)