Makefile.am:
EXTRA_DIST += stdbool_.h
-# The following is needed in order to create an <stdbool.h> when the system
+# We need the following in order to create an <stdbool.h> when the system
# doesn't have one that works.
all-local $(lib_OBJECTS): $(STDBOOL_H)
stdbool.h: stdbool_.h