Makefile.am:
EXTRA_DIST += alloca_.h
-# The following is needed in order to create an <alloca.h> when the system
+# We need the following in order to create an <alloca.h> when the system
# doesn't have one that works with the given compiler.
all-local $(lib_OBJECTS): @ALLOCA_H@
alloca.h: alloca_.h