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Re: Autoconf - adding LEX header file option
From: |
augustk |
Subject: |
Re: Autoconf - adding LEX header file option |
Date: |
Mon, 21 Sep 2009 08:06:54 -0700 (PDT) |
User-agent: |
G2/1.0 |
On 21 Sep, 14:06, augustk <fusionf...@gmail.com> wrote:
> With the option `header-file', FLEX can create a header file, lex.h,
> from the LEX specification, lex.l. What I don't know, however, is
> where I should put this option in the context of Autoconf/Automake.
> Any clues?
Adding the following lines to Makefile.am seems to do the trick:
BUILT_SOURCES = lex.h
CLEANFILES = lex.h
lex.h: lex.l
$(LEX) --header-file=$@ -o /dev/null $<
I think it should be possible to get the same result with the more
concise
AM_LFLAGS = --header-file=lex.h -o /dev/null lex.l
but that doesn't work for me.