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Re: How do you add an executable command into automake

From: Stepan Kasal
Subject: Re: How do you add an executable command into automake
Date: Wed, 8 Nov 2006 16:34:50 +0100
User-agent: Mutt/


On Wed, Nov 08, 2006 at 10:00:45AM -0500, Jeff Safier wrote:
> We have a message parser that generates a header file which
> is included in the actual source file.

then you have to write a standard make rule for the header.  The rule
will get copied from to and Makefile, as
discussed in the other thread.

To ensure that the header is generated before the build starts, add
it to BUILT_SOURCES.   An example:

foo.h: foo.input
        message_parser foo.input >$@

See also

In the other thread,
On Wed, Nov 08, 2006 at 10:13:12AM -0500, Pat Suwalski suggested:
> main.c: generatedheader.h

to ensure that the header gets built.  But this is not healthy:

First, if main.c is not touched, it will stay older than the header,
and thus generatedheader.h, main.o, and the application will be
rebuilt on a subsequent run of `make', eg. during `sudo make install'.

Second, I suppose that main.c is distributed and generatedheader.h is
not.  But distributed files are not allowed to depend on
non-distributed ones.

In short, do not do this.

Have a nice day,
        Stepan Kasal

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