Re: Using "make -d l" makes buildworld to fail

From: Harti Brandt (hartmut.brandt_at_dlr.de)
Date: 09/30/05

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    Date: Fri, 30 Sep 2005 12:47:52 +0200 (CEST)
To: Ruslan Ermilov <ru@freebsd.org>

    On Mon, 5 Sep 2005, Ruslan Ermilov wrote:

    RE>On Mon, Sep 05, 2005 at 05:05:47PM +0200, Harti Brandt wrote:
    RE>> On Thu, 4 Aug 2005, Ruslan Ermilov wrote:
    RE>>
    RE>> RE>On Thu, Jul 28, 2005 at 08:14:15PM +0200, Jeremie Le Hen wrote:
    RE>> RE>> Hi,
    RE>> RE>>
    RE>> RE>> I have to run multiple buildworlds with and without debugging ("-d l")
    RE>> RE>> these last days. I was nearly turning mad while I realized that
    RE>> RE>> buildworld would fail in "rescue" when using "-d l" make option.
    RE>> RE>>
    RE>> RE>> Both typescripts with and without the debugging option are available :
    RE>> RE>> http://jeremie.le-hen.org/~tataz/make_-d_l_buildworld.gz (ko)
    RE>> RE>> http://jeremie.le-hen.org/~tataz/make_buildworld.gz (ok)
    RE>> RE>>
    RE>> RE>> This is not the stock source tree, but I checked on a non-modified
    RE>> RE>> tree and the behaviour is the same.
    RE>> RE>>
    RE>> RE>crunchgen(1) is broken: it generates a makefile to find a
    RE>> RE>list of object files for a given program, then calls it,
    RE>> RE>parses the output, and expects it to start with the line
    RE>> RE>"OBJS=". If something is passed in the MAKEFLAGS environment
    RE>> RE>variable, like -Dl, things are really screwed.
    RE>>
    RE>> Couldn't we make crunchgen just to ignore lines that don't start with
    RE>> OBJS=? Or we could finally make make(1) to spit debug output on stderr.
    RE>>
    RE>The latter would be great, and would fix the problem in question.

    I had a look at this but it appears make(1) already prints it's debugging
    information on stderr. The only exception is -dl which prints commands
    even when they are prefixed with @. I would actually expect make(1) to
    behave this way. So I suppose we should find a solution for this problem
    in crunchgen.

    harti
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