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Re: Bug in AX_APPEND_LINK_FLAGS
From: |
Mike Frysinger |
Subject: |
Re: Bug in AX_APPEND_LINK_FLAGS |
Date: |
Wed, 1 Jan 2014 12:59:15 -0500 |
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KMail/1.13.7 (Linux/3.12.1; KDE/4.6.5; x86_64; ; ) |
On Wednesday 01 January 2014 12:34:20 Peter Simons wrote:
> Hi Mike,
>
> you submitted the following patch to AX_APPEND_LINK_FLAGS a while ago:
>
>
> http://git.savannah.gnu.org/cgit/autoconf-archive.git/commit/m4/ax_append_
> link_flags.m4?id=7d5e9315f7b93843f7d65699eebfec742323a483
>
> Now, Peter De Wachter reports the following phenomenon:
> > If you do something like:
> > AX_APPEND_LINK_FLAGS([--foo])
> >
> > configure prints a bogus extra line:
> > checking whether the linker accepts ... yes
> > checking whether the linker accepts --foo... yes
> >
> > This bug is introduced by commit 7d5e9315: serial 3 (the current
> > version) has this bug, serial 2 not.
>
> Do you, by any chance, have an idea how to explain and/or remedy this
> behavior?
blah, it's because i misused the AC_REQUIRE helper. it not only makes sure
the func is available, but then also calls it. i don't know of a way to get
the desired behavior (an m4 error when the macro isn't available) other than
AC_REQUIRE.
so the options are:
- have AX_APPEND_FLAG do nothing when $1 is not set
- revert my change
-mike
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- Re: Bug in AX_APPEND_LINK_FLAGS, Peter Simons, 2014/01/01
- Re: Bug in AX_APPEND_LINK_FLAGS,
Mike Frysinger <=
- Re: Bug in AX_APPEND_LINK_FLAGS, Peter Johansson, 2014/01/01
- Re: Bug in AX_APPEND_LINK_FLAGS, Mike Frysinger, 2014/01/02
- Re: Bug in AX_APPEND_LINK_FLAGS, Peter Johansson, 2014/01/02
- Re: Bug in AX_APPEND_LINK_FLAGS, Mike Frysinger, 2014/01/03
- Re: Bug in AX_APPEND_LINK_FLAGS, Peter Simons, 2014/01/11
- Re: Bug in AX_APPEND_LINK_FLAGS, Mike Frysinger, 2014/01/14