Re: [PATCH] config.mak.in: continue fixing NEEDS_LIBGEN autoconfigure feature

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Junio,

I see you squashed this and applied it to master (a1142892), but
since my email was not clear, the commit message is not accurate
(in an unimportant way).

You said

    Without [the addition of NEEDS_LIBGEN to config.mak.in], the
    generated shell script would contain a snippet like this:

       for ac_lib in ; do
         ...

    which is incorrect.

Actually, the "for ac_lib in ; do" snippet is produced with or without
my patch.  I didn't mean to imply that there was a change in that
respect.  It's just that that snippet is what prevents the configure
script from completing successfully on IRIX and Solaris 7 when executing
it with /bin/sh or /bin/ksh.  When bash is used, the configure script
can execute successfully, and then it can be verified that the patched
configure.ac produces a configure script that operates correctly.

Sorry for the confusion.

-brandon


Brandon Casey wrote:
> From: Brandon Casey <drafnel@xxxxxxxxx>
> 
> An entry in the config.mak.in file is necessary for the NEEDS_LIBGEN variable
> to appear in the config.mak.autogen file with the value assigned by the
> configure script.
> 
> Signed-off-by: Brandon Casey <drafnel@xxxxxxxxx>
> ---
> 
> 
> Junio,
> 
> You probably want to apply or squash this somewhere.
> 
> As I noted in the original patch, the autoconf part was untested.
> I actually did some light testing on this one.  I created the configure file
> on linux and ran it on Solaris and IRIX.  Both produce an error which looks
> something like:
> 
>    configure[1234]: syntax error at line 4806 : `;' unexpected
> 
> And line 4806 looks like:
> 
>    for ac_lib in ; do
>       ...
> 
> It works with bash though, and it works with /bin/sh on Solaris 10.  On
> Solaris 10, the configure script correctly detects that hstrerror cannot be
> used without -lresolv, and basename can be used without -lgen.  In
> config.mak.autogen, NEEDS_RESOLV is set to 'YesPlease' and NEEDS_LIBGEN is
> unset.  On my Solaris 7, bash is not available, but the informational messages
> indicate the same results as for Solaris 10.  On IRIX, hstrerror() can be used
> without -lresolv and basename cannot be used without -lgen.  In
> config.mak.autogen, NEEDS_RESOLV is unset, and NEEDS_LIBGEN is set to
> 'YesPlease'.
> 
> So, I think this patch should be the final one.
> 
> -brandon
> 
> 
>  config.mak.in |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/config.mak.in b/config.mak.in
> index dd60451..67b12f7 100644
> --- a/config.mak.in
> +++ b/config.mak.in
> @@ -34,6 +34,7 @@ NO_LIBGEN_H=@NO_LIBGEN_H@
>  NEEDS_LIBICONV=@NEEDS_LIBICONV@
>  NEEDS_SOCKET=@NEEDS_SOCKET@
>  NEEDS_RESOLV=@NEEDS_RESOLV@
> +NEEDS_LIBGEN=@NEEDS_LIBGEN@
>  NO_SYS_SELECT_H=@NO_SYS_SELECT_H@
>  NO_D_INO_IN_DIRENT=@NO_D_INO_IN_DIRENT@
>  NO_D_TYPE_IN_DIRENT=@NO_D_TYPE_IN_DIRENT@

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