GNU bug report logs - #11895
libtool 2.4.2: Several tests trigger spurious output on OS X due to conftest.dSYM dir

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Max Horn <max <at> quendi.de>
To: bug-libtool <at> gnu.org
Subject: libtool 2.4.2: Several tests trigger spurious output on OS X due to
	conftest.dSYM dir
Date: Tue, 10 Jul 2012 13:06:34 +0200

[Message part 1 (text/plain, inline)]

Hi there,

there is a problem in libtool 2.4.2 that causes several libtool autoconf tests to generate spurious output on Mac OS X, like this:

[...]
checking for archiver @FILE support... rm: cannot remove `conftest.dSYM': Is a directory
no
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm output from cc object... rm: cannot remove `conftest.dSYM': Is a directory
ok
[...]

It is well-known that the Mac OS X compilers generated "conftest.dSYM" directories with debug information under certain circumstances. See also this libtool discussion from 2007: <http://old.nabble.com/Mac-OS-X-Leopard-and-conftest.dSYM-directories-td13681269.html>

Now libtool already worked around this OS X behavior by changing instances

  rm -f conftest*

to

  rm -rf conftest*

However, it appears that three instances of this in libtool.m4 where overlooked or crept in at a later date. The attached patchs (one for 2.4.2, one for git) corrects that. Without this patch, the spurious autoconf output can lead to various issues; e.g. it causes hard test suite errors in automake 1.12.x.


Since this affects many, many projects out there using libtool, it would be nice if this could be fixed in a released version of libtool. 


Thanks,
Max

[libtool-2.4.2-dSYM-fix.diff (application/octet-stream, attachment)]

[libtool-git-dSYM-fix.diff (application/octet-stream, attachment)]

Message #8 received at 11895 <at> debbugs.gnu.org (full text, mbox):

From: Max Horn <max <at> quendi.de>
To: 11895 <at> debbugs.gnu.org
Subject: Re: bug#11895: Acknowledgement (libtool 2.4.2: Several tests trigger
	spurious output on OS X due to conftest.dSYM dir)
Date: Tue, 10 Jul 2012 13:19:52 +0200

[Message part 1 (text/plain, inline)]

Sorry, I just realized that there are far more than three places where this problem occurs. The attached revised patch tries to address that.

Note that I did not attempt to unify the use of $RM  vs.  "rm -f", as I don't know whether there is any logic behind the current seemingly random switching between the two. And there are some instances left in autoconf, too. Will report those separately.

Cheers,
Max

[libtool-2.4.2-dSYM-fix.diff (application/octet-stream, attachment)]

[libtool-git-dSYM-fix.diff (application/octet-stream, attachment)]

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