GNU bug report logs - #70972
Test 170 fails

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Sam James <sam <at> gentoo.org>
Subject: bug#70972: closed (Re: bug#70972: Test 170 fails)
Date: Thu, 15 Aug 2024 14:35:02 +0000

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Your bug report

#70972: Test 170 fails

which was filed against the libtool package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 70972 <at> debbugs.gnu.org.

-- 
70972: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=70972
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Ileana Dumitrescu <ileanadumitrescu95 <at> gmail.com>
To: 70972-done <at> debbugs.gnu.org
Cc: Sam James <sam <at> gentoo.org>
Subject: Re: bug#70972: Test 170 fails
Date: Thu, 15 Aug 2024 17:32:59 +0300

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Hi Sam,

>>> Have you been able to test if test 170 (bug_62343.at for
>>> -no-canonical-prefixes) fails in libtool-2.5.1 for you?
>>>
>>> If not, would you provide more information to help debug?
>>
>> Sorry, I'd forgot about this -- I will check and report back either way
>> later today.
> 
> The problem is gone with 2.5.1, it appears! I am sorry I kept you
> waiting.

Thank you for testing! I am glad it is fixed :)

-- 
Ileana Dumitrescu

GPG Public Key: FA26 CA78 4BE1 8892 7F22 B99F 6570 EA01 146F 7354

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From: Sam James <sam <at> gentoo.org>
To: bug-libtool <at> gnu.org
Subject: Test 170 fails
Date: Thu, 16 May 2024 02:09:24 +0100

When testing libtool-2.5.0, I got one test failure in test 170
(bug_62343.at for -no-canonical-prefixes):

#                             -*- compilation -*-
170. bug_62343.at:26: testing Use -no-canonical-prefixes flag ...
./bug_62343.at:28: $LIBTOOL --config | $EGREP '^build_libtool_libs=no' && (exit 77)
./bug_62343.at:36: $LIBTOOL --mode=compile --tag=CXX g++ -c x.cpp
stderr:
stdout:
libtool: compile:  g++ -c x.cpp  -fPIC -DPIC -o .libs/x.o
libtool: compile:  g++ -c x.cpp -o x.o
./bug_62343.at:38: $LIBTOOL --mode=link --tag=CXX g++ -o libx.la -no-canonical-prefixes -rpath /usr/lib64/ x.lo
stderr:
g++: fatal error: '-fuse-linker-plugin', but liblto_plugin.so not found
compilation terminated.
stdout:
libtool: link: g++  -fPIC -DPIC -shared -nostdlib /usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/15/crtbeginS.o  .libs/x.o   -L/usr/lib/gcc/x86_64-pc-linux-gnu/15 -L/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../x86_64-pc-linux-gnu/lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/15/../../.. -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-pc-linux-gnu/15/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/15/../../../../lib64/crtn.o  -no-canonical-prefixes   -Wl,-soname -Wl,libx.so.0 -o .libs/libx.so.0.0.0
./bug_62343.at:38: exit code was 1, expected 0
170. bug_62343.at:26: 170. Use -no-canonical-prefixes flag (bug_62343.at:26): FAILED (bug_62343.at:38)

Any idea how to further probe what's going on? I'm not sure why it's
even trying to use a linker plugin.

If I run manually, I do get the same error at least:

$ g++ -o libx.la -no-canonical-prefixes x.lo
g++: fatal error: ‘-fuse-linker-plugin’, but liblto_plugin.so not found
compilation terminated.

I'm also confused as I *do* have the plugin at
/usr/libexec/gcc/x86_64-pc-linux-gnu/15/liblto_plugin.so and it works
normally in other cases.

If I drop -no-canonical-prefixes, it works fine. (Caveat: I've not
looked up what the flag actually does.)

thanks,
sam

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