Bug 920034 – bootstrap-prefix.sh fails in stage3: gcc, ld: library 'mpc' not found

• Status: RESOLVED FIXED
• Product: Gentoo/Alt

[Description Ryan Tsien 2023-12-15 16:08:11 UTC]

GCC compilation failed with the following error:

ld: warning: ignoring duplicate libraries: '-lgcc', '../libcpp/libcpp.a', '../libdecnumber/libdecnumber.a', 'libcommon.a'
ld: library 'mpc' not found
collect2: error: ld returned 1 exit status

tested with gcc-12.2 and gcc-13.2

macOS Sonoma 14.2 with Xcode 15.0.1

Reproducible: Always

[Comment 1 Ryan Tsien 2023-12-15 16:09:59 UTC]

Created attachment 879483 [details]
stage3.log

[Comment 2 Ryan Tsien 2023-12-15 16:13:12 UTC]

Created attachment 879484 [details]
gcc-13.2-build-logs.tar.xz

[Comment 3 Ryan Tsien 2023-12-15 16:13:58 UTC]

Created attachment 879485 [details]
gcc-13.2-environment

[Comment 4 Ryan Tsien 2023-12-15 16:14:25 UTC]

Created attachment 879486 [details]
gcc-12.2-build-logs.tar.xz

[Comment 5 Ryan Tsien 2023-12-15 16:14:49 UTC]

Created attachment 879487 [details]
gcc-12.2-environment

[Comment 6 Ryan Tsien 2023-12-15 22:32:07 UTC]

Created attachment 879526 [details, diff]
ldwrapper.c.diff

This is the patch to fix this bug!

[Comment 7 Fabian Groffen 2023-12-16 08:15:14 UTC]

oh, that's pretty stupid, thanks for the patch!

[Comment 8 Fabian Groffen 2023-12-16 08:20:34 UTC]

Thanks, pushed your patch in https://gitweb.gentoo.org/repo/proj/prefix.git/patch/?id=55996b02c62a3f77b97ad2d3e0a0bb5a4604263f

[Comment 9 Ryan Tsien 2023-12-16 14:17:40 UTC]

Thanks! Could you please also take a look at this bug: https://bugs.gentoo.org/916291#c12

The patch posted below that comment is dirty I think, the proper way should be in the ldwrapper.c either.