Public bug reported:
Upstream fwupd runs CI with Debian testing and Ubuntu devel. As part of that
CI we run lintian after a packaged build.
A few days ago we started noticing failures in Ubuntu first and then Debian
later (probably because Ubuntu pulled in the -16 based GCC-7 before it migrated
to Debian testing):
E: fwupd: library-not-linked-against-libc
usr/lib/x86_64-linux-gnu/fwupd-plugins-3/libfu_plugin_upower.so
E: fwupd-tests: library-not-linked-against-libc
usr/lib/x86_64-linux-gnu/fwupd-plugins-3/libfu_plugin_test.so
I examined the files and sure enough they don't have libc.s.6 marked
NEEDED.
Compiling with the older compiler (or clang) they do.
Newer:
$ objdump -x build/obj-x86_64-linux-gnu/plugins/test/libfu_plugin_test.so |
grep needed -i
NEEDED libgobject-2.0.so.0
NEEDED libglib-2.0.so.0
Older:
$ objdump -x build/obj-x86_64-linux-gnu/plugins/test/libfu_plugin_test.so |
grep needed -i
NEEDED libgobject-2.0.so.0
NEEDED libglib-2.0.so.0
NEEDED libpthread.so.0
NEEDED libc.so.6
We were looking at this upstream and find that it only happens if the compiler
optimization is set to -O2. (which is our default). Setting it to -O0 the
problem goes away.
** Affects: fwupd
Importance: Unknown
Status: Unknown
** Affects: gcc-7 (Ubuntu)
Importance: Undecided
Status: New
** Bug watch added: github.com/hughsie/fwupd/issues #472
https://github.com/hughsie/fwupd/issues/472
** Also affects: fwupd via
https://github.com/hughsie/fwupd/issues/472
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1765134
Title:
Update from 7.3.0-15 to 7.3.0-16 based GCC causes lintian problems
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