netplan.io: ftbfs with GCC 10

[Andrej Shadura]

Netplan fails to link with GCC 10 due to a repeated non-extern variable declaration in a header used across multiple source files.

cc -shared -Wl,-soname,libnetplan.so.0.0 -g -fPIC -std=c99 -D_XOPEN_SOURCE=500 -DSBINDIR=\"/usr/sbin\" -Wall -Werror -g -O2 -fdebug-prefix-map=/home/andrewsh/projects/netplan.io=. -fstack-protector-strong -Wformat -Werror=format-security -Wl,-Bsymbolic-functions -Wl,-z,relro -o libnetplan.so.0.0 parse.o util.o validation.o error.o `pkg-config --libs yaml-0.1`
/usr/bin/ld: validation.o:./src/parse.h:34: multiple definition of `missing_id'; parse.o:./src/parse.h:34: first defined here
/usr/bin/ld: validation.o:./src/parse.h:35: multiple definition of `missing_ids_found'; parse.o:./src/parse.h:35: first defined here
/usr/bin/ld: validation.o:./src/parse.h:28: multiple definition of `current_file'; parse.o:./src/parse.h:28: first defined here
/usr/bin/ld: error.o:./src/parse.h:28: multiple definition of `current_file'; parse.o:./src/parse.h:28: first defined here
/usr/bin/ld: error.o:./src/parse.h:35: multiple definition of `missing_ids_found'; parse.o:./src/parse.h:35: first defined here
/usr/bin/ld: error.o:./src/parse.h:34: multiple definition of `missing_id'; parse.o:./src/parse.h:34: first defined here
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:42: libnetplan.so.0.0] Error 1

See also: https://bugs.debian.org/957603

[Lukas Märdian (slyon)]

A fix is available here: https://github.com/CanonicalLtd/netplan/pull/155

[Launchpad Janitor (janitor)]

This bug was fixed in the package netplan.io - 0.99-0ubuntu6

---------------
netplan.io (0.99-0ubuntu6) groovy; urgency=medium

  * d/p/0005-Fix-GCC-10-fno-common-linker-errors-LP-1875412-155.patch
    - Fix FTBFS if compiled using GCC-10 (LP: #1875412)
    - Using upstream commit 50ac1a1
  * Refresh patches using 'gbp pq'

 -- Lukas Märdian <email address hidden> Tue, 28 Jul 2020 14:12:28 +0200