Bug#925746: libidn: ftbfs with GCC-9

[Matthias Klose]

Package: src:libidn
Version: 1.33-2.2
Severity: normal
Tags: sid bullseye
User: address@hidden
Usertags: ftbfs-gcc-9

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-9/g++-9, but succeeds to build with gcc-8/g++-8. The
severity of this report will be raised before the bullseye release,
so nothing has to be done for the buster release.

The full build log can be found at:
http://people.debian.org/~doko/logs/gcc9-20190321/libidn_1.33-2.2_unstable_gcc9.log
The last lines of the build log are at the end of this report.

To build with GCC 9, either set CC=gcc-9 CXX=g++-9 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

Common build failures are new warnings resulting in build failures with
-Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-9/porting_to.html

GCC 9 also passes the linker option --as-needed by default; typical
build issues are passing libraries before object files to the linker,
or underlinking of convenience libraries built from the same source.

[...]
PASS: test-thread_self
FAIL: test-thread_create
PASS: test-unistd
PASS: test-u8-check
PASS: test-u8-mbtoucr
PASS: test-u8-uctomb
PASS: test-unsetenv
PASS: test-verify
PASS: test-init.sh
PASS: test-verify.sh
=================================================
   GNU Libidn 1.33: lib/gltests/test-suite.log
=================================================

# TOTAL: 34
# PASS:  31
# SKIP:  1
# XFAIL: 0
# FAIL:  2
# XPASS: 0
# ERROR: 0

.. contents:: :depth: 2

FAIL: test-lock
===============

Starting test_lock ...FAIL test-lock (exit status: 134)

SKIP: test-setlocale1.sh
========================

Skipping test: no locale for testing is installed
SKIP test-setlocale1.sh (exit status: 77)

FAIL: test-thread_create
========================

glthread_create failed
FAIL test-thread_create (exit status: 1)

============================================================================
Testsuite summary for GNU Libidn 1.33
============================================================================
# TOTAL: 34
# PASS:  31
# SKIP:  1
# XFAIL: 0
# FAIL:  2
# XPASS: 0
# ERROR: 0
============================================================================
See lib/gltests/test-suite.log
Please report to address@hidden
============================================================================
make[6]: *** [Makefile:2169: test-suite.log] Error 1
make[6]: Leaving directory '/<<PKGBUILDDIR>>/build/lib/gltests'
make[5]: *** [Makefile:2277: check-TESTS] Error 2
make[5]: Leaving directory '/<<PKGBUILDDIR>>/build/lib/gltests'
make[4]: *** [Makefile:2607: check-am] Error 2
make[4]: Leaving directory '/<<PKGBUILDDIR>>/build/lib/gltests'
make[3]: *** [Makefile:2061: check-recursive] Error 1
make[3]: Leaving directory '/<<PKGBUILDDIR>>/build/lib/gltests'
make[2]: *** [Makefile:2609: check] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>/build/lib/gltests'
make[1]: *** [Makefile:1346: check-recursive] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>/build'
dh_auto_test: cd build && make -j4 check VERBOSE=1 returned exit code 2
make: *** [debian/rules:20: build-arch] Error 2
dpkg-buildpackage: error: debian/rules build-arch subprocess returned exit 
status 2