[Pkg-ayatana-devel] Bug#897866: snapd-glib: ftbfs with GCC-8

[Matthias Klose]

Package: src:snapd-glib
Version: 1.38-1
Severity: normal
Tags: sid buster
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-8

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-8/g++-8, but succeeds to build with gcc-7/g++-7. The
severity of this report will be raised before the buster release.

The full build log can be found at:
http://aws-logs.debian.net/2018/05/01/gcc8/snapd-glib_1.38-1_unstable_gcc8.log.gz
The last lines of the build log are at the end of this report.

To build with GCC 8, either set CC=gcc-8 CXX=g++-8 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-8/porting_to.html

[...]
make[3]: Leaving directory '/<<PKGBUILDDIR>>/doc'
make[2]: Leaving directory '/<<PKGBUILDDIR>>/doc'
make[2]: Entering directory '/<<PKGBUILDDIR>>'
make[3]: Entering directory '/<<PKGBUILDDIR>>'
make[3]: Nothing to be done for 'install-exec-am'.
make[3]: Nothing to be done for 'install-data-am'.
make[3]: Leaving directory '/<<PKGBUILDDIR>>'
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_install -a
   dh_installdocs -a
   dh_installchangelogs -a
   dh_perl -a
   dh_link -a
   dh_strip_nondeterminism -a
   dh_compress -a
   dh_fixperms -a
   dh_missing -a
   dh_strip -a
   debian/rules override_dh_makeshlibs
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_makeshlibs -V -- -c4
dpkg-gensymbols: warning: some new symbols appeared in the symbols file: see diff output below
dpkg-gensymbols: warning: debian/libsnapd-qt1/DEBIAN/symbols doesn't match completely debian/libsnapd-qt1.symbols
--- debian/libsnapd-qt1.symbols (libsnapd-qt1_1.38-1_amd64)
+++ dpkg-gensymbolslnDkmR	2018-05-02 12:04:06.255824472 +0000
@@ -275,7 +275,7 @@
  (c++)"QSnapdUserInformation::username() const at Base" 1.25
  (c++)"QSnapdUserInformation::~QSnapdUserInformation()@Base" 1.25
  (c++)"QSnapdWrappedObject::~QSnapdWrappedObject()@Base" 1.5
- (c++|optional)"QString::QString(QString const&)@Base" 0
+#MISSING: 1.38-1# (c++|optional)"QString::QString(QString const&)@Base" 0
  (c++|optional)"QString::toStdString[abi:cxx11]() const at Base" 0
  (c++|optional)"QString::~QString()@Base" 0
  (c++|regex)"^.*::metaObject\(\) const at Base$" 0
@@ -291,6 +291,9 @@
  (c++|regex)"^typeinfo for .*@Base$" 0
  (c++|regex)"^typeinfo name for .*@Base$" 0
  (c++|regex)"^vtable for .*$" 0
+ _Z27qRegisterNormalizedMetaTypeIP14QSnapdAuthDataEiRK10QByteArrayPT_N9QtPrivate21MetaTypeDefinedHelperIS5_Xaasr12QMetaTypeId2IS5_E7DefinedntsrSA_9IsBuiltInEE11DefinedTypeE at Base 1.38-1
+ _Z27qRegisterNormalizedMetaTypeIP21QSnapdUserInformationEiRK10QByteArrayPT_N9QtPrivate21MetaTypeDefinedHelperIS5_Xaasr12QMetaTypeId2IS5_E7DefinedntsrSA_9IsBuiltInEE11DefinedTypeE at Base 1.38-1
+ _Z27qRegisterNormalizedMetaTypeIP23QSnapdSystemInformationEiRK10QByteArrayPT_N9QtPrivate21MetaTypeDefinedHelperIS5_Xaasr12QMetaTypeId2IS5_E7DefinedntsrSA_9IsBuiltInEE11DefinedTypeE at Base 1.38-1
  (c++)"login(QString const&, QString const&)@Base" 1.8
  (c++)"login(QString const&, QString const&, QString const&)@Base" 0
  (optional)stream_wrapper_get_type at Base 1.9
dh_makeshlibs: failing due to earlier errors
make[1]: *** [debian/rules:12: override_dh_makeshlibs] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:6: binary-arch] Error 2
dpkg-buildpackage: error: fakeroot debian/rules binary-arch subprocess returned exit status 2