Bug#897806: lmms: ftbfs with GCC-8

[Matthias Klose]

Package: src:lmms
Version: 1.1.3-7.1
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/lmms_1.1.3-7.1_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

[...]
[ 41%] Generating moc_LadspaControls.cxx
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect && /usr/lib/x86_64-linux-gnu/qt4/bin/moc @/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/moc_LadspaControls.cxx_parameters
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /<<PKGBUILDDIR>> /<<PKGBUILDDIR>>/plugins/LadspaEffect /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/DependInfo.cmake --color=
Scanning dependencies of target ladspaeffect
make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make -f plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/build.make plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/build
make[3]: Entering directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
[ 41%] Building CXX object plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/LadspaEffect.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect && /usr/bin/c++  -DPLUGIN_NAME=ladspaeffect -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dladspaeffect_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/src/gui  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -o CMakeFiles/ladspaeffect.dir/LadspaEffect.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/LadspaEffect.cpp
[ 41%] Building CXX object plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/LadspaControls.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect && /usr/bin/c++  -DPLUGIN_NAME=ladspaeffect -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dladspaeffect_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/src/gui  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -o CMakeFiles/ladspaeffect.dir/LadspaControls.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/LadspaControls.cpp
[ 41%] Building CXX object plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/LadspaControlDialog.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect && /usr/bin/c++  -DPLUGIN_NAME=ladspaeffect -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dladspaeffect_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/src/gui  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -o CMakeFiles/ladspaeffect.dir/LadspaControlDialog.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/LadspaControlDialog.cpp
[ 41%] Building CXX object plugins/LadspaEffect/CMakeFiles/ladspaeffect.dir/LadspaSubPluginFeatures.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect && /usr/bin/c++  -DPLUGIN_NAME=ladspaeffect -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dladspaeffect_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect -I/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu -I/<<PKGBUILDDIR>>/include -I/<<PKGBUILDDIR>>/src/gui  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -o CMakeFiles/ladspaeffect.dir/LadspaSubPluginFeatures.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/LadspaSubPluginFeatures.cpp
[ 41%] Linking CXX shared module libladspaeffect.so
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect && /usr/bin/cmake -E cmake_link_script CMakeFiles/ladspaeffect.dir/link.txt --verbose=1
/usr/bin/c++ -fPIC -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -Wl,-z,relro -shared  -o libladspaeffect.so CMakeFiles/ladspaeffect.dir/LadspaEffect.o CMakeFiles/ladspaeffect.dir/LadspaControls.o CMakeFiles/ladspaeffect.dir/LadspaControlDialog.o CMakeFiles/ladspaeffect.dir/LadspaSubPluginFeatures.o 
make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
[ 41%] Built target ladspaeffect
make -f plugins/LadspaEffect/caps/CMakeFiles/caps.dir/build.make plugins/LadspaEffect/caps/CMakeFiles/caps.dir/depend
make[3]: Entering directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /<<PKGBUILDDIR>> /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/caps /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/caps/CMakeFiles/caps.dir/DependInfo.cmake --color=
Scanning dependencies of target caps
make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make -f plugins/LadspaEffect/caps/CMakeFiles/caps.dir/build.make plugins/LadspaEffect/caps/CMakeFiles/caps.dir/build
make[3]: Entering directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
[ 41%] Building CXX object plugins/LadspaEffect/caps/CMakeFiles/caps.dir/Amp.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/caps && /usr/bin/c++  -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dcaps_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/include  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -O2 -funroll-loops -Wno-write-strings -o CMakeFiles/caps.dir/Amp.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/Amp.cc
[ 41%] Building CXX object plugins/LadspaEffect/caps/CMakeFiles/caps.dir/Cabinet.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/caps && /usr/bin/c++  -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dcaps_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/include  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -O2 -funroll-loops -Wno-write-strings -o CMakeFiles/caps.dir/Cabinet.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/Cabinet.cc
[ 41%] Building CXX object plugins/LadspaEffect/caps/CMakeFiles/caps.dir/Chorus.o
cd /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/plugins/LadspaEffect/caps && /usr/bin/c++  -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -DQT_XML_LIB -Dcaps_EXPORTS -isystem /usr/include/qt4 -isystem /usr/include/qt4/QtGui -isystem /usr/include/qt4/QtXml -isystem /usr/include/qt4/QtCore -I/<<PKGBUILDDIR>>/include  -O2 -g -fno-exceptions -Wall -Werror=unused-function -Wno-sign-compare -Wno-strict-overflow -Werror -Wno-array-bounds -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPIC -fPIC   -D'QT_TRANSLATIONS_DIR="/usr/share/qt4/translations"' -O2 -funroll-loops -Wno-write-strings -o CMakeFiles/caps.dir/Chorus.o -c /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/Chorus.cc
In file included from /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/dsp/Delay.h:36,
                 from /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/Chorus.h:35,
                 from /<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/Chorus.cc:30:
/<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/dsp/FPTruncateMode.h: In constructor 'DSP::FPTruncateMode::FPTruncateMode()':
/<<PKGBUILDDIR>>/plugins/LadspaEffect/caps/dsp/FPTruncateMode.h:44:11: error: '*<unknown>.DSP::FPTruncateMode::cw0' is used uninitialized in this function [-Werror=uninitialized]
     cw1 = cw0 | 0xC00;
           ^~~
cc1plus: all warnings being treated as errors
make[3]: *** [plugins/LadspaEffect/caps/CMakeFiles/caps.dir/build.make:92: plugins/LadspaEffect/caps/CMakeFiles/caps.dir/Chorus.o] Error 1
make[3]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make[2]: *** [CMakeFiles/Makefile2:2271: plugins/LadspaEffect/caps/CMakeFiles/caps.dir/all] Error 2
make[2]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
make[1]: *** [Makefile:155: all] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>/obj-x86_64-linux-gnu'
dh_auto_build: cd obj-x86_64-linux-gnu && make -j1 returned exit code 2
make: *** [debian/rules:29: build-arch] Error 2
dpkg-buildpackage: error: debian/rules build-arch subprocess returned exit status 2