Bug#831070: qink: FTBFS with GCC 6: icontheme.cpp:423:39: error: call of overloaded 'abs(unsigned int)' is ambiguous
Source: qink
Version: 0.3.5-6
Severity: serious
Tags: stretch sid
User: debian-qa@lists.debian.org
Usertags: qa-ftbfs-20160713 qa-ftbfs
Justification: FTBFS with GCC 6 on amd64
Hi,
During a rebuild of all packages in sid using the gcc-defaults package
available in experimental to make GCC default to version 6, your package failed
to build on amd64. For more information about GCC 6 and Stretch, see:
- https://wiki.debian.org/GCC6
- https://lists.debian.org/debian-devel-announce/2016/06/msg00007.html
Relevant part (hopefully):
> g++ -c -m64 -pipe -g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -O2 -fPIC -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4 -I. -o icontheme.o icontheme.cpp
> icontheme.cpp: In member function 'unsigned int IconTheme::dirSizeDistance(const IconDirData&, unsigned int) const':
> icontheme.cpp:423:39: error: call of overloaded 'abs(unsigned int)' is ambiguous
> return abs(dir.size - size);
> ^
> In file included from /usr/include/c++/6/cstdlib:75:0,
> from /usr/include/c++/6/bits/stl_algo.h:59,
> from /usr/include/c++/6/algorithm:62,
> from /usr/include/qt4/QtCore/qglobal.h:68,
> from /usr/include/qt4/QtCore/qnamespace.h:45,
> from /usr/include/qt4/QtCore/qobjectdefs.h:45,
> from /usr/include/qt4/QtCore/qobject.h:47,
> from /usr/include/qt4/QtCore/QObject:1,
> from envmap.h:23,
> from icontheme.h:23,
> from icontheme.cpp:20:
> /usr/include/stdlib.h:774:12: note: candidate: int abs(int)
> extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
> ^~~
> In file included from /usr/include/c++/6/bits/stl_algo.h:59:0,
> from /usr/include/c++/6/algorithm:62,
> from /usr/include/qt4/QtCore/qglobal.h:68,
> from /usr/include/qt4/QtCore/qnamespace.h:45,
> from /usr/include/qt4/QtCore/qobjectdefs.h:45,
> from /usr/include/qt4/QtCore/qobject.h:47,
> from /usr/include/qt4/QtCore/QObject:1,
> from envmap.h:23,
> from icontheme.h:23,
> from icontheme.cpp:20:
> /usr/include/c++/6/cstdlib:185:3: note: candidate: __int128 std::abs(__int128)
> abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; }
> ^~~
> /usr/include/c++/6/cstdlib:180:3: note: candidate: long long int std::abs(long long int)
> abs(long long __x) { return __builtin_llabs (__x); }
> ^~~
> /usr/include/c++/6/cstdlib:172:3: note: candidate: long int std::abs(long int)
> abs(long __i) { return __builtin_labs(__i); }
> ^~~
> make[2]: *** [icontheme.o] Error 1
The full build log is available from:
http://people.debian.org/~lucas/logs/2016/07/13/qink_0.3.5-6_unstable_gcc6.log
A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!
About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.
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