[DRE-maint] Bug#484198: libqt4-ruby: FTBFS: Qt.cpp:696: error: invalid conversion from 'const char*' to 'char*'

[Lucas Nussbaum]

Package: libqt4-ruby
Version: 1.4.10-2
Severity: serious
User: debian-qa at lists.debian.org
Usertags: qa-ftbfs-20080602 qa-ftbfs
Justification: FTBFS on i386

Hi,

During a rebuild of all packages in sid, your package failed to build on
i386.

Relevant part:
> Linking CXX shared library libsmokeqt4.so
> make[3]: Leaving directory `/build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2'
> [ 53%] Built target smokeqt4
> make[3]: Entering directory `/build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2'
> Scanning dependencies of target qtruby4
> make[3]: Leaving directory `/build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2'
> make[3]: Entering directory `/build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2'
> [ 56%] Building CXX object ruby/qtruby/src/CMakeFiles/qtruby4.dir/Qt.o
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp: In function 'VALUE qvariant_value(VALUE, VALUE, VALUE)':
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:696: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp: In function 'VALUE qvariant_from_value(int, VALUE*, VALUE)':
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:812: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp: In function 'const char* get_VALUEtype(VALUE)':
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:875: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp: In function 'VALUE method_missing(int, VALUE*, VALUE)':
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:1800: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:1850: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp: In function 'VALUE class_method_missing(int, VALUE*, VALUE)':
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:1957: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp: In function 'VALUE initialize_qt(int, VALUE*, VALUE)':
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:2071: error: invalid conversion from 'const char*' to 'char*'
> /build/user-libqt4-ruby_1.4.10-2-amd64-p_380g/libqt4-ruby-1.4.10-2/ruby/qtruby/src/Qt.cpp:2071: error:   initializing argument 4 of 'QByteArray* find_cached_selector(int, VALUE*, VALUE, char*)'
> make[3]: *** [ruby/qtruby/src/CMakeFiles/qtruby4.dir/Qt.o] Error 1

The full build log is available from:
   http://people.debian.org/~lucas/logs/2008/06/02

This rebuild was done with gcc 4.3 instead of gcc 4.2, because gcc 4.3
is now the default on most architectures (even if it's not the case on
i386 yet).  Consequently, many failures are caused by the switch to gcc
4.3.
If you determine that this failure is caused by gcc 4.3, feel free to
downgrade this bug to 'important' if your package is only built on i386,
and this bug is specific to gcc 4.3 (i.e the package builds fine with
gcc 4.2).

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 about 50 AMD64 nodes
of the Grid'5000 platform, using a clean chroot containing a sid i386
environment.  Internet was not accessible from the build systems.

-- 
| Lucas Nussbaum
| lucas at lucas-nussbaum.net   http://www.lucas-nussbaum.net/ |
| jabber: lucas at nussbaum.fr             GPG: 1024D/023B3F4F |