Re: gcc 4.6 for package monkeys
On Fri, Jan 28, 2011 at 08:26:36AM +0100, Julian Sikorski wrote: I have just run into an issue with gcc-4.6, namely RPM Fusion's mame failed to compile [1]. I was told that #include stddef.h was missing. So I have two questions: why did including this header directly became necessary (code builds fine with 4.5) and are there any other issues we package monkeys might run into with a new compiler? Some C++ headers were including cstdef header internally just so that they could use std::size_t and std::ptrdiff_t. Those types are in 4.6+ defined in an internal libstdc++ header using compiler builtin preprocessor macros (that existed for a while), so if you need anything else from cstddef/stddef.h, you need to include it yourself, as basically none of the standard C++ headers include cstddef any more. For more details see: http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00257.html http://gcc.gnu.org/viewcvs?root=gccview=revrev=160231 Jakub -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: gcc 4.6 for package monkeys
On Thu, Jan 27, 2011 at 11:29:45PM -0800, Garrett Holmstrom wrote: On 1/27/2011 23:26, Julian Sikorski wrote: I have just run into an issue with gcc-4.6, namely RPM Fusion's mame failed to compile [1]. I was told that #includestddef.h was missing. So I have two questions: why did including this header directly became necessary (code builds fine with 4.5) and are there any other issues we package monkeys might run into with a new compiler? GCC 4.6 changed a lot of compiler warnings to errors, so a lot of code (especially C++ code) that used to get away with violations like omitting headers or assigning to un-assignable things will now fail to build. Care to share details? Of course there were many changes in the C++ FE, especially for C++0x, and maybe some warnings changed into errors, but nothing I'd describe as a lot. We haven't still written http://gcc.gnu.org/gcc-4.6/porting_to.html so if you have interesting info about changes that affect a lot of packages, details would be certainly welcome. The STL changes not to include cstddef internally is certainly one thing that will be added there. Jakub -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: gcc 4.6 for package monkeys
On Fri, Jan 28, 2011 at 12:11 AM, Jakub Jelinek ja...@redhat.com wrote: On Thu, Jan 27, 2011 at 11:29:45PM -0800, Garrett Holmstrom wrote: On 1/27/2011 23:26, Julian Sikorski wrote: I have just run into an issue with gcc-4.6, namely RPM Fusion's mame failed to compile [1]. I was told that #includestddef.h was missing. So I have two questions: why did including this header directly became necessary (code builds fine with 4.5) and are there any other issues we package monkeys might run into with a new compiler? GCC 4.6 changed a lot of compiler warnings to errors, so a lot of code (especially C++ code) that used to get away with violations like omitting headers or assigning to un-assignable things will now fail to build. Care to share details? Of course there were many changes in the C++ FE, especially for C++0x, and maybe some warnings changed into errors, but nothing I'd describe as a lot. We haven't still written http://gcc.gnu.org/gcc-4.6/porting_to.html so if you have interesting info about changes that affect a lot of packages, details would be certainly welcome. The STL changes not to include cstddef internally is certainly one thing that will be added there. Jakub -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
gcc 4.6 for package monkeys
Hi, I have just run into an issue with gcc-4.6, namely RPM Fusion's mame failed to compile [1]. I was told that #include stddef.h was missing. So I have two questions: why did including this header directly became necessary (code builds fine with 4.5) and are there any other issues we package monkeys might run into with a new compiler? Thanks in advance. Cheers, Julian -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: gcc 4.6 for package monkeys
On 1/27/2011 23:26, Julian Sikorski wrote: I have just run into an issue with gcc-4.6, namely RPM Fusion's mame failed to compile [1]. I was told that #includestddef.h was missing. So I have two questions: why did including this header directly became necessary (code builds fine with 4.5) and are there any other issues we package monkeys might run into with a new compiler? GCC 4.6 changed a lot of compiler warnings to errors, so a lot of code (especially C++ code) that used to get away with violations like omitting headers or assigning to un-assignable things will now fail to build. -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: gcc 4.6 for package monkeys
W dniu 28.01.2011 08:26, Julian Sikorski pisze: Hi, I have just run into an issue with gcc-4.6, namely RPM Fusion's mame failed to compile [1]. I was told that #include stddef.h was missing. So I have two questions: why did including this header directly became necessary (code builds fine with 4.5) and are there any other issues we package monkeys might run into with a new compiler? Thanks in advance. Cheers, Julian [1] https://bugzilla.redhat.com/show_bug.cgi?id=672799 -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
