Subject: Build-bot host compiler upgrades and C++11!
Date: Tuesday 7th January 2014 09:40:35 UTC (over 3 years ago)
Greetings, starting a new thread and CC-ing all the folks I could think of that are likely running bots for LLVM. If I've missed any, sorry, please add them. As lots of folks have been mentioning, it's time to switch LLVM (and most subprojects) to use C++11. The first step is establishing a new baseline of compiler versions that are supported: MSVC 2012 GCC 4.7 Clang 3.1 If you are helping to keep our build bot infrastructure running and up-to-date, please check the host compiler versions and reply here if you're going to have trouble upgrading. My rough plan based on chatting with some folks is to submit checks to cmake and configure on Monday to produce an error on older toolchains without some flag to force old toolchain support. So reply to this thread if you need more time, or if all your bots are ready-to-go! Thanks a bunch! -Chandler : Most of these compilers were available in the middle (June) of 2012, and based on the planned 3.5 release time frame of the middle of 2014, that will mean a roughly two year spread of compiler releases. MSVC 2012 was later, but the community seems comfortable with requiring the upgrade. Also, these versions include very significant improvements that make adopting C++11 features much more viable. This was discussed at some length on the mailing list, and I'm not really trying to re-open debate here, just reminding folks. =]