Re: [boost] [1.61.0] building with Clang and c++11

On 07/01/2016 09:36 AM, Chris Glover wrote:

On Fri, 1 Jul 2016 at 04:56 Vladimir Prus wrote:

...

for context, I don't think Boost C++ Libraries can be expected to build without warnings on any compiler these days. There are just too many versions of compilers producing warnings in too many ingenious ways. The warnings above mention the command-line options that will silence the warnings. E.g. if you pass -Wno-keyword-macro, the last warning should go away. Likewise for other warnings. You might consider reporting these warnings to libraries developers. Seems like clang is unnecessary pedantic here. Though, I don't know why container includes .c files - might be worth raising an issue too.

So, the bottom line is that you either have to live with the warnings, or disable them with '-Wno-*' options. For building boost itself, I suggest just living with and ignoring the warnings.

For consuming boost, I find including boost via -isystem, instead of -I, useful because I generally don't care about warnings from boost, but might not want to silence them entirely, or live with them, in my project. I understand, and I have added warning suppressions for those that seem harmless. I may just use -isystem for using the libraries in our code.

I was mostly concerned by the warnings, when not using -std=c++11: 'long long' and 'in-class initialization of non-static data member'. I can't tell whether Clang supports them as extensions or whether it ignores them. But when I use -std=c++11 I get an error on a C file, which I think means the library does not build correctly. I'll report that separately, as Vladimir suggests. -- Dick Hadsell 203-992-6320 Fax: 203-992-6001 Reply-to: hadsell@blueskystudios.com Blue Sky Studioshttp://www.blueskystudios.com 1 American Lane, Greenwich, CT 06831-2560