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Roger Leigh commented on XERCESC-2141: -------------------------------------- In the interim, contemporary compilers are going to be enabling C++17 by default, so I've added this in addition to C++11 and C++14 for both Autoconf and CMake. > Enable C++11/14/17 with autoconf build and CMake build > ------------------------------------------------------ > > Key: XERCESC-2141 > URL: https://issues.apache.org/jira/browse/XERCESC-2141 > Project: Xerces-C++ > Issue Type: Improvement > Components: Build > Reporter: Roger Leigh > Assignee: Roger Leigh > Priority: Major > Labels: autoconf, build, c++11, c++14, c++17 > Fix For: 3.3.0 > > Attachments: 0001-autoconf-Enable-C-14-or-C-11-when-available.patch > > > The CMake build will try to put the compiler in C++14 mode, falling back to > C++11 then C++98. The autoconf build doesn't do this, and the attached patch > makes the behaviour match so both build systems will use the same fallbacks. > Current compilers default to C++14. Very old compilers have no support for > C++11 or C++14. But compilers in between support it, but not by default. > This adds the feature tests to check for such support and enable it when > available. > The CMake C++ standard support is user-configurable by setting the > CMAKE_CXX_STANDARD setting. Autoconf doesn't provide any way to do this, so > the feature enabling isn't explicitly overridable. I'm not sure if that's > too problematic. The main compatibility concern might be if this causes an > ABI break with use of C++11/14 library features like the new string type. > However, we aren't making use of any of these features. The main change > would be the XMLCh type switch from uint16_t to char16_t. I'm not sure what > the Xerces policy for such changes has been in the past. Any thoughts? -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: c-dev-unsubscr...@xerces.apache.org For additional commands, e-mail: c-dev-h...@xerces.apache.org