On Tue, Jan 22, 2013 at 08:07:01PM +0000, Roger Leigh wrote: > On Mon, Jan 21, 2013 at 10:38:15PM -0800, Paul Eggert wrote: > > On 01/21/2013 12:36 PM, Roger Leigh wrote: > > > For C stuff like > > > const/restrict/volatile/inline, it's possible to achieve this > > > fairly simply, and autoconf does a very good job here. > > > > > > However, if you look at the C++11 features like declspec, > > > automatic type inference, array initialisers, delegate > > > constructors, range-based for loops, lambdas, etc. these > > > features can not be substituted for. > > > > On 01/21/2013 04:01 PM, Miles Bader wrote: > > > If you need C++11 features and don't have any compatibility fallbacks, > > > isn't following the autoconf language test in configure.ac by > > > "if not c++11 then AC_ERROR([BARF! Need a C++11 compiler!])" good > > > enough? > > That would probably satisfy my own particular use case sufficiently. > > Please find attached a reworked and simplified patch. This patch > adds no user-visible macros, and removes the TR1 checks which can > be done simply enough by the user. This means it will check for > only C++11 and C++98. We have the specific ac_cv_prog_cxx_cxx11 > and ac_cv_prog_cxx_cxx98 which are both set to no if unavailable, > exactly like for C, and these can be checked to see if the > compiler satisfies your requirements. > > Hope that's all OK with you. If there's anything here you're unhappy with, I'll be happy to make any needed changes. Thanks, Roger -- .''`. Roger Leigh : :' : Debian GNU/Linux http://people.debian.org/~rleigh/ `. `' schroot and sbuild http://alioth.debian.org/projects/buildd-tools `- GPG Public Key F33D 281D 470A B443 6756 147C 07B3 C8BC 4083 E800 _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf
