2017-01-01 8:28 GMT-05:00 Prof Brian Ripley <rip...@stats.ox.ac.uk>: > On 29/12/2016 15:55, Simon Urbanek wrote: > >> The problem is elsewhere - Rinterface.h guards the ultima-ratio fallback >> with HAVE_UINTPTR_T but that config flag is not exported in Rconfig.h. >> Should be now fixed in R-devel - please check if that works for you. >> > > Rconfig.h would be appropriate if Rinterface.h is being included from C > code using the same compiler as used for R. But as Rinterface.h is > intended for use by alternative front ends there is no guarantee that they > use the same compiler (and some use C++). >
Isn't the changing libc/glibc not recommended anyway (without also changing to a matching kernel) ? If so, is this a realistic concern compared to the compiler version issues (mentioned by Dirk) ? In that case, what about simplifying the documentation and usage to "use the same compiler or undefined behaviour may occur" > This was documented in the manual: > > 'Note that uintptr_t is a C99 type for which a substitute is defined in R, > so your code needs to define HAVE_UINTPTR_T appropriately.' > > AFAICS if you comply, there will not be a conflict. > > Also note that is only an issue if CSTACK_DEFNS is defined, not the > default and not mentioned here. > > > > > Thanks, >> Simon >> >> >> >> On Dec 26, 2016, at 11:25 PM, Laurent Gautier <lgaut...@gmail.com> wrote: >>> (...) >>> >>> Is this expected ? Shouldn't R rely on the definition in stdint.h >>> >> > But there need not be one in stdint.h, as the type is optional in > C99/C11/C++11 and likely not present in C++98. AFAIUI stdin.h is part of C99: https://en.wikipedia.org/wiki/C_standard_library#Header_files While at it, it is not exactly like C99 is the latest thing in town. Wouldn't relying on it give an opportunity to simplify the code base ? Laurent > > rather than define its own ? >>> >>> >>> (report for the issue: >>> https://bitbucket.org/rpy2/rpy2/issues/389/failed-to-compile >>> -with-python-360-on-32 >>> ) >>> >>> >>> Laurent >>> >>> > > -- > Brian D. Ripley, rip...@stats.ox.ac.uk > Emeritus Professor of Applied Statistics, University of Oxford > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
