> On Dec 21, 2015, at 9:34 AM, Jordan Rose via swift-corelibs-dev > <swift-corelibs-dev@swift.org> wrote: > > Hm. If this is the right setting to set on everybody's system, we could add > it as part of Clang initialization (for the Clang inside Swift). Otherwise, > you can use "-Xcc" to pass extra flags to Clang, in this case "-Xcc > -D_GNU_SOURCE=1”.
You definitely want -D_GNU_SOURCE=1 on linux systems, as all the non portable calls (that also are the interesting ones) will be hidden behind this. > > Hope that helps, > Jordan > >> On Dec 20, 2015, at 2:29 , Dmitri Gribenko <griboz...@gmail.com> wrote: >> >> + swift-dev, Jordan >> >> On Sun, Dec 20, 2015 at 2:21 AM, Dan Stenmark via swift-corelibs-dev >> <swift-corelibs-dev@swift.org> wrote: >>> I'm trying to invoke Linux's unshare() system call from Swift, but without >>> much success. From C, it requires _GNU_SOURCE to be #define'd before the >>> #include <sched.h>. The Glibc module map does indeed include sched.h, so >>> the lack of _GNU_SOURCE appears to be the likely culprit. What's the >>> appropriate action to take here? >>> >>> Dan >>> _______________________________________________ >>> swift-corelibs-dev mailing list >>> swift-corelibs-dev@swift.org >>> https://lists.swift.org/mailman/listinfo/swift-corelibs-dev >> >> >> >> -- >> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if >> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <griboz...@gmail.com>*/ > > _______________________________________________ > swift-corelibs-dev mailing list > swift-corelibs-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-corelibs-dev _______________________________________________ swift-corelibs-dev mailing list swift-corelibs-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-corelibs-dev
