<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 14, 2016, at 9:04 AM, Tony Parker via swift-corelibs-dev <<a href="mailto:swift-corelibs-dev@swift.org" class="">swift-corelibs-dev@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Do we control this via the module map or some other mechanism?</span><div class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><br class=""></div><div class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;">I could see re-exporting Glibc on Linux as a reasonable solution for now.</div></div></blockquote><div><br class=""></div><div>This seems like the best short-term solution to me.</div><div><br class=""></div><div>It would be ideal (IMO) to define a common “POSIX” (or something like that) module which would have shared unix level interfaces that would portable to all platforms. Then corelibs-foundation could re-export THAT module, providing a common set of APIs on all platforms. A POSIX module would also eliminate the annoying #import glibc/darwin #ifdef dance in many cases.</div><div><br class=""></div><div>-Chris</div><br class=""><blockquote type="cite" class=""><div class=""><div class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><br class=""></div><div class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;">- Tony</div><div class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jan 14, 2016, at 9:04 AM, Philippe Hausler via swift-corelibs-dev <<a href="mailto:swift-corelibs-dev@swift.org" class="">swift-corelibs-dev@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">The reason is that Foundation on darwin re-exports modules below it (by the virtue of objective-c headers) and the linux version is not re-exporting Glibc.<div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jan 14, 2016, at 8:44 AM, Drew Crawford via swift-corelibs-dev <<a href="mailto:swift-corelibs-dev@swift.org" class="">swift-corelibs-dev@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">on Darwin, we can say:<div class=""><br class=""></div><blockquote class="" style="margin: 0px 0px 0px 40px; border: none; padding: 0px;"><div class="">import Foundation</div><div class="">exit(2)</div></blockquote><br class=""><div class="">I'm not totally sure how this works, since exit is provided by Darwin, not by Foundation. But somehow importing Foundation imports Darwin as well.</div><div class=""><br class=""></div><div class="">I think for source compatibility, we should support this, because <a href="http://stackoverflow.com/questions/34186994/swift-2-2-on-linux-use-of-unresolved-identifier-exit" class="">people</a> are <a href="http://stackoverflow.com/questions/24102157/seeking-an-exit-equivalent-in-swift" class="">asking</a> why it doesn't work out of the box.</div><div class=""><br class=""></div><div class="">I considered PRing an exit implementation in corelibs-foundation, but I think that might cause the opposite problem–introduce a conflict between Darwin/Glibc exit and Foundation "exit".</div><div class=""><br class=""></div><div class="">Can someone speak to how this is solved in Darwin Foundation and what we should do about it?</div><img src="https://u2002410.ct.sendgrid.net/wf/open?upn=0mkChau6XnFV-2FCNUik62L9ZaldD0W0ziOwj-2F3jLx36-2FPkxfyxUPS-2Fvx8MtmbN5b5xt4LUDCJuud2DJ6qeVM-2FArlE8reS9lUsKmZGqibO35X8n5uUvqZUtvCakGYaKGF5Yuh7nXMLVFu5-2B92bkhVyIkWr-2F-2Bgik41BespjvEbXitUI1VSq0zJvtjyus0CCDiCJ4ColcoZ1yxfyxA66rLgo3WqLFTq8XDBCJBOHewrfzbU-3D" alt="" width="1" height="1" border="0" class="" style="height: 1px !important; 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