<html><head></head><body><div>Hello Pushkar,</div><div><br><div class="acompli_signature"></div>One idea that comes to mind: are you launching Xcode 7.2 using a recent Swift toolchain? To do so, follow the instructions on this page: <a dir="ltr" href="https://swift.org/download/#latest-development-snapshots" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="1">https://swift.org/download/#latest-development-snapshots</a></div><div><br></div><div>Specifically, you'll want to launch Xcode using the xcrun launch-with-toolchain command.</div><div><br></div><div>Forgive me if this isn't the problem--I'm not at a computer right now, but that error message vaguely reminds me of what happens when one tries to build Foundatoon with an older version of Swift.</div><div><br></div><div>- Brian Gesiak</div><br><br><br>
<div class="gmail_quote">On Wed, Mar 2, 2016 at 8:09 AM -0800, "Pushkar N Kulkarni via swift-corelibs-dev" <span dir="ltr"><<a href="mailto:swift-corelibs-dev@swift.org" target="_blank">swift-corelibs-dev@swift.org</a>></span> wrote:<br>
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<font face="Verdana,Arial,Helvetica,sans-serif" size="2"><div><div><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif">I am very new to Xcode and tried building Foundation and running TestFoundation in Xcode 7.2.1, using the instructions given <a target="_blank" href="https://github.com/apple/swift-corelibs-foundation/blob/master/Docs/GettingStarted.md" title="https://github.com/apple/swift-corelibs-foundation/blob/master/Docs/GettingStarted.md">here</a>.</font></div><div><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif"><br></font></div><div><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif">In step 3, Foundation doesn't build because Xcode reports a compilation failure in NSObjCRuntime.swift (p<font color="#333333">lease refer to the attached snapshot):</font></font></div><div><b><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif">Use of unresolved identifier '_typeByName'</font></b></div><div><b><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif"><br></font></b></div><div><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif">I can see that this function is defined outside of the Foundation project, in the swift project (<a href="https://github.com/apple/swift/blob/a44b09b6b6de50d54856499b156881f68e2eb34f/stdlib/public/core/Misc.swift" title="stdlib/public/core/Misc.swift" style="background-color: transparent; box-sizing: border-box; text-decoration: none; word-wrap: break-word; font-weight: bold;"><font color="#4078c0">stdlib/public/core/Misc.swift</font></a>)<font color="#333333"><b>. </b>I think there are other functions defined in the stdlib and used in Foundation. I am not sure why this particular symbol causes a problem.</font></font></div><div><font color="#333333" size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif"><b><br></b></font></div><div><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif">Could someone please tell me how the symbol could be imported so that Foundation could be compiled and linked?</font></div><div><font size="2" face="Sans Serif, Verdana, Arial, Helvetica, sans-serif"><br></font></div><div style="font-size: small; font-family: 'Default Sans Serif', Verdana, Arial, Helvetica, sans-serif;"><span style="font-family: Verdana, Arial, Helvetica, sans-serif;"><img src="cid:1456916107867"><br></span></div><font face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size="2" style="font-size: small; font-family: Verdana, Arial, Helvetica, sans-serif;"><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt"><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt"><div class="socmaildefaultfont" dir="ltr" style="font-family:Arial;font-size:10.5pt"><div dir="ltr"><br><span style="font-family:georgia,serif;"><span style="font-size: 1.143em;">Pushkar N Kulkarni,</span></span></div>
<div dir="ltr"><span style="font-family:georgia,serif;"><span style="font-size: 1.143em;">IBM Runtimes</span></span></div>
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<div dir="ltr"><em><span style="font-family:georgia,serif;"><span style="font-size: 0.857em;">"Any sufficiently advanced technology is indistinguishable from magic." - Arthur Clarke</span></span></em></div></div></div></div></font></div></font><br>
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