<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>You miss a runtime search path when linking your executable. And this is what you achieved with install_name_tool with an additional step.</div><div><br></div><div>To avoid this additional step, see <a href="https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/RunpathDependentLibraries.html">https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/RunpathDependentLibraries.html</a></div><div>or</div><div><a href="https://stackoverflow.com/questions/42613881/adding-run-time-shared-library-search-path-to-executable-at-compile-time-clang">https://stackoverflow.com/questions/42613881/adding-run-time-shared-library-search-path-to-executable-at-compile-time-clang</a></div><div><br></div><div>By the way this is not related to Swift at all.</div><div><br></div><div>Lucas</div><div><br>Le 2 mars 2018 à 20:12, Harry Mallon <<a href="mailto:Harry.Mallon@codex.online">Harry.Mallon@codex.online</a>> a écrit :<br><br></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">When making a pure Swift bundle Xcode automatically copies `libswiftCore.dylib` as follows.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">```<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">./Tests/SwiftOnly/Debug/SwiftOnly.app<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">└── Contents<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><span lang="EN-US" style="font-size:11.0pt;font-family:"MS Gothic"">├</span><span style="font-size:11.0pt">── Frameworks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> │ └── libswiftCore.dylib<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><span lang="EN-US" style="font-size:11.0pt;font-family:"MS Gothic"">├</span><span style="font-size:11.0pt">── Info.plist<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><span lang="EN-US" style="font-size:11.0pt;font-family:"MS Gothic"">├</span><span style="font-size:11.0pt">── MacOS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> │ └── SwiftOnly<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><span lang="EN-US" style="font-size:11.0pt;font-family:"MS Gothic"">├</span><span style="font-size:11.0pt">── PkgInfo<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> └── Resources<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> └── libswiftRemoteMirror.dylib<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">```<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">When I try to run the output I get a dynamic linking error. I can reproduce this by adding MACOSX_BUNDLE to `./Tests/SwiftOnly/CMakeLists.txt` (in the CMake source tree) in `add_executable` and trying to run
the result.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">```<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">% ./Tests/SwiftOnly/Debug/SwiftOnly.app/Contents/MacOS/SwiftOnly
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">dyld: Library not loaded: @rpath/libswiftCore.dylib<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Referenced from: .../Tests/SwiftOnly/Debug/SwiftOnly.app/Contents/MacOS/SwiftOnly<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> Reason: image not found<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">zsh: abort ./Tests/SwiftOnly/Debug/SwiftOnly.app/Contents/MacOS/SwiftOnly<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">```<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">It seems that the rpath should be set to `@loader_path/../Frameworks`. I am not a Swift maestro so not exactly sure on the details of how this works. After running `install_name_tool -add_rpath "@loader_path/../Frameworks"
./Tests/SwiftOnly/Debug/SwiftOnly.app/Contents/MacOS/SwiftOnly` it runs fine.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Does anyone have any idea what to do? Is it a missing CMake Swift feature? We are currently working around it by manually adding the rpath with a cmake step.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Harry<o:p></o:p></span></p>
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Harry Mallon</p>
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+44 203 7000 989</a> </p>
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