https://bugzilla.redhat.com/show_bug.cgi?id=1536780 --- Comment #41 from Ron Olson <tachoknight@xxxxxxxxx> --- Swift does have its own clang for building itself, but it uses the system clang for compiling Swift code. Here's a session capture that illustrates this: [rolson@thinky swift-source]$ uname -a Linux thinky 4.16.9-300.fc28.x86_64 #1 SMP Thu May 17 06:39:18 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux [rolson@thinky swift-compile-test]$ more /etc/os-release NAME=Fedora VERSION="28 (Workstation Edition)" ID=fedora VERSION_ID=28 PLATFORM_ID="platform:f28" PRETTY_NAME="Fedora 28 (Workstation Edition)" ANSI_COLOR="0;34" CPE_NAME="cpe:/o:fedoraproject:fedora:28" HOME_URL="https://fedoraproject.org/" SUPPORT_URL="https://fedoraproject.org/wiki/Communicating_and_getting_help" BUG_REPORT_URL="https://bugzilla.redhat.com/" REDHAT_BUGZILLA_PRODUCT="Fedora" REDHAT_BUGZILLA_PRODUCT_VERSION=28 REDHAT_SUPPORT_PRODUCT="Fedora" REDHAT_SUPPORT_PRODUCT_VERSION=28 PRIVACY_POLICY_URL="https://fedoraproject.org/wiki/Legal:PrivacyPolicy" VARIANT="Workstation Edition" VARIANT_ID=workstation [rolson@thinky swift-source]$ rpm -qf /usr/bin/clang clang-6.0.0-5.fc28.x86_64 [rolson@thinky swift-source]$ rpm -qf /usr/bin/swiftc swift-lang-4.2-0.10.20180520gitbb77484.fc28.x86_64 [rolson@thinky swift-source]$ cd /tmp/swift-compile-test/ [rolson@thinky swift-compile-test]$ more test.swift print("Hello World!") [rolson@thinky swift-compile-test]$ swift test.swift Hello World! [rolson@thinky swift-compile-test]$ swiftc test.swift [rolson@thinky swift-compile-test]$ ls test test.swift [rolson@thinky swift-compile-test]$ ./test Hello World! [rolson@thinky swift-compile-test]$ rm test [rolson@thinky swift-compile-test]$ sudo mv /usr/bin/clang /usr/bin/xxxclang [sudo] password for rolson: [rolson@thinky swift-compile-test]$ swiftc test.swift <unknown>:0: error: unable to execute command: <unknown> [rolson@thinky swift-compile-test]$ sudo mv /usr/bin/xxxclang /usr/bin/clang [rolson@thinky swift-compile-test]$ swiftc test.swift [rolson@thinky swift-compile-test]$ ./test Hello World! [rolson@thinky swift-compile-test]$ file test test: ELF 64-bit LSB pie executable x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=227b6b70d8114874c4a7aadcb01a8c34240eb791, not stripped [rolson@thinky swift-compile-test]$ -- You are receiving this mail because: You are on the CC list for the bug. You are always notified about changes to this product and component _______________________________________________ package-review mailing list -- package-review@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to package-review-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/package-review@xxxxxxxxxxxxxxxxxxxxxxx/message/J55OSBSBBXDGWUD3M3LHGJUNDSNK2BQW/