Header "atomic" not found when compiling the compiler on macOS 11.1 with Xcode 12.4

Xkinler · February 1, 2021, 1:10am

Hi developers,

I am trying to compile the swift compiler using the following command with Xcode 12.4 and macOS 11.1 installed, and I got an error saying that the header file "atomic" cannot be found:

The command:

utils/build-script --skip-build-benchmarks --skip-ios --skip-watchos --skip-tvos --swift-darwin-supported-archs "$(uname -m)" --sccache --release-debuginfo --test --xcode --skip-test-cmark

Here's the link to the gist containing the error log:

gist.github.com

https://gist.github.com/Xkinler/c2366507656f3561aedb1775cbccadcd

gistfile1.txt

"/Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/llvm-macosx-x86_64/RelWithDebInfo/bin/clang" -cc1 -triple x86_64-apple-macosx10.9.0 -Wundef-prefix=TARGET_OS_ -Werror=undef-prefix -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage -emit-obj -mrelax-all -disable-free -main-file-name isPrespecialized.cpp -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fno-rounding-math -munwind-tables -faligned-alloc-unavailable -target-sdk-version=11.1 -fcompatibility-qualified-id-block-type-checking -fvisibility-inlines-hidden-static-local-var -target-cpu core2 -debug-info-kind=standalone -dwarf-version=2 -debugger-tuning=lldb -target-linker-version 609.8 -v -resource-dir /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/llvm-macosx-x86_64/RelWithDebInfo/lib/clang/10.0.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk -I /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/swift-macosx-x86_64/RelWithDebInfo/include -I /Users/yujian/Code/swift-source/swift/include/ -I /Users/yujian/Code/swift-source/llvm-project/llvm/include -I /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/llvm-macosx-x86_64/include -stdlib=libc++ -internal-isystem /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/usr/local/include -internal-isystem /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/llvm-macosx-x86_64/RelWithDebInfo/lib/clang/10.0.0/include -internal-externc-isystem /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/usr/include -O0 -Wno-elaborated-enum-base -fdeprecated-macro -fdebug-compilation-dir /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/prespecialized-metadata -ferror-limit 19 -stack-protector 1 -fblocks -fencode-extended-block-signature -fregister-global-dtors-with-atexit -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -fmax-type-align=16 -o /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/prespecialized-metadata/Output/class-class-flags-run.swift.tmp/isPrespecialized.o -x c++ /Users/yujian/Code/swift-source/swift/test/IRGen/prespecialized-metadata/Inputs/isPrespecialized.cpp
clang -cc1 version 10.0.0 based upon LLVM 10.0.0 default target x86_64-apple-darwin20.2.0
ignoring nonexistent directory "/Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/swift-macosx-x86_64/RelWithDebInfo/include"
ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/usr/local/include"
ignoring nonexistent directory "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk/Library/Frameworks"
#include "..." search starts here:
#include <...> search starts here:
 /Users/yujian/Code/swift-source/swift/include
 /Users/yujian/Code/swift-source/llvm-project/llvm/include
 /Users/yujian/Code/swift-source/build/Xcode-RelWithDebInfoAssert/llvm-macosx-x86_64/include

This file has been truncated. show original

Could you please take a look and help me with that?

Thank you so much for your help!

LucianoPAlmeida · February 2, 2021, 11:45am

Hi @Xkinler
I don't know about this error in specific but here are some references you may found helpful

Also make sure you run update-checkout :)

Xkinler · February 3, 2021, 2:16pm

Hi @LucianoPAlmeida,

Thank you for your reply.

That error no longer exists for me.

Thank you again for your time.