Improve libatomic test in WebKitCompilerFlags.cmake

[bertogg]

36c3761

Improve libatomic test in WebKitCompilerFlags.cmake
https://bugs.webkit.org/show_bug.cgi?id=313534

Reviewed by Adrian Perez de Castro and Michael Catanzaro.

Fail immediately if the atomic source test cannot be built, even when
using libatomic.

* Source/cmake/WebKitCompilerFlags.cmake:

Canonical link: https://commits.webkit.org/312202@main

ff68c99

Misc	iOS, visionOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	❌ 🛠 win
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	❌ 🧪 wpe-wk2	❌ 🧪 win-tests
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt	✅ 🧪 api-mac-debug	✅ 🛠 gtk3-libwebrtc
✅ 🛠 🧪 jsc	✅ 🧪 api-ios		✅ 🛠 gtk
✅ 🛠 🧪 jsc-debug-arm64		✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
🧪 services	✅ 🛠 vision	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
✅ 🛠 🧪 merge	✅ 🛠 vision-sim	✅ 🧪 mac-wk2-stress	🛠 playstation
🛠 🧪 unsafe-merge	✅ 🧪 vision-wk2	✅ 🧪 mac-intel-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv		✅ 🧪 jsc-armv7-tests
	✅ 🛠 tv-sim
	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash ff68c99)

Details

Misc	iOS, visionOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	❌ 🛠 win
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	❌ 🧪 wpe-wk2	❌ 🧪 win-tests
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt	✅ 🧪 api-mac-debug	✅ 🛠 gtk3-libwebrtc
✅ 🛠 🧪 jsc	✅ 🧪 api-ios		✅ 🛠 gtk
✅ 🛠 🧪 jsc-debug-arm64		✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
🧪 services	✅ 🛠 vision	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
✅ 🛠 🧪 merge	✅ 🛠 vision-sim	✅ 🧪 mac-wk2-stress	🛠 playstation
🛠 🧪 unsafe-merge	✅ 🧪 vision-wk2	✅ 🧪 mac-intel-wk2	✅ 🛠 jsc-armv7
	✅ 🛠 tv		✅ 🧪 jsc-armv7-tests
	✅ 🛠 tv-sim
	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-commit-queue]

@bertogg does not have committer permissions according to https://raw.githubusercontent.com/WebKit/WebKit/main/metadata/contributors.json.

If you do have committer permissions, please ensure that your GitHub username is added to contributors.json.

Rejecting ff68c99f4a63dbedded10914c879bbb77a7df718 from merge queue.

[mcatanzaro]

Thank you!

[webkit-commit-queue]

Committed 312202@main (36c3761): https://commits.webkit.org/312202@main

Reviewed commits have been landed. Closing PR #63783 and removing active labels.

[aperezdc]

Backported into webkitglib/2.52 as commit 51fd523