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8385525: Suggest Metal toolchain download in configure error on Xcode 26+

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Reviewed-by: erikj, serb, shade
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George Adams 2026-05-27 19:59:30 +00:00 committed by Erik Joelsson
parent 2d97d4e7f8
commit ff81bd72a6
3 changed files with 4 additions and 2 deletions
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2
doc/building.html
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@ -545,7 +545,7 @@ earlier versions may also work.</p>
no longer comes bundled with Xcode, so it needs to be installed
separately. This can either be done via the Xcode's Settings/Components
UI, or in the command line calling
<code>xcodebuild -downloadComponent metalToolchain</code>.</p>
<code>xcodebuild -downloadComponent MetalToolchain</code>.</p>
<p>The standard macOS environment contains the basic tooling needed to
build, but for external libraries a package manager is recommended. The
JDK uses <a href="https://brew.sh/">homebrew</a> in the examples, but

2
doc/building.md
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@ -355,7 +355,7 @@ earlier versions may also work.
Starting with Xcode 26, introduced in macOS 26, the Metal toolchain no longer
comes bundled with Xcode, so it needs to be installed separately. This can
either be done via the Xcode's Settings/Components UI, or in the command line
calling `xcodebuild -downloadComponent metalToolchain`.
calling `xcodebuild -downloadComponent MetalToolchain`.
The standard macOS environment contains the basic tooling needed to build, but
for external libraries a package manager is recommended. The JDK uses

2
make/autoconf/toolchain.m4
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@ -692,6 +692,8 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
AC_MSG_NOTICE([A full XCode is required to build the JDK (not only command line tools)])
AC_MSG_NOTICE([If you have XCode installed, you might need to reset the Xcode active developer directory])
AC_MSG_NOTICE([using 'sudo xcode-select -r'])
AC_MSG_NOTICE([Starting with Xcode 26, the Metal toolchain is no longer bundled with Xcode.])
AC_MSG_NOTICE([Try installing it with 'xcodebuild -downloadComponent MetalToolchain'])
AC_MSG_ERROR([XCode tool 'metal' neither found in path nor with xcrun])
else
AC_MSG_RESULT([yes, will be using '$METAL'])