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Merge topic 'doc-CMAKE_OSX_SYSROOT'

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2164da0ae6 Help: Document CMAKE_OSX_SYSROOT default change in 4.0

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !10623
This commit is contained in:
Brad King
2025-04-09 13:12:19 +00:00
committed by Kitware Robot
parent fff29ab244 2164da0ae6
commit 8535fd0af3
2 changed files with 10 additions and 5 deletions
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Help/release/4.0.rst
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@@ -232,8 +232,8 @@ Other Changes
* Builds targeting macOS no longer choose any SDK or pass an ``-isysroot``
flag to the compiler by default. Instead, compilers are expected to
choose a default macOS SDK on their own. In order to use a compiler that
does not do this, users must now specify ``-DCMAKE_OSX_SYSROOT=macosx``
when configuring their build.
does not do this, users must now specify :variable:`CMAKE_OSX_SYSROOT`
when configuring their build, e.g., ``-DCMAKE_OSX_SYSROOT=macosx``.
* On AIX, ``SHARED`` library targets now produce a shared library archive
by default. See policy :policy:`CMP0182`.
Help/variable/CMAKE_OSX_SYSROOT.rst
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@@ -6,8 +6,13 @@ CMake uses this value to compute the value of the ``-isysroot`` flag
or equivalent and to help the ``find_*`` commands locate files in
the SDK.
If not set explicitly the value is initialized by the ``SDKROOT``
environment variable, if set, and otherwise computed based on the
:variable:`CMAKE_OSX_DEPLOYMENT_TARGET` or the host platform.
If not set explicitly, the value is initialized by the ``SDKROOT``
environment variable, if set. Otherwise, the value defaults to empty,
so no explicit ``-isysroot`` flag is passed, and the compiler's default
sysroot is used.
.. versionchanged:: 4.0
The default is now empty. Previously a default was computed based on
the :variable:`CMAKE_OSX_DEPLOYMENT_TARGET` or the host platform.
.. include:: CMAKE_OSX_VARIABLE.txt