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Diffstat (limited to 'Help/policy')
| -rw-r--r-- | Help/policy/CMP0131.rst | 31 |
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diff --git a/Help/policy/CMP0131.rst b/Help/policy/CMP0131.rst new file mode 100644 index 0000000..e85b8ab --- /dev/null +++ b/Help/policy/CMP0131.rst @@ -0,0 +1,31 @@ +CMP0131 +------- + +.. versionadded:: 3.24 + +:prop_tgt:`LINK_LIBRARIES` supports the :genex:`$<LINK_ONLY:...>` +generator expression. + +CMake 3.23 and below documented the :genex:`$<LINK_ONLY:...>` generator +expression only for use in :prop_tgt:`INTERFACE_LINK_LIBRARIES`. +When used in :prop_tgt:`LINK_LIBRARIES`, the content guarded inside +:genex:`$<LINK_ONLY:...>` was always used, even when collecting non-linking +usage requirements such as :prop_tgt:`INTERFACE_COMPILE_DEFINITIONS`. + +CMake 3.24 and above prefer to support :genex:`$<LINK_ONLY:...>`, when +used in :prop_tgt:`LINK_LIBRARIES`, by using the guarded content only +for link dependencies and not other usage requirements. This policy +provides compatibility for projects that have not been updated to +account for this change. + +The ``OLD`` behavior for this policy is to use :prop_tgt:`LINK_LIBRARIES` +content guarded by :genex:`$<LINK_ONLY:...>` even for non-linking +usage requirements. The ``NEW`` behavior for this policy is to to use +the guarded content only for link dependencies. + +This policy was introduced in CMake version 3.24. Use the +:command:`cmake_policy` command to set this policy to ``OLD`` or ``NEW`` +explicitly. Unlike many policies, CMake version |release| does *not* +warn when this policy is not set, and simply uses ``OLD`` behavior. + +.. include:: DEPRECATED.txt |