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ExternalProject: Provide ExternalProject_Add keywords through a macro

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This allows things outside of ExternalProject to have access
to the list of supported keywords. This will be used by
FetchContent in an upcoming change.

Issue: #21703
This commit is contained in:
Craig Scott 2024-05-03 17:49:25 +10:00
parent 91e1015722
commit 0ccc8e340d
No known key found for this signature in database
GPG Key ID: 6FF37CBDCCADED9F
1 changed files with 54 additions and 49 deletions
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103
Modules/ExternalProject.cmake
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@ -4271,55 +4271,8 @@ function(_ep_add_test_command name)
endfunction()
function(ExternalProject_Add name)
cmake_policy(GET CMP0097 _EP_CMP0097
PARENT_SCOPE # undocumented, do not use outside of CMake
)
cmake_policy(GET CMP0114 cmp0114
PARENT_SCOPE # undocumented, do not use outside of CMake
)
if(CMAKE_XCODE_BUILD_SYSTEM VERSION_GREATER_EQUAL 12 AND
NOT cmp0114 STREQUAL "NEW")
message(AUTHOR_WARNING
"Policy CMP0114 is not set to NEW. "
"In order to support the Xcode \"new build system\", "
"this project must be updated to set policy CMP0114 to NEW."
"\n"
"Since CMake is generating for the Xcode \"new build system\", "
"ExternalProject_Add will use policy CMP0114's NEW behavior anyway, "
"but the generated build system may not match what the project intends."
)
set(cmp0114 "NEW")
endif()
cmake_policy(GET CMP0135 _EP_CMP0135
PARENT_SCOPE # undocumented, do not use outside of CMake
)
_ep_get_configuration_subdir_genex(cfgdir)
# Add a custom target for the external project.
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
_ep_get_complete_stampfile(${name} complete_stamp_file)
cmake_policy(PUSH)
if(cmp0114 STREQUAL "NEW")
# To implement CMP0114 NEW behavior with Makefile generators,
# we need CMP0113 NEW behavior.
cmake_policy(SET CMP0113 NEW)
endif()
# The "ALL" option to add_custom_target just tells it to not set the
# EXCLUDE_FROM_ALL target property. Later, if the EXCLUDE_FROM_ALL
# argument was passed, we explicitly set it for the target.
add_custom_target(${name} ALL DEPENDS ${complete_stamp_file})
cmake_policy(POP)
set_target_properties(${name} PROPERTIES
_EP_IS_EXTERNAL_PROJECT 1
LABELS ${name}
FOLDER "ExternalProjectTargets/${name}"
_EP_CMP0114 "${cmp0114}"
)
set(keywords
macro(_ep_get_add_keywords out_var)
set(${out_var}
#
# Directory options
#
@ -4457,6 +4410,58 @@ function(ExternalProject_Add name)
#
EXTERNALPROJECT_INTERNAL_ARGUMENT_SEPARATOR
)
endmacro()
function(ExternalProject_Add name)
cmake_policy(GET CMP0097 _EP_CMP0097
PARENT_SCOPE # undocumented, do not use outside of CMake
)
cmake_policy(GET CMP0114 cmp0114
PARENT_SCOPE # undocumented, do not use outside of CMake
)
if(CMAKE_XCODE_BUILD_SYSTEM VERSION_GREATER_EQUAL 12 AND
NOT cmp0114 STREQUAL "NEW")
message(AUTHOR_WARNING
"Policy CMP0114 is not set to NEW. "
"In order to support the Xcode \"new build system\", "
"this project must be updated to set policy CMP0114 to NEW."
"\n"
"Since CMake is generating for the Xcode \"new build system\", "
"ExternalProject_Add will use policy CMP0114's NEW behavior anyway, "
"but the generated build system may not match what the project intends."
)
set(cmp0114 "NEW")
endif()
cmake_policy(GET CMP0135 _EP_CMP0135
PARENT_SCOPE # undocumented, do not use outside of CMake
)
_ep_get_configuration_subdir_genex(cfgdir)
# Add a custom target for the external project.
set(cmf_dir ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles)
_ep_get_complete_stampfile(${name} complete_stamp_file)
cmake_policy(PUSH)
if(cmp0114 STREQUAL "NEW")
# To implement CMP0114 NEW behavior with Makefile generators,
# we need CMP0113 NEW behavior.
cmake_policy(SET CMP0113 NEW)
endif()
# The "ALL" option to add_custom_target just tells it to not set the
# EXCLUDE_FROM_ALL target property. Later, if the EXCLUDE_FROM_ALL
# argument was passed, we explicitly set it for the target.
add_custom_target(${name} ALL DEPENDS ${complete_stamp_file})
cmake_policy(POP)
set_target_properties(${name} PROPERTIES
_EP_IS_EXTERNAL_PROJECT 1
LABELS ${name}
FOLDER "ExternalProjectTargets/${name}"
_EP_CMP0114 "${cmp0114}"
)
_ep_get_add_keywords(keywords)
_ep_parse_arguments(
ExternalProject_Add
"${keywords}"