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CMake: allow to only build Core and Onone when building the stdlib #69747

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Merged
merged 1 commit into from
Nov 9, 2023
Merged

CMake: allow to only build Core and Onone when building the stdlib #69747

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7 changes: 7 additions & 0 deletions stdlib/cmake/modules/StdlibOptions.cmake
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Expand Up @@ -99,6 +99,13 @@ option(SWIFT_STDLIB_EMIT_API_DESCRIPTORS
"Emit api descriptors for the standard library"
FALSE)

option(SWIFT_STDLIB_BUILD_ONLY_CORE_MODULES
"Build only the core subset of the standard library,
ignoring additional libraries such as Concurrency, Distributed and StringProcessing.
This is an option meant for internal configurations inside Apple
that need to build the standard libraries in chunks when constructing an SDK"
FALSE)

if("${SWIFT_HOST_VARIANT_SDK}" IN_LIST SWIFT_DARWIN_PLATFORMS)
set(SWIFT_STDLIB_ENABLE_PRESPECIALIZATION_default TRUE)
elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "LINUX")
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5 changes: 5 additions & 0 deletions stdlib/public/CMakeLists.txt
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Expand Up @@ -166,7 +166,12 @@ if(SWIFT_BUILD_STDLIB)
add_subdirectory(stubs)
add_subdirectory(core)
add_subdirectory(SwiftOnoneSupport)
endif()

if(SWIFT_BUILD_STDLIB AND NOT SWIFT_STDLIB_BUILD_ONLY_CORE_MODULES)
# In some internal Apple configurations we have the need
# to build Core and Onone separately from the rest
# of the stdlib
if(SWIFT_ENABLE_EXPERIMENTAL_DIFFERENTIABLE_PROGRAMMING)
add_subdirectory(Differentiation)
endif()
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