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56e5cea600
Wire up the flags needed to support module libraries built and used with Swift. We need to pass `-bundle` to the linker when linking module libraries on Darwin, and we need to pass `-export-dynamic` to the linker when emitting an executable that exports symbols on Linux. This patch wires up `CMAKE_SHARED_MODULE_CREATE_Swift_FLAGS` and `CMAKE_SHARED_MODULE_LOADER_Swift_FLAG` on Darwin, and hooks up `CMAKE_EXE_EXPORTS_Swift_FLAG` on Linux in order to support passing things correctly. We can't expose `CMAKE_EXE_LINKER_FLAGS` to Swift, as it contains flags that the Swift compiler doesn't recognize, but the other language-specific variables are safe to expose.
18 lines
828 B
CMake
18 lines
828 B
CMake
set(CMAKE_Swift_SYSROOT_FLAG "-sdk")
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# Linker Selections
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if("${CMAKE_GENERATOR}" STREQUAL Xcode)
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# Xcode always uses clang to link, regardless of what the cmake link language
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# is. Pass the clang flags when linking with Xcode.
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set(CMAKE_Swift_USING_LINKER_APPLE_CLASSIC "-fuse-ld=ld" "LINKER:-ld_classic")
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set(CMAKE_Swift_USING_LINKER_LLD "-fuse-ld=lld")
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set(CMAKE_Swift_USING_LINKER_SYSTEM "-fuse-ld=ld")
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set(CMAKE_SHARED_MODULE_LOADER_Swift_FLAG "-Wl,-bundle_loader,")
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else()
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set(CMAKE_Swift_USING_LINKER_APPLE_CLASSIC "-use-ld=ld" "LINKER:-ld_classic")
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set(CMAKE_Swift_USING_LINKER_LLD "-use-ld=lld")
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set(CMAKE_Swift_USING_LINKER_SYSTEM "-use-ld=ld")
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set(CMAKE_SHARED_MODULE_LOADER_Swift_FLAG "-Xclang-linker -Wl,-bundle_loader,")
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set(CMAKE_SHARED_MODULE_CREATE_Swift_FLAGS "-Xlinker -bundle")
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endif()
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