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https://github.com/JGRennison/OpenTTD-patches.git
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21 lines
806 B
CMake
21 lines
806 B
CMake
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# LibLZMA is a recent addition to the emscripten SDK, so it is possible
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# someone hasn't updated his SDK yet. Test out if the SDK supports LibLZMA.
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include(CheckCXXSourceCompiles)
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set(CMAKE_REQUIRED_FLAGS "-sUSE_LIBLZMA=1")
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check_cxx_source_compiles("
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#include <lzma.h>
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int main() { return 0; }"
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LIBLZMA_FOUND
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)
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if (LIBLZMA_FOUND)
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add_library(LibLZMA::LibLZMA INTERFACE IMPORTED)
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set_target_properties(LibLZMA::LibLZMA PROPERTIES
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INTERFACE_COMPILE_OPTIONS "-sUSE_LIBLZMA=1"
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INTERFACE_LINK_LIBRARIES "-sUSE_LIBLZMA=1"
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)
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else()
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message(WARNING "You are using an emscripten SDK without LibLZMA support. Many savegames won't be able to load in OpenTTD. Please apply 'emsdk-liblzma.patch' to your local emsdk installation.")
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endif()
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