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21 lines
871 B
CMake
21 lines
871 B
CMake
# determine the target arch
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if (CROSS_COMPILE_AARCH64)
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set(ARCH_AARCH64 TRUE)
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set(ARCH_64_BIT TRUE)
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message(STATUS "Cross compiling for aarch64")
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else()
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# really only interested in the preprocessor here
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CHECK_C_SOURCE_COMPILES("#if !(defined(__x86_64__) || defined(_M_X64))\n#error not 64bit\n#endif\nint main(void) { return 0; }" ARCH_X86_64)
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CHECK_C_SOURCE_COMPILES("#if !(defined(__i386__) || defined(_M_IX86))\n#error not 32bit\n#endif\nint main(void) { return 0; }" ARCH_IA32)
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CHECK_C_SOURCE_COMPILES("#if !defined(__ARM_ARCH_ISA_A64)\n#error not 64bit\n#endif\nint main(void) { return 0; }" ARCH_AARCH64)
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CHECK_C_SOURCE_COMPILES("#if !defined(__ARM_ARCH_ISA_ARM)\n#error not 32bit\n#endif\nint main(void) { return 0; }" ARCH_ARM32)
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if (ARCH_X86_64 OR ARCH_AARCH64)
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set(ARCH_64_BIT TRUE)
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else()
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set(ARCH_32_BIT TRUE)
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endif()
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endif() |