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33 lines
1.1 KiB
33 lines
1.1 KiB
5 years ago
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cmake_policy(SET CMP0048 NEW)
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cmake_policy(SET CMP0096 OLD)
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enable_language(C)
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include(CheckTypeSize)
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check_type_size(unsigned __sizeOfUnsigned BUILTIN_TYPES_ONLY LANGUAGE C)
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# We can't use math() to compute this because it only supports up to
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# 64-bit signed integers, so hard-code the types we expect to encounter
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if(__sizeOfUnsigned EQUAL 0)
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message(STATUS "Multi-architecture build, skipping project version check")
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return()
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elseif(__sizeOfUnsigned EQUAL 4)
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set(maxVal 4294967295)
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elseif(__sizeOfUnsigned EQUAL 8)
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set(maxVal 18446744073709551615)
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else()
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message(FATAL_ERROR
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"Test needs to be updated for unsigned integer size ${__sizeOfUnsigned}")
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endif()
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# The real value of this test is when an address sanitizer is enabled.
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# It catches situations where the size of the buffer used to compute or
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# hold the version components as strings is too small.
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project(ProjectA VERSION ${maxVal}.${maxVal}.${maxVal}.${maxVal} LANGUAGES NONE)
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if(NOT ${PROJECT_VERSION_MAJOR} EQUAL ${maxVal})
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message(FATAL_ERROR "Project version number parsing failed round trip.\n"
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"Expected: ${maxVal}\n"
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"Computed: ${PROJECT_VERSION_MAJOR}"
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)
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endif()
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