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