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72e7c45e98
Since 3.19, CMake generates a deprecation warning when using a minimum version less than 2.8.12. This eliminates those warnings generated during tests, which are typically hidden from the user and developer but are being generated nonetheless.
110 lines
2.7 KiB
CMake
110 lines
2.7 KiB
CMake
cmake_minimum_required(VERSION 2.8.12)
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project(CheckCompilerRelatedVariables)
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function(echo_var var)
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if(DEFINED ${var})
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message("${var}='${${var}}' is defined")
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else()
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message("${var}='${${var}}' is NOT defined")
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endif()
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endfunction()
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#
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# Check that the correct number of MSVC** variables are defined...
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#
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set(msvc_total 0)
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if(DEFINED MSVC60)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC70)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC71)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC80)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC90)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC10)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC11)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC12)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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if(DEFINED MSVC14)
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math(EXPR msvc_total "${msvc_total} + 1")
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endif()
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echo_var(MSVC)
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echo_var(MSVC60)
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echo_var(MSVC70)
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echo_var(MSVC71)
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echo_var(MSVC80)
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echo_var(MSVC90)
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echo_var(MSVC10)
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echo_var(MSVC11)
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echo_var(MSVC12)
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echo_var(MSVC14)
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echo_var(MSVC_IDE)
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if(MSVC)
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#
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# MSVC is set in cl.cmake when cl is the compiler...
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#
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# Exactly one of the numbered variables should also be set
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# indicating which version of the cl compiler / Visual Studio
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# is in use...
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#
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if(msvc_total EQUAL 1)
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message("test passes: exactly one MSVC** variable is defined...")
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else()
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message(FATAL_ERROR "error: ${msvc_total} MSVC** variables are defined -- exactly 1 expected")
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endif()
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if(NOT DEFINED MSVC_IDE)
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message(FATAL_ERROR "MSVC_IDE not defined but should be!")
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elseif("${CMAKE_GENERATOR}" MATCHES "Visual Studio" AND NOT MSVC_IDE)
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message(FATAL_ERROR "MSVC_IDE is not true but should be (${CMAKE_GENERATOR})!")
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elseif(NOT "${CMAKE_GENERATOR}" MATCHES "Visual Studio" AND MSVC_IDE)
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message(FATAL_ERROR "MSVC_IDE is true but should not be (${CMAKE_GENERATOR})!")
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endif()
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else()
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#
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# The compiler is something other than cl... None of the MSVC** variables
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# should be defined...
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#
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if(msvc_total EQUAL 0)
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message("test passes: no MSVC** variables are defined on non-MSVC build...")
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else()
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message(FATAL_ERROR "error: ${msvc_total} MSVC** variables are defined -- exactly 0 expected")
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endif()
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if(DEFINED MSVC_IDE)
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message(FATAL_ERROR "MSVC_IDE is defined but should not be!")
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endif()
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endif()
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#
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# This is a no-op executable... If this test is going to fail, it fails during
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# the configure step while cmake is configuring this CMakeLists.txt file...
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#
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file(WRITE
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"${CMAKE_CURRENT_BINARY_DIR}/main.cxx"
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"int main() { return 0; }
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"
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)
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add_executable(
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CheckCompilerRelatedVariables
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"${CMAKE_CURRENT_BINARY_DIR}/main.cxx"
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)
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