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35 # Macro that runs through a number of tests for buggy compiler
36 # versions, or other potential problems.
37 macro(gmx_test_compiler_problems)
39 # Warn if C and C++ compilers do not match
40 if(NOT CMAKE_C_COMPILER_ID STREQUAL CMAKE_CXX_COMPILER_ID)
41 message(WARNING "The ids of the C and C++ compilers do not match (${CMAKE_C_COMPILER_ID} and ${CMAKE_CXX_COMPILER_ID}, respectively). Mixing different C/C++ compilers can cause problems.")
43 if(NOT CMAKE_C_COMPILER_VERSION STREQUAL CMAKE_CXX_COMPILER_VERSION)
44 message(WARNING "The versions of the C and C++ compilers do not match (${CMAKE_C_COMPILER_VERSION} and ${CMAKE_CXX_COMPILER_VERSION}, respectively). Mixing different C/C++ compilers can cause problems.")
47 # Note that we've already tested that the compiler works with C++11
48 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
50 # GCC bug 49001, 54412 on Windows (just warn, since it might be fixed in later versions)
51 if((CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.9.0" OR CMAKE_SIZEOF_VOID_P EQUAL 8)
53 AND (GMX_SIMD MATCHES "AVX") AND NOT (GMX_SIMD STREQUAL AVX_128_FMA))
54 message(WARNING "GCC on Windows (GCC older than 4.9 in 32-bit mode, or any version in 64-bit mode) with 256-bit AVX will probably crashes. You might want to choose a different GMX_SIMD or a different compiler.")
56 elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
57 if(WIN32 AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0")
58 message(WARNING "Using Clang on Windows requires Clang 3.5.0")
60 elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "PGI")
61 message(WARNING "Currently tested PGI compiler versions (up to 15.7) generate binaries that do not pass all regression test, and the generated binaries are significantly slower than with GCC, ICC or Clang. For now we do not recommend PGI beyond development testing - make sure to run the regressiontests.")
64 endmacro(gmx_test_compiler_problems)