| Jonathan Peyton | 2e01335 | 2015-07-15 16:05:30 +0000 | [diff] [blame] | 1 | # |
| 2 | #//===----------------------------------------------------------------------===// |
| 3 | #// |
| 4 | #// The LLVM Compiler Infrastructure |
| 5 | #// |
| 6 | #// This file is dual licensed under the MIT and the University of Illinois Open |
| 7 | #// Source Licenses. See LICENSE.txt for details. |
| 8 | #// |
| 9 | #//===----------------------------------------------------------------------===// |
| 10 | # |
| 11 | |
| 12 | # Checking a fortran compiler flag |
| 13 | # There is no real trivial way to do this in CMake, so we implement it here |
| 14 | # this will have ${boolean} = TRUE if the flag succeeds, otherwise false. |
| 15 | function(libomp_check_fortran_flag flag boolean) |
| 16 | if(NOT DEFINED "${boolean}") |
| 17 | set(retval TRUE) |
| 18 | set(fortran_source |
| 19 | " program hello |
| 20 | print *, \"Hello World!\" |
| 21 | end program hello") |
| 22 | |
| 23 | set(failed_regexes "[Ee]rror;[Uu]nknown;[Ss]kipping") |
| 24 | if(CMAKE_VERSION VERSION_GREATER 3.1 OR CMAKE_VERSION VERSION_EQUAL 3.1) |
| 25 | include(CheckFortranSourceCompiles) |
| 26 | check_fortran_source_compiles("${fortran_source}" ${boolean} FAIL_REGEX "${failed_regexes}") |
| 27 | set(${boolean} ${${boolean}} PARENT_SCOPE) |
| 28 | return() |
| 29 | else() |
| 30 | # Our manual check for cmake versions that don't have CheckFortranSourceCompiles |
| 31 | set(base_dir ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/fortran_flag_check) |
| 32 | file(MAKE_DIRECTORY ${base_dir}) |
| 33 | file(WRITE ${base_dir}/fortran_source.f "${fortran_source}") |
| 34 | |
| 35 | message(STATUS "Performing Test ${boolean}") |
| 36 | execute_process( |
| 37 | COMMAND ${CMAKE_Fortran_COMPILER} "${flag}" ${base_dir}/fortran_source.f |
| 38 | WORKING_DIRECTORY ${base_dir} |
| 39 | RESULT_VARIABLE exit_code |
| 40 | OUTPUT_VARIABLE OUTPUT |
| 41 | ERROR_VARIABLE OUTPUT |
| 42 | ) |
| 43 | |
| 44 | if(${exit_code} EQUAL 0) |
| 45 | foreach(regex IN LISTS failed_regexes) |
| 46 | if("${OUTPUT}" MATCHES ${regex}) |
| 47 | set(retval FALSE) |
| 48 | endif() |
| 49 | endforeach() |
| 50 | else() |
| 51 | set(retval FALSE) |
| 52 | endif() |
| 53 | |
| 54 | if(${retval}) |
| 55 | set(${boolean} 1 CACHE INTERNAL "Test ${boolean}") |
| 56 | message(STATUS "Performing Test ${boolean} - Success") |
| 57 | file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log |
| 58 | "Performing Fortran Compiler Flag test ${boolean} succeeded with the following output:\n" |
| 59 | "${OUTPUT}\n" |
| 60 | "Source file was:\n${fortran_source}\n") |
| 61 | else() |
| 62 | set(${boolean} "" CACHE INTERNAL "Test ${boolean}") |
| 63 | message(STATUS "Performing Test ${boolean} - Failed") |
| 64 | file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log |
| 65 | "Performing Fortran Compiler Flag test ${boolean} failed with the following output:\n" |
| 66 | "${OUTPUT}\n" |
| 67 | "Source file was:\n${fortran_source}\n") |
| 68 | endif() |
| 69 | endif() |
| 70 | |
| 71 | set(${boolean} ${retval} PARENT_SCOPE) |
| 72 | endif() |
| 73 | endfunction() |