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Fortran: Subsume F90 check into ABI check

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Follow the approach from commit 1d21dd0f7c (enable_language: Assume
compiler works if ABI detection compiles, 2020-05-25, v3.18.0-rc1~93^2)
to avoid a redundant check for F90 support.  Almost all maintained
Fortran compilers support F90 these days.

Fixes: #22222
This commit is contained in:
Michael Hirsch
2021-06-20 02:56:02 -04:00
committed by Brad King
parent a6b075c3f8
commit 97e2828d14
2 changed files with 56 additions and 1 deletions
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48
Modules/CMakeFortranCompilerABI.F90 Normal file
View File

@@ -0,0 +1,48 @@
program CMakeFortranCompilerABI
implicit none
integer :: i(1) = 0
where (i==0) i=1
if (any(i/=1)) stop 1
! showing Fortran 90 syntax is OK
#if 0
! Address Size
#endif
#if defined(_LP64)
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(_M_IA64)
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(_M_X64)
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(_M_AMD64)
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(__x86_64__)
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(_ILP32)
PRINT *, 'INFO:sizeof_dptr[4]'
#elif defined(_M_IX86)
PRINT *, 'INFO:sizeof_dptr[4]'
#elif defined(__i386__)
PRINT *, 'INFO:sizeof_dptr[4]'
#elif defined(__SIZEOF_POINTER__) && __SIZEOF_POINTER__ == 8
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(__SIZEOF_POINTER__) && __SIZEOF_POINTER__ == 4
PRINT *, 'INFO:sizeof_dptr[4]'
#elif defined(__SIZEOF_SIZE_T__) && __SIZEOF_SIZE_T__ == 8
PRINT *, 'INFO:sizeof_dptr[8]'
#elif defined(__SIZEOF_SIZE_T__) && __SIZEOF_SIZE_T__ == 4
PRINT *, 'INFO:sizeof_dptr[4]'
#endif
#if 0
! Application Binary Interface
#endif
#if defined(__ELF__)
PRINT *, 'INFO:abi[ELF]'
#endif
PRINT *, 'ABI Detection'
end program

9
Modules/CMakeTestFortranCompiler.cmake
View File

@@ -17,11 +17,18 @@ unset(CMAKE_Fortran_COMPILER_WORKS CACHE)
# Try to identify the ABI and configure it into CMakeFortranCompiler.cmake
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
CMAKE_DETERMINE_COMPILER_ABI(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F)
CMAKE_DETERMINE_COMPILER_ABI(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F90)
if(CMAKE_Fortran_ABI_COMPILED)
# The compiler worked so skip dedicated test below.
set(CMAKE_Fortran_COMPILER_WORKS TRUE)
set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 1)
message(STATUS "Check for working Fortran compiler: ${CMAKE_Fortran_COMPILER} - skipped")
else()
cmake_determine_compiler_abi(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F)
if(CMAKE_Fortran_ABI_COMPILED)
set(CMAKE_Fortran_COMPILER_WORKS TRUE)
message(STATUS "Check for working Fortran 77 compiler: ${CMAKE_Fortran_COMPILER} - skipped")
endif()
endif()
# This file is used by EnableLanguage in cmGlobalGenerator to