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#
# Copyright by The HDF Group.
# All rights reserved.
#
# This file is part of HDF5. The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the COPYING file, which can be found at the root of the source code
# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.
#
#
# This file provides functions for Fortran support.
#
#-------------------------------------------------------------------------------
ENABLE_LANGUAGE (Fortran)
set (HDF_PREFIX "H5")
#-------------------------------------------------------------------------------
# Fix Fortran flags if we are compiling staticly on Windows using
# Windows_MT.cmake from config/cmake/UserMacros
#-------------------------------------------------------------------------------
if (BUILD_STATIC_CRT_LIBS)
TARGET_STATIC_CRT_FLAGS ()
endif ()
#-----------------------------------------------------------------------------
# Detect name mangling convention used between Fortran and C
#-----------------------------------------------------------------------------
include (FortranCInterface)
FortranCInterface_HEADER (
${CMAKE_BINARY_DIR}/FCMangle.h
MACRO_NAMESPACE "H5_FC_"
SYMBOL_NAMESPACE "H5_FC_"
)
file (STRINGS ${CMAKE_BINARY_DIR}/FCMangle.h CONTENTS REGEX "H5_FC_GLOBAL\\(.*,.*\\) +(.*)")
string (REGEX MATCH "H5_FC_GLOBAL\\(.*,.*\\) +(.*)" RESULT ${CONTENTS})
set (H5_FC_FUNC "H5_FC_FUNC(name,NAME) ${CMAKE_MATCH_1}")
file (STRINGS ${CMAKE_BINARY_DIR}/FCMangle.h CONTENTS REGEX "H5_FC_GLOBAL_\\(.*,.*\\) +(.*)")
string (REGEX MATCH "H5_FC_GLOBAL_\\(.*,.*\\) +(.*)" RESULT ${CONTENTS})
set (H5_FC_FUNC_ "H5_FC_FUNC_(name,NAME) ${CMAKE_MATCH_1}")
#-----------------------------------------------------------------------------
# The provided CMake Fortran macros don't provide a general check function
# so this one is used for a sizeof test.
#-----------------------------------------------------------------------------
macro (CHECK_FORTRAN_FEATURE FUNCTION CODE VARIABLE)
message (STATUS "Testing Fortran ${FUNCTION}")
if (HDF5_REQUIRED_LIBRARIES)
set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${HDF5_REQUIRED_LIBRARIES}")
else ()
set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
endif ()
file (WRITE
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f90
"${CODE}"
)
TRY_COMPILE (RESULT_VAR
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler.f90
CMAKE_FLAGS "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
OUTPUT_VARIABLE OUTPUT
)
# message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
# message ( "Test result ${OUTPUT}")
# message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
if (${RESULT_VAR})
set (${VARIABLE} 1 CACHE INTERNAL "Have Fortran function ${FUNCTION}")
message (STATUS "Testing Fortran ${FUNCTION} - OK")
file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the Fortran ${FUNCTION} exists passed with the following output:\n"
"${OUTPUT}\n\n"
)
else ()
message (STATUS "Testing Fortran ${FUNCTION} - Fail")
set (${VARIABLE} 0 CACHE INTERNAL "Have Fortran function ${FUNCTION}")
file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the Fortran ${FUNCTION} exists failed with the following output:\n"
"${OUTPUT}\n\n")
endif ()
endmacro ()
#-----------------------------------------------------------------------------
# Configure Checks which require Fortran compilation must go in here
# not in the main ConfigureChecks.cmake files, because if the user has
# no Fortran compiler, problems arise.
#
# Be careful with leading spaces here, do not remove them.
#-----------------------------------------------------------------------------
# Check for Non-standard extension intrinsic function SIZEOF
set (${HDF_PREFIX}_FORTRAN_HAVE_SIZEOF FALSE)
CHECK_FORTRAN_FEATURE(sizeof
"
PROGRAM main
i = sizeof(x)
END PROGRAM
"
${HDF_PREFIX}_FORTRAN_HAVE_SIZEOF
)
# Check for F2008 standard intrinsic function C_SIZEOF
set (${HDF_PREFIX}_FORTRAN_HAVE_C_SIZEOF FALSE)
CHECK_FORTRAN_FEATURE(c_sizeof
"
PROGRAM main
USE ISO_C_BINDING
INTEGER(C_INT) :: a
INTEGER(C_SIZE_T) :: result
result = c_sizeof(a)
END PROGRAM
"
${HDF_PREFIX}_FORTRAN_HAVE_C_SIZEOF
)
# Check for F2008 standard intrinsic function STORAGE_SIZE
CHECK_FORTRAN_FEATURE(storage_size
"
PROGRAM main
INTEGER :: a
INTEGER :: result
result = storage_size(a)
END PROGRAM
"
${HDF_PREFIX}_FORTRAN_HAVE_STORAGE_SIZE
)
# Check for F2008 standard intrinsic module "ISO_FORTRAN_ENV"
set (${HDF_PREFIX}_HAVE_ISO_FORTRAN_ENV FALSE)
CHECK_FORTRAN_FEATURE(ISO_FORTRAN_ENV
"
PROGRAM main
USE, INTRINSIC :: ISO_FORTRAN_ENV
END PROGRAM
"
${HDF_PREFIX}_HAVE_ISO_FORTRAN_ENV
)
set (${HDF_PREFIX}_FORTRAN_DEFAULT_REAL_NOT_DOUBLE FALSE)
CHECK_FORTRAN_FEATURE(RealIsNotDouble
"
MODULE type_mod
INTERFACE h5t
MODULE PROCEDURE h5t_real
MODULE PROCEDURE h5t_dble
END INTERFACE
CONTAINS
SUBROUTINE h5t_real(r)
REAL :: r
END SUBROUTINE h5t_real
SUBROUTINE h5t_dble(d)
DOUBLE PRECISION :: d
END SUBROUTINE h5t_dble
END MODULE type_mod
PROGRAM main
USE type_mod
REAL :: r
DOUBLE PRECISION :: d
CALL h5t(r)
CALL h5t(d)
END PROGRAM main
"
${HDF_PREFIX}_FORTRAN_DEFAULT_REAL_NOT_DOUBLE
)
#-----------------------------------------------------------------------------
# Checks if the ISO_C_BINDING module meets all the requirements
#-----------------------------------------------------------------------------
set (${HDF_PREFIX}_FORTRAN_HAVE_ISO_C_BINDING FALSE)
CHECK_FORTRAN_FEATURE(iso_c_binding
"
PROGRAM main
USE iso_c_binding
IMPLICIT NONE
TYPE(C_PTR) :: ptr
TYPE(C_FUNPTR) :: funptr
INTEGER(C_INT64_T) :: c_int64_type
CHARACTER(LEN=80, KIND=c_char), TARGET :: ichr
ptr = C_LOC(ichr(1:1))
END PROGRAM
"
${HDF_PREFIX}_FORTRAN_HAVE_ISO_C_BINDING
)
#-----------------------------------------------------------------------------
# Add debug information (intel Fortran : JB)
#-----------------------------------------------------------------------------
if (CMAKE_Fortran_COMPILER MATCHES ifort)
if (WIN32)
set (CMAKE_Fortran_FLAGS_DEBUG "/debug:full /dbglibs " CACHE "flags" STRING FORCE)
set (CMAKE_EXE_LINKER_FLAGS_DEBUG "/DEBUG" CACHE "flags" STRING FORCE)
endif ()
endif ()
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