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hdf5/config/cmake/HDF5UseFortran.cmake
Jerome Soumagne a9da5b8cc5 [svn-r28131] Cleanup cmake output of HDF5UseFortran
2015-10-19 15:32:49 -05:00

490 lines
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CMake
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## Check for non-standard extenstion quadmath.h
CHECK_INCLUDE_FILES(quadmath.h C_HAVE_QUADMATH)
if (${C_HAVE_QUADMATH})
set(HAVE_QUADMATH 1)
else ()
set(HAVE_QUADMATH 0)
endif()
#
# This file provides functions for HDF5 specific Fortran support.
#
#-------------------------------------------------------------------------------
ENABLE_LANGUAGE (Fortran)
# The provided CMake Fortran macros don't provide a general compile/run function
# so this one is used.
#-----------------------------------------------------------------------------
MACRO (FORTRAN_RUN FUNCTION CODE RUN_RESULT_VAR1 COMPILE_RESULT_VAR RETURN)
# MSB CHECK WHY THIS CHECK?
# if (NOT DEFINED ${RUN_RESULT_VAR})
message (STATUS "Detecting Fortran ${FUNCTION}")
if (CMAKE_REQUIRED_LIBRARIES)
set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
else (CMAKE_REQUIRED_LIBRARIES)
set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
endif (CMAKE_REQUIRED_LIBRARIES)
file (WRITE
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler1.f90
"${CODE}"
)
TRY_RUN (RUN_RESULT_VAR COMPILE_RESULT_VAR
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompiler1.f90
CMAKE_FLAGS "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
RUN_OUTPUT_VARIABLE OUTPUT
)
set(${RETURN} ${OUTPUT})
#message ( "Test result1 ${RETURN} ")
#message ( "Test result3 ${RESULT} ")
#message ( "Test result2 ${CMAKE_MATCH_0} ")
#message ( "Test result4 ${CMAKE_MATCH_1} ")
#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
#message ( "Test result2 ${COMPILE_RESULT_VAR} ")
#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
#message ( "Test result1 ${RUN_RESULT_VAR} ")
#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
if (${COMPILE_RESULT_VAR})
if (${RUN_RESULT_VAR} MATCHES 0)
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")
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 ()
endif ()
# endif (NOT DEFINED ${RUN_RESULT_VAR})
ENDMACRO (FORTRAN_RUN)
#-----------------------------------------------------------------------------
# Check to see C_LONG_DOUBLE is available
CHECK_FORTRAN_FEATURE(c_long_double
"
PROGRAM main
USE ISO_C_BINDING
REAL(KIND=C_LONG_DOUBLE) :: d
END PROGRAM
"
FORTRAN_HAVE_C_LONG_DOUBLE
)
if (${FORTRAN_HAVE_C_LONG_DOUBLE})
set(FORTRAN_HAVE_C_LONG_DOUBLE 1)
else ()
set(FORTRAN_HAVE_C_LONG_DOUBLE 0)
endif()
# Check to see C_LONG_DOUBLE is different from C_DOUBLE
CHECK_FORTRAN_FEATURE(c_long_double
"
MODULE type_mod
USE ISO_C_BINDING
INTERFACE h5t
MODULE PROCEDURE h5t_c_double
MODULE PROCEDURE h5t_c_long_double
END INTERFACE
CONTAINS
SUBROUTINE h5t_c_double(r)
REAL(KIND=C_DOUBLE) :: r
END SUBROUTINE h5t_c_double
SUBROUTINE h5t_c_long_double(d)
REAL(KIND=C_LONG_DOUBLE) :: d
END SUBROUTINE h5t_c_long_double
END MODULE type_mod
PROGRAM main
USE ISO_C_BINDING
USE type_mod
REAL(KIND=C_DOUBLE) :: r
REAL(KIND=C_LONG_DOUBLE) :: d
CALL h5t(r)
CALL h5t(d)
END PROGRAM main
"
FORTRAN_C_LONG_DOUBLE_IS_UNIQUE
)
if (${FORTRAN_C_LONG_DOUBLE_IS_UNIQUE})
set(FORTRAN_C_LONG_DOUBLE_IS_UNIQUE 1)
else ()
set(FORTRAN_C_LONG_DOUBLE_IS_UNIQUE 0)
endif()
## Set the sizeof function for use later in the fortran tests
if(FORTRAN_HAVE_STORAGE_SIZE)
set(FC_SIZEOF_A "STORAGE_SIZE(a, c_size_t)/STORAGE_SIZE(c_char_'a',c_size_t)")
set(FC_SIZEOF_B "STORAGE_SIZE(b, c_size_t)/STORAGE_SIZE(c_char_'a',c_size_t)")
set(FC_SIZEOF_C "STORAGE_SIZE(c, c_size_t)/STORAGE_SIZE(c_char_'a',c_size_t)")
elseif(FORTRAN_HAVE_C_SIZEOF)
set(FC_SIZEOF_A "SIZEOF(a)")
set(FC_SIZEOF_B "SIZEOF(b)")
set(FC_SIZEOF_C "SIZEOF(c)")
else(FORTRAN_HAVE_STORAGE_SIZE)
message (FATAL_ERROR "Fortran compiler requires either intrinsic functions SIZEOF or STORAGE_SIZE")
endif(FORTRAN_HAVE_STORAGE_SIZE)
#-----------------------------------------------------------------------------
# Determine the available KINDs for REALs and INTEGERs
#-----------------------------------------------------------------------------
FORTRAN_RUN("REAL and INTEGER KINDs"
"
PROGRAM main
IMPLICIT NONE
INTEGER :: ik, k, lastkind, max_decimal_prec
INTEGER :: num_rkinds, num_ikinds
num_ikinds = 0
lastkind=SELECTED_INT_KIND(1)
! Find integer KINDs
DO ik=2,36
k = SELECTED_INT_KIND(ik)
IF (k .NE. lastkind) THEN
num_ikinds = num_ikinds + 1
WRITE(*,'(I0)',ADVANCE='NO') lastkind
lastkind = k
IF(k.GT.0) WRITE(*,'(A)',ADVANCE='NO') ','
ENDIF
IF (k .LE. 0) EXIT
ENDDO
IF (lastkind.NE.-1) THEN
num_ikinds = num_ikinds + 1
WRITE(*,'(I0)') lastkind
ELSE
WRITE(*,'()')
ENDIF
! Find real KINDs
num_rkinds = 0
lastkind=SELECTED_REAL_KIND(1)
max_decimal_prec = 1
DO ik=2,36
k = SELECTED_REAL_KIND(ik)
IF (k .NE. lastkind) THEN
num_rkinds = num_rkinds + 1
WRITE(*,'(I0)',ADVANCE='NO') lastkind
lastkind = k
IF(k.GT.0) WRITE(*,'(A)',ADVANCE='NO') ','
max_decimal_prec = ik
ENDIF
IF (k .LE. 0) EXIT
ENDDO
IF (lastkind.NE.-1)THEN
num_rkinds = num_rkinds + 1
WRITE(*,'(I0)') lastkind
ELSE
WRITE(*,'()')
ENDIF
WRITE(*,'(I0)') max_decimal_prec
WRITE(*,'(I0)') num_ikinds
WRITE(*,'(I0)') num_rkinds
END
"
XX
YY
PROG_OUTPUT
)
# dnl The output from the above program will be:
# dnl -- LINE 1 -- valid integer kinds (comma seperated list)
# dnl -- LINE 2 -- valid real kinds (comma seperated list)
# dnl -- LINE 3 -- max decimal precision for reals
# dnl -- LINE 4 -- number of valid integer kinds
# dnl -- LINE 5 -- number of valid real kinds
# Convert the string to a list of strings by replacing the carriage return with a semicolon
string(REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
list(GET PROG_OUTPUT 0 pac_validIntKinds)
list(GET PROG_OUTPUT 1 pac_validRealKinds)
list(GET PROG_OUTPUT 2 H5_PAC_FC_MAX_REAL_PRECISION)
set(PAC_FC_ALL_INTEGER_KINDS "\{${pac_validIntKinds}\}")
set(PAC_FC_ALL_REAL_KINDS "\{${pac_validRealKinds}\}")
list(GET PROG_OUTPUT 3 NUM_IKIND)
list(GET PROG_OUTPUT 4 NUM_RKIND)
set(H5CONFIG_F_NUM_IKIND "INTEGER, PARAMETER :: num_ikinds = ${NUM_IKIND}")
set(H5CONFIG_F_IKIND "INTEGER, DIMENSION(1:num_ikinds) :: ikind = (/${pac_validIntKinds}/)")
message (STATUS "....REAL KINDS FOUND ${PAC_FC_ALL_REAL_KINDS}")
message (STATUS "....INTEGER KINDS FOUND ${PAC_FC_ALL_REAL_KINDS}")
message (STATUS "....MAX DECIMAL PRECISION ${H5_PAC_FC_MAX_REAL_PRECISION}")
#-----------------------------------------------------------------------------
# Determine the available KINDs for REALs and INTEGERs
#-----------------------------------------------------------------------------
# **********
# INTEGERS
# **********
string(REGEX REPLACE "," ";" VAR "${pac_validIntKinds}")
foreach( KIND ${VAR} )
set(PROG_SRC
"
PROGRAM main
USE ISO_C_BINDING
IMPLICIT NONE
INTEGER (KIND=${KIND}) a
WRITE(*,'(I0)') ${FC_SIZEOF_A}
END
"
)
FORTRAN_RUN("INTEGER KIND SIZEOF" ${PROG_SRC}
XX
YY
PROG_OUTPUT1
)
string(REGEX REPLACE "\n" "" PROG_OUTPUT1 "${PROG_OUTPUT1}")
set(pack_int_sizeof "${pack_int_sizeof} ${PROG_OUTPUT1},")
endforeach(KIND)
string(STRIP ${pack_int_sizeof} pack_int_sizeof)
#Remove trailing comma
string(REGEX REPLACE ",$" "" pack_int_sizeof "${pack_int_sizeof}")
#Remove spaces
string(REGEX REPLACE " " "" pack_int_sizeof "${pack_int_sizeof}")
set(PAC_FC_ALL_INTEGER_KINDS_SIZEOF "\{${pack_int_sizeof}\}")
message(STATUS "....FOUND SIZEOF for INTEGER KINDs ${PAC_FC_ALL_INTEGER_KINDS_SIZEOF}")
# **********
# REALS
# **********
string(REGEX REPLACE "," ";" VAR "${pac_validRealKinds}")
#find the maximum kind of the real
list(LENGTH VAR LEN_VAR)
MATH (EXPR _LEN "${LEN_VAR}-1")
list(GET VAR ${_LEN} max_real_fortran_kind)
foreach( KIND ${VAR} )
set(PROG_SRC
"
PROGRAM main
USE ISO_C_BINDING
IMPLICIT NONE
REAL (KIND=${KIND}) a
WRITE(*,'(I0)') ${FC_SIZEOF_A}
END
"
)
FORTRAN_RUN("REAL KIND SIZEOF" ${PROG_SRC}
XX
YY
PROG_OUTPUT1
)
string(REGEX REPLACE "\n" "" PROG_OUTPUT1 "${PROG_OUTPUT1}")
set(pack_real_sizeof "${pack_real_sizeof} ${PROG_OUTPUT1},")
endforeach(KIND)
string(STRIP ${pack_real_sizeof} pack_real_sizeof)
#Remove trailing comma
string(REGEX REPLACE ",$" "" pack_real_sizeof "${pack_real_sizeof}")
#Remove spaces
string(REGEX REPLACE " " "" pack_real_sizeof "${pack_real_sizeof}")
set(H5CONFIG_F_RKIND_SIZEOF "INTEGER, DIMENSION(1:num_rkinds) :: rkind_sizeof = (/${pack_real_sizeof}/)")
message(STATUS "....FOUND SIZEOF for REAL KINDs \{${pack_real_sizeof}\}")
set(PAC_FC_ALL_REAL_KINDS_SIZEOF "\{${pack_real_sizeof}\}")
#find the maximum kind of the real
string(REGEX REPLACE "," ";" VAR "${pack_real_sizeof}")
list(LENGTH VAR LEN_VAR)
MATH (EXPR _LEN "${LEN_VAR}-1")
list(GET VAR ${_LEN} max_real_fortran_sizeof)
#-----------------------------------------------------------------------------
# Find sizeof of native kinds
#-----------------------------------------------------------------------------
FORTRAN_RUN("SIZEOF NATIVE KINDs"
"
PROGRAM main
USE ISO_C_BINDING
IMPLICIT NONE
INTEGER a
REAL b
DOUBLE PRECISION c
WRITE(*,*) ${FC_SIZEOF_A}
WRITE(*,*) kind(a)
WRITE(*,*) ${FC_SIZEOF_B}
WRITE(*,*) kind(b)
WRITE(*,*) ${FC_SIZEOF_C}
WRITE(*,*) kind(c)
END
"
XX
YY
PROG_OUTPUT
)
# dnl The output from the above program will be:
# dnl -- LINE 1 -- sizeof INTEGER
# dnl -- LINE 2 -- kind of INTEGER
# dnl -- LINE 3 -- sizeof REAL
# dnl -- LINE 4 -- kind of REAL
# dnl -- LINE 5 -- sizeof DOUBLE PRECISION
# dnl -- LINE 6 -- kind of DOUBLE PRECISION
# Convert the string to a list of strings by replacing the carriage return with a semicolon
string(REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
list(GET PROG_OUTPUT 0 PAC_FORTRAN_NATIVE_INTEGER_SIZEOF)
list(GET PROG_OUTPUT 1 PAC_FORTRAN_NATIVE_INTEGER_KIND)
list(GET PROG_OUTPUT 2 PAC_FORTRAN_NATIVE_REAL_SIZEOF)
list(GET PROG_OUTPUT 3 PAC_FORTRAN_NATIVE_REAL_KIND)
list(GET PROG_OUTPUT 4 PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF)
list(GET PROG_OUTPUT 5 PAC_FORTRAN_NATIVE_DOUBLE_KIND)
set(FORTRAN_SIZEOF_LONG_DOUBLE ${${HDF_PREFIX}_SIZEOF_LONG_DOUBLE})
#set(H5_SIZEOF_LONG_DOUBLE ${${HDF_PREFIX}_SIZEOF_LONG_DOUBLE})
# remove the invalid kind from the list
if(NOT(${SIZEOF___FLOAT128} EQUAL 0))
if(NOT(${SIZEOF___FLOAT128} EQUAL ${max_real_fortran_sizeof})
AND NOT(${FORTRAN_SIZEOF_LONG_DOUBLE} EQUAL ${max_real_fortran_sizeof})
# account for the fact that the C compiler can have 16-byte __float128 and the fortran compiler only has 8-byte doubles,
# so we don't want to remove the 8-byte fortran doubles.
AND NOT(${PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF} EQUAL ${max_real_fortran_sizeof}))
message(WARNING "
Fortran REAL(KIND=${max_real_fortran_kind}) is $max_real_fortran_sizeof Bytes, but no corresponding C float type exists of that size
!!! Fortran interfaces will not be generated for REAL(KIND=${max_real_fortran_kind}) !!!")
string(REGEX REPLACE ",[0-9]+}" "}" PAC_FC_ALL_REAL_KINDS ${PAC_FC_ALL_REAL_KINDS})
string(REGEX REPLACE ",[0-9]+}" "}" PAC_FC_ALL_REAL_KINDS_SIZEOF ${PAC_FC_ALL_REAL_KINDS_SIZEOF})
MATH (EXPR NUM_RKIND "${NUM_RKIND} - 1")
endif()
endif(NOT(${SIZEOF___FLOAT128} EQUAL 0))
set(H5CONFIG_F_NUM_RKIND "INTEGER, PARAMETER :: num_rkinds = ${NUM_RKIND}")
string(REGEX REPLACE "{" "" OUT_VAR ${PAC_FC_ALL_REAL_KINDS})
string(REGEX REPLACE "}" "" OUT_VAR ${OUT_VAR})
set(H5CONFIG_F_RKIND "INTEGER, DIMENSION(1:num_rkinds) :: rkind = (/${OUT_VAR}/)")
string(REGEX REPLACE "{" "" OUT_VAR ${PAC_FC_ALL_REAL_KINDS_SIZEOF})
string(REGEX REPLACE "}" "" OUT_VAR ${OUT_VAR})
set(H5CONFIG_F_RKIND_SIZEOF "INTEGER, DIMENSION(1:num_rkinds) :: rkind_sizeof = (/${OUT_VAR}/)")
ENABLE_LANGUAGE (C)
#-----------------------------------------------------------------------------
# The provided CMake C macros don't provide a general compile/run function
# so this one is used.
#-----------------------------------------------------------------------------
MACRO (C_RUN FUNCTION CODE RETURN)
message (STATUS "Detecting C ${FUNCTION}")
if (CMAKE_REQUIRED_LIBRARIES)
set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
else (CMAKE_REQUIRED_LIBRARIES)
set (CHECK_FUNCTION_EXISTS_ADD_LIBRARIES)
endif (CMAKE_REQUIRED_LIBRARIES)
file (WRITE
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler1.c
${CODE}
)
TRY_RUN (RUN_RESULT_VAR COMPILE_RESULT_VAR
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testCCompiler1.c
CMAKE_FLAGS "${CHECK_FUNCTION_EXISTS_ADD_LIBRARIES}"
RUN_OUTPUT_VARIABLE OUTPUT
)
set(${RETURN} ${OUTPUT})
#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
#message ( "Test COMPILE_RESULT_VAR ${COMPILE_RESULT_VAR} ")
#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
#message ( "Test RUN_RESULT_VAR ${RUN_RESULT_VAR} ")
#message ( "* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ")
if (${COMPILE_RESULT_VAR})
if (${RUN_RESULT_VAR} MATCHES 1)
set (${RUN_RESULT_VAR} 1 CACHE INTERNAL "Have C function ${FUNCTION}")
message (STATUS "Testing C ${FUNCTION} - OK")
file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Determining if the C ${FUNCTION} exists passed with the following output:\n"
"${OUTPUT}\n\n"
)
else ()
message (STATUS "Testing C ${FUNCTION} - Fail")
set (${RUN_RESULT_VAR} 0 CACHE INTERNAL "Have C function ${FUNCTION}")
file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Determining if the C ${FUNCTION} exists failed with the following output:\n"
"${OUTPUT}\n\n")
endif ()
else ()
message (FATAL_ERROR "Compilation of C ${FUNCTION} - Failed")
endif()
ENDMACRO (C_RUN)
set(PROG_SRC
"
#include <float.h>
#include <stdio.h>
#define CHECK_FLOAT128 ${SIZEOF___FLOAT128}
#if CHECK_FLOAT128!=0
# if ${HAVE_QUADMATH}!=0
#include <quadmath.h>
# endif
# ifdef FLT128_DIG
#define C_FLT128_DIG FLT128_DIG
# else
#define C_FLT128_DIG 0
# endif
#else
#define C_FLT128_DIG 0
#endif
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#define C_LDBL_DIG DECIMAL_DIG
#else
#define C_LDBL_DIG LDBL_DIG
#endif
int main() {
printf(\"%d\\\\n%d\\\\n\", C_LDBL_DIG, C_FLT128_DIG)\\\;
return 1\\\;
}
"
)
C_RUN("maximum decimal precision for C" ${PROG_SRC} PROG_OUTPUT)
# dnl The output from the above program will be:
# dnl -- LINE 1 -- long double decimal precision
# dnl -- LINE 2 -- __float128 decimal precision
# Convert the string to a list of strings by replacing the carriage return with a semicolon
string(REGEX REPLACE "\n" ";" PROG_OUTPUT "${PROG_OUTPUT}")
list(GET PROG_OUTPUT 0 LDBL_DIG)
list(GET PROG_OUTPUT 1 FLT128_DIG)
if(SIZEOF___FLOAT128 EQUAL 0 OR FLT128_DIG EQUAL 0)
SET(H5_HAVE_FLOAT128 0)
SET(SIZEOF___FLOAT128 0)
set(H5_PAC_C_MAX_REAL_PRECISION ${LDBL_DIG})
else ()
set(H5_PAC_C_MAX_REAL_PRECISION ${FLT128_DIG})
endif()
# Setting definition if there is a 16 byte fortran integer
string(FIND ${PAC_FC_ALL_INTEGER_KINDS_SIZEOF} "16" pos)
if(${pos} EQUAL -1)
set(HAVE_Fortran_INTEGER_SIZEOF_16 0)
else ()
set(HAVE_Fortran_INTEGER_SIZEOF_16 1)
endif ()
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