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0
I'm trying to use MinGW gfortran with MATLAB R2019a on Windows 10 by writing a mexopts XML file based on existing XML files. I have cygwin installed with MinGW gcc, and I've been able to run mex -setup referencing the XML file successfully. When I try to compile the timestwo.F file to test the setup (using mex -R2018a timestwo.F90), I get a bunch of errors:
Building with 'cygwin MinGW64 Compiler (Fortran)'.
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
Error using mex
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x47): undefined reference to
`mxisnumeric800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x6a): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x72): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x7d): undefined reference to `mxgetm800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x8c): undefined reference to `mxgetn800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xa6): undefined reference to
`mxcopyptrtoreal8800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xba): undefined reference to
`mxcreatedoublematrix800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xc4): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xe5): undefined reference to
`mxcopyreal8toptr800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x10d): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x13b): undefined reference to
`mexerrmsgidandtxt800_'
collect2: error: ld returned 1 exit status
Here's my source:
! Gateway routine
#include "fintrf.h"
subroutine mexFunction(nlhs, plhs, nrhs, prhs)
implicit none
mwPointer plhs(*), prhs(*)
integer nlhs, nrhs
! Declarations
mwPointer mxGetDoubles
mwPointer mxCreateDoubleMatrix
integer mxIsNumeric
mwPointer mxGetM, mxGetN
mwPointer x_ptr, y_ptr
mwPointer mrows, ncols
mwSize size
! Declare variables for computational routine
real*8 x_input, y_output
! Make sure input is valid
if(nrhs /= 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nInput', &
'One input required.')
elseif(nlhs > 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nOutput', &
'Too many output arguments.')
endif
if(mxIsNumeric(prhs(1)) == 0) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:NonNumeric', &
'Input must be a number.')
endif
! Read input array
x_ptr = mxGetDoubles(prhs(1))
! Get size of array
mrows = mxGetM(prhs(1))
ncols = mxGetN(prhs(1))
size = mrows*ncols
! Create a Fortran array from the input
call mxCopyPtrToReal8(x_ptr,x_input,size)
! Prepare a matrix for output
plhs(1) = mxCreateDoubleMatrix(mrows,ncols,0)
y_ptr = mxGetDoubles(plhs(1))
call timestwo(y_output, x_input)
! copy results to output argument
call mxCopyReal8ToPtr(y_output,y_ptr,size)
return
end
subroutine timestwo(y_output, x_input)
real*8 x_input, y_output
y_output = 2.0*x_input
return
end
The output is the same if I try with the included matlabrootexternexamplesrefbooktimestwo.F fixed-form version.
My options file details (first part of output from mex -v -R2018a timestwo.F90)
Compiler location: C:cygwin64
Options file: C:UsersuserAppDataRoamingMathWorksMATLABR2019amex_FORTRAN_win64.xml
CMDLINE2 : C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
FC : C:cygwin64binx86_64-w64-mingw32-gfortran
DEFINES : -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
FFLAGS : -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer
INCLUDE : -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64"
FOPTIMFLAGS : -O3 -mtune=native
FDEBUGFLAGS : -g -Wall
LDF : C:cygwin64binx86_64-w64-mingw32-gfortran
LDFLAGS : -pthread
LDTYPE : -shared
LINKEXPORT : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
LINKEXPORTVER : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map"
LINKLIBS : -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran
LDOPTIMFLAGS : -O3 -mtune=native
LDDEBUGFLAGS : -g -Wall
OBJEXT : .o
LDEXT : .mexw64
SETENV : set COMPILER=C:cygwin64binx86_64-w64-mingw32-gfortran
set COMPFLAGS=-fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
set OPTIMFLAGS=-O3 -mtune=native
set DEBUGFLAGS=-g -Wall
set LINKER=C:cygwin64binx86_64-w64-mingw32-gfortran
set LINKFLAGS=-pthread
set LINKDEBUGFLAGS=-pthread -shared -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
set LDDEBUGFLAGS=-g -Wall
set NAME_OUTPUT=-o "%OUTDIR%%MEX_NAME%%MEX_EXT%%"
CYGWINROOT : C:cygwin64
MATLABROOT : C:Program FilesMATLABR2019a
ARCH : win64
SRC : "C:cygwin64homeuserMATLABtimestwo.F90";"C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F"
OBJ : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o;C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
OBJS : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
SRCROOT : C:cygwin64homeuserMATLABtimestwo
DEF : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.def
EXP : "timestwo.exp"
LIB : "timestwo.lib"
EXE : timestwo.mexw64
ILK : "timestwo.ilk"
MANIFEST : "timestwo.mexw64.manifest"
TEMPNAME : timestwo
EXEDIR :
EXENAME : timestwo
OPTIM : -O3 -mtune=native
LINKOPTIM : -O3 -mtune=native
CMDLINE1_0 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
CMDLINE1_1 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
It seems like the mex-specific types like mwPointer defined in fintrf.h aren't being defined, even though I've included its location. Why are these types not recognized?
matlab fortran gfortran mex
asked Mar 28 at 20:54
zaenzaen
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I'm trying to use MinGW gfortran with MATLAB R2019a on Windows 10 by writing a mexopts XML file based on existing XML files. I have cygwin installed with MinGW gcc, and I've been able to run mex -setup referencing the XML file successfully. When I try to compile the timestwo.F file to test the setup (using mex -R2018a timestwo.F90), I get a bunch of errors:
Building with 'cygwin MinGW64 Compiler (Fortran)'.
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
Error using mex
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x47): undefined reference to
`mxisnumeric800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x6a): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x72): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x7d): undefined reference to `mxgetm800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x8c): undefined reference to `mxgetn800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xa6): undefined reference to
`mxcopyptrtoreal8800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xba): undefined reference to
`mxcreatedoublematrix800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xc4): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xe5): undefined reference to
`mxcopyreal8toptr800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x10d): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x13b): undefined reference to
`mexerrmsgidandtxt800_'
collect2: error: ld returned 1 exit status
Here's my source:
! Gateway routine
#include "fintrf.h"
subroutine mexFunction(nlhs, plhs, nrhs, prhs)
implicit none
mwPointer plhs(*), prhs(*)
integer nlhs, nrhs
! Declarations
mwPointer mxGetDoubles
mwPointer mxCreateDoubleMatrix
integer mxIsNumeric
mwPointer mxGetM, mxGetN
mwPointer x_ptr, y_ptr
mwPointer mrows, ncols
mwSize size
! Declare variables for computational routine
real*8 x_input, y_output
! Make sure input is valid
if(nrhs /= 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nInput', &
'One input required.')
elseif(nlhs > 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nOutput', &
'Too many output arguments.')
endif
if(mxIsNumeric(prhs(1)) == 0) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:NonNumeric', &
'Input must be a number.')
endif
! Read input array
x_ptr = mxGetDoubles(prhs(1))
! Get size of array
mrows = mxGetM(prhs(1))
ncols = mxGetN(prhs(1))
size = mrows*ncols
! Create a Fortran array from the input
call mxCopyPtrToReal8(x_ptr,x_input,size)
! Prepare a matrix for output
plhs(1) = mxCreateDoubleMatrix(mrows,ncols,0)
y_ptr = mxGetDoubles(plhs(1))
call timestwo(y_output, x_input)
! copy results to output argument
call mxCopyReal8ToPtr(y_output,y_ptr,size)
return
end
subroutine timestwo(y_output, x_input)
real*8 x_input, y_output
y_output = 2.0*x_input
return
end
The output is the same if I try with the included matlabrootexternexamplesrefbooktimestwo.F fixed-form version.
My options file details (first part of output from mex -v -R2018a timestwo.F90)
Compiler location: C:cygwin64
Options file: C:UsersuserAppDataRoamingMathWorksMATLABR2019amex_FORTRAN_win64.xml
CMDLINE2 : C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
FC : C:cygwin64binx86_64-w64-mingw32-gfortran
DEFINES : -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
FFLAGS : -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer
INCLUDE : -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64"
FOPTIMFLAGS : -O3 -mtune=native
FDEBUGFLAGS : -g -Wall
LDF : C:cygwin64binx86_64-w64-mingw32-gfortran
LDFLAGS : -pthread
LDTYPE : -shared
LINKEXPORT : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
LINKEXPORTVER : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map"
LINKLIBS : -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran
LDOPTIMFLAGS : -O3 -mtune=native
LDDEBUGFLAGS : -g -Wall
OBJEXT : .o
LDEXT : .mexw64
SETENV : set COMPILER=C:cygwin64binx86_64-w64-mingw32-gfortran
set COMPFLAGS=-fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
set OPTIMFLAGS=-O3 -mtune=native
set DEBUGFLAGS=-g -Wall
set LINKER=C:cygwin64binx86_64-w64-mingw32-gfortran
set LINKFLAGS=-pthread
set LINKDEBUGFLAGS=-pthread -shared -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
set LDDEBUGFLAGS=-g -Wall
set NAME_OUTPUT=-o "%OUTDIR%%MEX_NAME%%MEX_EXT%%"
CYGWINROOT : C:cygwin64
MATLABROOT : C:Program FilesMATLABR2019a
ARCH : win64
SRC : "C:cygwin64homeuserMATLABtimestwo.F90";"C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F"
OBJ : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o;C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
OBJS : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
SRCROOT : C:cygwin64homeuserMATLABtimestwo
DEF : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.def
EXP : "timestwo.exp"
LIB : "timestwo.lib"
EXE : timestwo.mexw64
ILK : "timestwo.ilk"
MANIFEST : "timestwo.mexw64.manifest"
TEMPNAME : timestwo
EXEDIR :
EXENAME : timestwo
OPTIM : -O3 -mtune=native
LINKOPTIM : -O3 -mtune=native
CMDLINE1_0 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
CMDLINE1_1 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
It seems like the mex-specific types like mwPointer defined in fintrf.h aren't being defined, even though I've included its location. Why are these types not recognized?
matlab fortran gfortran mex
asked Mar 28 at 20:54
zaenzaen
1741 silver badge9 bronze badges
1
Are you sure you should declare the MATLAB functions?mwPointer mxGetDoubles. Aren't those defined in the header file you include? These functions should likely be declared asextern C(or however you do that in Fortran), which would fix your capitalization issue.
– Cris Luengo
Apr 3 at 16:46
This is how MathWorks specifies the Fortran test file, so that was how I wrote my copy. mxGetDoubles is defined in the header file, but if I remove the declaration, I getError: Function ‘mxgetdoubles800’ at (1) has no IMPLICIT type
– zaen
Apr 3 at 16:51
I see. Fortran is a weird language... :) -- Did you try compiling one of the demos that come with MATLAB?mex([matlabroot '/extern/examples/refbook/timestwo.F']).
– Cris Luengo
Apr 3 at 17:03
Yes, those fail as well. They succeed on Linux, and I think I've found the reason. The Linux libraries export symbols in a gfortran-compatible way, e.g. mxisnumeric800_. The underscore can be removed with -fno-underscoring, but the gfortran developers didn't include the -fsymbol-case-upper option from g77. That, I'm pretty sure, is the problem; gfortran forces symbols to be lowercase, while the Intel compiler goes for uppercase.
– zaen
Apr 3 at 17:10
Ah, that must be it. MATLAB supports the Intel Fortran compiler only on Windows.
– Cris Luengo
Apr 3 at 17:15
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I'm trying to use MinGW gfortran with MATLAB R2019a on Windows 10 by writing a mexopts XML file based on existing XML files. I have cygwin installed with MinGW gcc, and I've been able to run mex -setup referencing the XML file successfully. When I try to compile the timestwo.F file to test the setup (using mex -R2018a timestwo.F90), I get a bunch of errors:
Building with 'cygwin MinGW64 Compiler (Fortran)'.
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
Error using mex
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x47): undefined reference to
`mxisnumeric800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x6a): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x72): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x7d): undefined reference to `mxgetm800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x8c): undefined reference to `mxgetn800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xa6): undefined reference to
`mxcopyptrtoreal8800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xba): undefined reference to
`mxcreatedoublematrix800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xc4): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xe5): undefined reference to
`mxcopyreal8toptr800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x10d): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x13b): undefined reference to
`mexerrmsgidandtxt800_'
collect2: error: ld returned 1 exit status
Here's my source:
! Gateway routine
#include "fintrf.h"
subroutine mexFunction(nlhs, plhs, nrhs, prhs)
implicit none
mwPointer plhs(*), prhs(*)
integer nlhs, nrhs
! Declarations
mwPointer mxGetDoubles
mwPointer mxCreateDoubleMatrix
integer mxIsNumeric
mwPointer mxGetM, mxGetN
mwPointer x_ptr, y_ptr
mwPointer mrows, ncols
mwSize size
! Declare variables for computational routine
real*8 x_input, y_output
! Make sure input is valid
if(nrhs /= 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nInput', &
'One input required.')
elseif(nlhs > 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nOutput', &
'Too many output arguments.')
endif
if(mxIsNumeric(prhs(1)) == 0) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:NonNumeric', &
'Input must be a number.')
endif
! Read input array
x_ptr = mxGetDoubles(prhs(1))
! Get size of array
mrows = mxGetM(prhs(1))
ncols = mxGetN(prhs(1))
size = mrows*ncols
! Create a Fortran array from the input
call mxCopyPtrToReal8(x_ptr,x_input,size)
! Prepare a matrix for output
plhs(1) = mxCreateDoubleMatrix(mrows,ncols,0)
y_ptr = mxGetDoubles(plhs(1))
call timestwo(y_output, x_input)
! copy results to output argument
call mxCopyReal8ToPtr(y_output,y_ptr,size)
return
end
subroutine timestwo(y_output, x_input)
real*8 x_input, y_output
y_output = 2.0*x_input
return
end
The output is the same if I try with the included matlabrootexternexamplesrefbooktimestwo.F fixed-form version.
My options file details (first part of output from mex -v -R2018a timestwo.F90)
Compiler location: C:cygwin64
Options file: C:UsersuserAppDataRoamingMathWorksMATLABR2019amex_FORTRAN_win64.xml
CMDLINE2 : C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
FC : C:cygwin64binx86_64-w64-mingw32-gfortran
DEFINES : -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
FFLAGS : -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer
INCLUDE : -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64"
FOPTIMFLAGS : -O3 -mtune=native
FDEBUGFLAGS : -g -Wall
LDF : C:cygwin64binx86_64-w64-mingw32-gfortran
LDFLAGS : -pthread
LDTYPE : -shared
LINKEXPORT : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
LINKEXPORTVER : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map"
LINKLIBS : -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran
LDOPTIMFLAGS : -O3 -mtune=native
LDDEBUGFLAGS : -g -Wall
OBJEXT : .o
LDEXT : .mexw64
SETENV : set COMPILER=C:cygwin64binx86_64-w64-mingw32-gfortran
set COMPFLAGS=-fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
set OPTIMFLAGS=-O3 -mtune=native
set DEBUGFLAGS=-g -Wall
set LINKER=C:cygwin64binx86_64-w64-mingw32-gfortran
set LINKFLAGS=-pthread
set LINKDEBUGFLAGS=-pthread -shared -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
set LDDEBUGFLAGS=-g -Wall
set NAME_OUTPUT=-o "%OUTDIR%%MEX_NAME%%MEX_EXT%%"
CYGWINROOT : C:cygwin64
MATLABROOT : C:Program FilesMATLABR2019a
ARCH : win64
SRC : "C:cygwin64homeuserMATLABtimestwo.F90";"C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F"
OBJ : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o;C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
OBJS : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
SRCROOT : C:cygwin64homeuserMATLABtimestwo
DEF : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.def
EXP : "timestwo.exp"
LIB : "timestwo.lib"
EXE : timestwo.mexw64
ILK : "timestwo.ilk"
MANIFEST : "timestwo.mexw64.manifest"
TEMPNAME : timestwo
EXEDIR :
EXENAME : timestwo
OPTIM : -O3 -mtune=native
LINKOPTIM : -O3 -mtune=native
CMDLINE1_0 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
CMDLINE1_1 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
It seems like the mex-specific types like mwPointer defined in fintrf.h aren't being defined, even though I've included its location. Why are these types not recognized?
matlab fortran gfortran mex
asked Mar 28 at 20:54
zaenzaen
1741 silver badge9 bronze badges
I'm trying to use MinGW gfortran with MATLAB R2019a on Windows 10 by writing a mexopts XML file based on existing XML files. I have cygwin installed with MinGW gcc, and I've been able to run mex -setup referencing the XML file successfully. When I try to compile the timestwo.F file to test the setup (using mex -R2018a timestwo.F90), I get a bunch of errors:
Building with 'cygwin MinGW64 Compiler (Fortran)'.
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
f951: Warning: Nonexistent include directory ‘C:Program FilesMATLABR2019asimulinkinclude’ [-Wmissing-include-dirs]
C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
Error using mex
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x47): undefined reference to
`mxisnumeric800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x6a): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x72): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x7d): undefined reference to `mxgetm800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x8c): undefined reference to `mxgetn800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xa6): undefined reference to
`mxcopyptrtoreal8800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xba): undefined reference to
`mxcreatedoublematrix800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xc4): undefined reference to
`mxgetdoubles800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0xe5): undefined reference to
`mxcopyreal8toptr800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x10d): undefined reference to
`mexerrmsgidandtxt800_'
C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o:timestwo.F90:(.text+0x13b): undefined reference to
`mexerrmsgidandtxt800_'
collect2: error: ld returned 1 exit status
Here's my source:
! Gateway routine
#include "fintrf.h"
subroutine mexFunction(nlhs, plhs, nrhs, prhs)
implicit none
mwPointer plhs(*), prhs(*)
integer nlhs, nrhs
! Declarations
mwPointer mxGetDoubles
mwPointer mxCreateDoubleMatrix
integer mxIsNumeric
mwPointer mxGetM, mxGetN
mwPointer x_ptr, y_ptr
mwPointer mrows, ncols
mwSize size
! Declare variables for computational routine
real*8 x_input, y_output
! Make sure input is valid
if(nrhs /= 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nInput', &
'One input required.')
elseif(nlhs > 1) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:nOutput', &
'Too many output arguments.')
endif
if(mxIsNumeric(prhs(1)) == 0) then
call mexErrMsgIdAndTxt ('MATLAB:timestwo:NonNumeric', &
'Input must be a number.')
endif
! Read input array
x_ptr = mxGetDoubles(prhs(1))
! Get size of array
mrows = mxGetM(prhs(1))
ncols = mxGetN(prhs(1))
size = mrows*ncols
! Create a Fortran array from the input
call mxCopyPtrToReal8(x_ptr,x_input,size)
! Prepare a matrix for output
plhs(1) = mxCreateDoubleMatrix(mrows,ncols,0)
y_ptr = mxGetDoubles(plhs(1))
call timestwo(y_output, x_input)
! copy results to output argument
call mxCopyReal8ToPtr(y_output,y_ptr,size)
return
end
subroutine timestwo(y_output, x_input)
real*8 x_input, y_output
y_output = 2.0*x_input
return
end
The output is the same if I try with the included matlabrootexternexamplesrefbooktimestwo.F fixed-form version.
My options file details (first part of output from mex -v -R2018a timestwo.F90)
Compiler location: C:cygwin64
Options file: C:UsersuserAppDataRoamingMathWorksMATLABR2019amex_FORTRAN_win64.xml
CMDLINE2 : C:cygwin64binx86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map" C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -o timestwo.mexw64
FC : C:cygwin64binx86_64-w64-mingw32-gfortran
DEFINES : -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
FFLAGS : -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer
INCLUDE : -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64"
FOPTIMFLAGS : -O3 -mtune=native
FDEBUGFLAGS : -g -Wall
LDF : C:cygwin64binx86_64-w64-mingw32-gfortran
LDFLAGS : -pthread
LDTYPE : -shared
LINKEXPORT : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
LINKEXPORTVER : -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fortran_exportsmexfileversion.map"
LINKLIBS : -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran
LDOPTIMFLAGS : -O3 -mtune=native
LDDEBUGFLAGS : -g -Wall
OBJEXT : .o
LDEXT : .mexw64
SETENV : set COMPILER=C:cygwin64binx86_64-w64-mingw32-gfortran
set COMPFLAGS=-fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD
set OPTIMFLAGS=-O3 -mtune=native
set DEBUGFLAGS=-g -Wall
set LINKER=C:cygwin64binx86_64-w64-mingw32-gfortran
set LINKFLAGS=-pthread
set LINKDEBUGFLAGS=-pthread -shared -Wl,-L"C:Program FilesMATLABR2019aexternlibwin64mingw64" -llibmx -llibmex -llibmat -lm -L"C:cygwin64libgccx86_64-w64-mingw327.4.0" -lgfortran -Wl,--version-script,"C:Program FilesMATLABR2019aexternlibwin64mingw64fexport.map"
set LDDEBUGFLAGS=-g -Wall
set NAME_OUTPUT=-o "%OUTDIR%%MEX_NAME%%MEX_EXT%%"
CYGWINROOT : C:cygwin64
MATLABROOT : C:Program FilesMATLABR2019a
ARCH : win64
SRC : "C:cygwin64homeuserMATLABtimestwo.F90";"C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F"
OBJ : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o;C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
OBJS : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
SRCROOT : C:cygwin64homeuserMATLABtimestwo
DEF : C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.def
EXP : "timestwo.exp"
LIB : "timestwo.lib"
EXE : timestwo.mexw64
ILK : "timestwo.ilk"
MANIFEST : "timestwo.mexw64.manifest"
TEMPNAME : timestwo
EXEDIR :
EXENAME : timestwo
OPTIM : -O3 -mtune=native
LINKOPTIM : -O3 -mtune=native
CMDLINE1_0 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:cygwin64homeuserMATLABtimestwo.F90" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248timestwo.o
CMDLINE1_1 : C:cygwin64binx86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:Program FilesMATLABR2019aexterninclude" -I"C:Program FilesMATLABR2019asimulinkinclude" -I"C:Program FilesMATLABR2019aexternlibwin64mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:Program FilesMATLABR2019aexternversionfortran_mexapi_version.F" -o C:UsersuserAppDataLocalTempmex_62691295256641_4248fortran_mexapi_version.o
It seems like the mex-specific types like mwPointer defined in fintrf.h aren't being defined, even though I've included its location. Why are these types not recognized?
matlab fortran gfortran mex
matlab fortran gfortran mex
asked Mar 28 at 20:54
zaenzaen
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asked Mar 28 at 20:54
zaenzaen
1741 silver badge9 bronze badges
asked Mar 28 at 20:54
zaenzaen
1741 silver badge9 bronze badges
asked Mar 28 at 20:54
zaenzaen
1741 silver badge9 bronze badges
asked Mar 28 at 20:54
zaenzaen
1741 silver badge9 bronze badges
1741 silver badge9 bronze badges
1
Are you sure you should declare the MATLAB functions?mwPointer mxGetDoubles. Aren't those defined in the header file you include? These functions should likely be declared asextern C(or however you do that in Fortran), which would fix your capitalization issue.
– Cris Luengo
Apr 3 at 16:46
This is how MathWorks specifies the Fortran test file, so that was how I wrote my copy. mxGetDoubles is defined in the header file, but if I remove the declaration, I getError: Function ‘mxgetdoubles800’ at (1) has no IMPLICIT type
– zaen
Apr 3 at 16:51
I see. Fortran is a weird language... :) -- Did you try compiling one of the demos that come with MATLAB?mex([matlabroot '/extern/examples/refbook/timestwo.F']).
– Cris Luengo
Apr 3 at 17:03
Yes, those fail as well. They succeed on Linux, and I think I've found the reason. The Linux libraries export symbols in a gfortran-compatible way, e.g. mxisnumeric800_. The underscore can be removed with -fno-underscoring, but the gfortran developers didn't include the -fsymbol-case-upper option from g77. That, I'm pretty sure, is the problem; gfortran forces symbols to be lowercase, while the Intel compiler goes for uppercase.
– zaen
Apr 3 at 17:10
Ah, that must be it. MATLAB supports the Intel Fortran compiler only on Windows.
– Cris Luengo
Apr 3 at 17:15
add a comment
|
1
Are you sure you should declare the MATLAB functions?mwPointer mxGetDoubles. Aren't those defined in the header file you include? These functions should likely be declared asextern C(or however you do that in Fortran), which would fix your capitalization issue.
– Cris Luengo
Apr 3 at 16:46
This is how MathWorks specifies the Fortran test file, so that was how I wrote my copy. mxGetDoubles is defined in the header file, but if I remove the declaration, I getError: Function ‘mxgetdoubles800’ at (1) has no IMPLICIT type
– zaen
Apr 3 at 16:51
I see. Fortran is a weird language... :) -- Did you try compiling one of the demos that come with MATLAB?mex([matlabroot '/extern/examples/refbook/timestwo.F']).
– Cris Luengo
Apr 3 at 17:03
Yes, those fail as well. They succeed on Linux, and I think I've found the reason. The Linux libraries export symbols in a gfortran-compatible way, e.g. mxisnumeric800_. The underscore can be removed with -fno-underscoring, but the gfortran developers didn't include the -fsymbol-case-upper option from g77. That, I'm pretty sure, is the problem; gfortran forces symbols to be lowercase, while the Intel compiler goes for uppercase.
– zaen
Apr 3 at 17:10
Ah, that must be it. MATLAB supports the Intel Fortran compiler only on Windows.
– Cris Luengo
Apr 3 at 17:15
1
1
Are you sure you should declare the MATLAB functions?
mwPointer mxGetDoubles . Aren't those defined in the header file you include? These functions should likely be declared as extern C (or however you do that in Fortran), which would fix your capitalization issue.– Cris Luengo
Apr 3 at 16:46
Are you sure you should declare the MATLAB functions?
mwPointer mxGetDoubles . Aren't those defined in the header file you include? These functions should likely be declared as extern C (or however you do that in Fortran), which would fix your capitalization issue.– Cris Luengo
Apr 3 at 16:46
This is how MathWorks specifies the Fortran test file, so that was how I wrote my copy. mxGetDoubles is defined in the header file, but if I remove the declaration, I get
Error: Function ‘mxgetdoubles800’ at (1) has no IMPLICIT type– zaen
Apr 3 at 16:51
This is how MathWorks specifies the Fortran test file, so that was how I wrote my copy. mxGetDoubles is defined in the header file, but if I remove the declaration, I get
Error: Function ‘mxgetdoubles800’ at (1) has no IMPLICIT type– zaen
Apr 3 at 16:51
I see. Fortran is a weird language... :) -- Did you try compiling one of the demos that come with MATLAB?
mex([matlabroot '/extern/examples/refbook/timestwo.F']).– Cris Luengo
Apr 3 at 17:03
I see. Fortran is a weird language... :) -- Did you try compiling one of the demos that come with MATLAB?
mex([matlabroot '/extern/examples/refbook/timestwo.F']).– Cris Luengo
Apr 3 at 17:03
Yes, those fail as well. They succeed on Linux, and I think I've found the reason. The Linux libraries export symbols in a gfortran-compatible way, e.g. mxisnumeric800_. The underscore can be removed with -fno-underscoring, but the gfortran developers didn't include the -fsymbol-case-upper option from g77. That, I'm pretty sure, is the problem; gfortran forces symbols to be lowercase, while the Intel compiler goes for uppercase.
– zaen
Apr 3 at 17:10
Yes, those fail as well. They succeed on Linux, and I think I've found the reason. The Linux libraries export symbols in a gfortran-compatible way, e.g. mxisnumeric800_. The underscore can be removed with -fno-underscoring, but the gfortran developers didn't include the -fsymbol-case-upper option from g77. That, I'm pretty sure, is the problem; gfortran forces symbols to be lowercase, while the Intel compiler goes for uppercase.
– zaen
Apr 3 at 17:10
Ah, that must be it. MATLAB supports the Intel Fortran compiler only on Windows.
– Cris Luengo
Apr 3 at 17:15
Ah, that must be it. MATLAB supports the Intel Fortran compiler only on Windows.
– Cris Luengo
Apr 3 at 17:15
add a comment
|
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1
Are you sure you should declare the MATLAB functions?
mwPointer mxGetDoubles. Aren't those defined in the header file you include? These functions should likely be declared asextern C(or however you do that in Fortran), which would fix your capitalization issue.– Cris Luengo
Apr 3 at 16:46
This is how MathWorks specifies the Fortran test file, so that was how I wrote my copy. mxGetDoubles is defined in the header file, but if I remove the declaration, I get
Error: Function ‘mxgetdoubles800’ at (1) has no IMPLICIT type– zaen
Apr 3 at 16:51
I see. Fortran is a weird language... :) -- Did you try compiling one of the demos that come with MATLAB?
mex([matlabroot '/extern/examples/refbook/timestwo.F']).– Cris Luengo
Apr 3 at 17:03
Yes, those fail as well. They succeed on Linux, and I think I've found the reason. The Linux libraries export symbols in a gfortran-compatible way, e.g. mxisnumeric800_. The underscore can be removed with -fno-underscoring, but the gfortran developers didn't include the -fsymbol-case-upper option from g77. That, I'm pretty sure, is the problem; gfortran forces symbols to be lowercase, while the Intel compiler goes for uppercase.
– zaen
Apr 3 at 17:10
Ah, that must be it. MATLAB supports the Intel Fortran compiler only on Windows.
– Cris Luengo
Apr 3 at 17:15