问题
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:\cygwin64\bin\x86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:\Program Files\MATLAB\R2019a\extern\include" -I"C:\Program Files\MATLAB\R2019a\simulink\include" -I"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:\cygwin64\home\user\MATLAB\timestwo.F90" -o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o
f951: Warning: Nonexistent include directory ‘C:\Program Files\MATLAB\R2019a\simulink\include’ [-Wmissing-include-dirs]
C:\cygwin64\bin\x86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:\Program Files\MATLAB\R2019a\extern\include" -I"C:\Program Files\MATLAB\R2019a\simulink\include" -I"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:\Program Files\MATLAB\R2019a\extern\version\fortran_mexapi_version.F" -o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\fortran_mexapi_version.o
f951: Warning: Nonexistent include directory ‘C:\Program Files\MATLAB\R2019a\simulink\include’ [-Wmissing-include-dirs]
C:\cygwin64\bin\x86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64\fortran_exportsmexfileversion.map" C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\fortran_mexapi_version.o -Wl,-L"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -L"C:\cygwin64\lib\gcc\x86_64-w64-mingw32\7.4.0" -lgfortran -o timestwo.mexw64
Error using mex
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0x47): undefined reference to
`mxisnumeric800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0x6a): undefined reference to
`mexerrmsgidandtxt800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0x72): undefined reference to
`mxgetdoubles800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0x7d): undefined reference to `mxgetm800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0x8c): undefined reference to `mxgetn800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0xa6): undefined reference to
`mxcopyptrtoreal8800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0xba): undefined reference to
`mxcreatedoublematrix800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0xc4): undefined reference to
`mxgetdoubles800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0xe5): undefined reference to
`mxcopyreal8toptr800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o:timestwo.F90:(.text+0x10d): undefined reference to
`mexerrmsgidandtxt800_'
C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.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 matlabroot\extern\examples\refbook\timestwo.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:\Users\user\AppData\Roaming\MathWorks\MATLAB\R2019a\mex_FORTRAN_win64.xml
CMDLINE2 : C:\cygwin64\bin\x86_64-w64-mingw32-gfortran -pthread -shared -O3 -mtune=native -Wl,--version-script,"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64\fortran_exportsmexfileversion.map" C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\fortran_mexapi_version.o -Wl,-L"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -L"C:\cygwin64\lib\gcc\x86_64-w64-mingw32\7.4.0" -lgfortran -o timestwo.mexw64
FC : C:\cygwin64\bin\x86_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 Files\MATLAB\R2019a\extern\include" -I"C:\Program Files\MATLAB\R2019a\simulink\include" -I"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64"
FOPTIMFLAGS : -O3 -mtune=native
FDEBUGFLAGS : -g -Wall
LDF : C:\cygwin64\bin\x86_64-w64-mingw32-gfortran
LDFLAGS : -pthread
LDTYPE : -shared
LINKEXPORT : -Wl,--version-script,"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64\fexport.map"
LINKEXPORTVER : -Wl,--version-script,"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64\fortran_exportsmexfileversion.map"
LINKLIBS : -Wl,-L"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -L"C:\cygwin64\lib\gcc\x86_64-w64-mingw32\7.4.0" -lgfortran
LDOPTIMFLAGS : -O3 -mtune=native
LDDEBUGFLAGS : -g -Wall
OBJEXT : .o
LDEXT : .mexw64
SETENV : set COMPILER=C:\cygwin64\bin\x86_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:\cygwin64\bin\x86_64-w64-mingw32-gfortran
set LINKFLAGS=-pthread
set LINKDEBUGFLAGS=-pthread -shared -Wl,-L"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -llibmx -llibmex -llibmat -lm -L"C:\cygwin64\lib\gcc\x86_64-w64-mingw32\7.4.0" -lgfortran -Wl,--version-script,"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64\fexport.map"
set LDDEBUGFLAGS=-g -Wall
set NAME_OUTPUT=-o "%OUTDIR%%MEX_NAME%%MEX_EXT%%"
CYGWINROOT : C:\cygwin64
MATLABROOT : C:\Program Files\MATLAB\R2019a
ARCH : win64
SRC : "C:\cygwin64\home\user\MATLAB\timestwo.F90";"C:\Program Files\MATLAB\R2019a\extern\version\fortran_mexapi_version.F"
OBJ : C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o;C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\fortran_mexapi_version.o
OBJS : C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\fortran_mexapi_version.o
SRCROOT : C:\cygwin64\home\user\MATLAB\timestwo
DEF : C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.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:\cygwin64\bin\x86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:\Program Files\MATLAB\R2019a\extern\include" -I"C:\Program Files\MATLAB\R2019a\simulink\include" -I"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:\cygwin64\home\user\MATLAB\timestwo.F90" -o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\timestwo.o
CMDLINE1_1 : C:\cygwin64\bin\x86_64-w64-mingw32-gfortran -c -DMX_COMPAT_64 -DMATLAB_MEXCMD_RELEASE=R2018a -DUSE_MEX_CMD -I"C:\Program Files\MATLAB\R2019a\extern\include" -I"C:\Program Files\MATLAB\R2019a\simulink\include" -I"C:\Program Files\MATLAB\R2019a\extern\lib\win64\mingw64" -fexceptions -fbackslash -fPIC -fno-omit-frame-pointer -O3 -mtune=native "C:\Program Files\MATLAB\R2019a\extern\version\fortran_mexapi_version.F" -o C:\Users\user\AppData\Local\Temp\mex_62691295256641_4248\fortran_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?
来源：https://stackoverflow.com/questions/55406709/matlab-gives-undefined-reference-errors-trying-to-use-gfortran-on-windows