undefined reference to `snset_'

[lijunDEC]

Hello ,
Thank you for your code, It is very nice, but I am in trouble for setting up it. And my dll file path is "E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only\solvers\lib\snopt7.dll". It takes me a long time to deal with this issue, but getting nothing. I am looking forward your help.
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only>python setup.py install
Appending optimize.solvers configuration to optimize
Ignoring attempt to set 'name' (from 'optimize' to 'optimize.solvers')
Appending optimize.solvers/snopt configuration to optimize
Ignoring attempt to set 'name' (from 'optimize' to 'optimize.solvers/snopt')
running install
running build
running config_cc
unifing config_cc, config, build_clib, build_ext, build commands --compiler opti
ons
running config_fc
unifing config_fc, config, build_clib, build_ext, build commands --fcompiler opt
ions
running build_src
build_src
building extension "optimize.solvers.snopt7_python" sources
f2py options: []
adding 'build\src.win32-2.7\build\src.win32-2.7\solvers\f2py\fortranobject.c'
to sources.
adding 'build\src.win32-2.7\build\src.win32-2.7\solvers\f2py' to include_dirs.

building data_files sources
build_src: building npy-pkg config files
running build_py
running build_ext
customize Mingw32CCompiler
customize Mingw32CCompiler using build_ext
get_default_fcompiler: matching types: '['gnu', 'intelv', 'absoft', 'compaqv', '
intelev', 'gnu95', 'g95', 'intelvem', 'intelem', 'flang']'
customize GnuFCompiler
Could not locate executable g77
Could not locate executable f77
customize IntelVisualFCompiler
Could not locate executable ifort
Could not locate executable ifl
customize AbsoftFCompiler
Could not locate executable f90
customize CompaqVisualFCompiler
Could not locate executable DF
customize IntelItaniumVisualFCompiler
Could not locate executable efl
customize Gnu95FCompiler
Found executable D:\MinGW\bin\gfortran.exe
customize Gnu95FCompiler
customize Gnu95FCompiler using build_ext
building 'optimize.solvers.snopt7_python' extension
compiling C sources
C compiler: gcc -O2 -Wall -Wstrict-prototypes

compile options: '-DNPY_MINGW_USE_CUSTOM_MSVCR -D__MSVCRT_VERSION__=0x1500 -Ibui
ld\src.win32-2.7\build\src.win32-2.7\solvers\f2py -IC:\Python27\lib\site-package
s\numpy\core\include -IC:\Python27\include -IC:\Python27\PC -c'
gcc -O2 -Wall -Wstrict-prototypes -DNPY_MINGW_USE_CUSTOM_MSVCR -D__MSVCRT_VERSIO
N__=0x1500 -Ibuild\src.win32-2.7\build\src.win32-2.7\solvers\f2py -IC:\Python27
lib\site-packages\numpy\core\include -IC:\Python27\include -IC:\Python27\PC -c b
uild\src.win32-2.7\solvers\f2py\snopt7_pythonmodule.c -o build\temp.win32-2.7\Re
lease\build\src.win32-2.7\solvers\f2py\snopt7_pythonmodule.ogcc -O2 -Wall -Wstri
ct-prototypes -DNPY_MINGW_USE_CUSTOM_MSVCR -D__MSVCRT_VERSION__=0x1500 -Ibuild\s
rc.win32-2.7\build\src.win32-2.7\solvers\f2py -IC:\Python27\lib\site-packages\nu
mpy\core\include -IC:\Python27\include -IC:\Python27\PC -c build\src.win32-2.7\b
uild\src.win32-2.7\solvers\f2py\fortranobject.c -o build\temp.win32-2.7\Release
build\src.win32-2.7\build\src.win32-2.7\solvers\f2py\fortranobject.o

compiling Fortran sources
Fortran f77 compiler: D:\MinGW\bin\gfortran.exe -Wall -g -ffixed-form -fno-secon
d-underscore -O3 -funroll-loops
Fortran f90 compiler: D:\MinGW\bin\gfortran.exe -Wall -g -fno-second-underscore
-O3 -funroll-loops
Fortran fix compiler: D:\MinGW\bin\gfortran.exe -Wall -g -ffixed-form -fno-secon
d-underscore -Wall -g -fno-second-underscore -O3 -funroll-loops
compile options: '-Ibuild\src.win32-2.7\build\src.win32-2.7\solvers\f2py -IC:\Py
thon27\lib\site-packages\numpy\core\include -IC:\Python27\include -IC:\Python27
PC -c'
gfortran.exe:f90: solvers\f2py\snopt7_python.f90
D:\MinGW\bin\gfortran.exe -Wall -g -Wall -g -shared build\temp.win32-2.7\Release
\build\src.win32-2.7\solvers\f2py\snopt7_pythonmodule.o build\temp.win32-2.7\Rel
ease\build\src.win32-2.7\build\src.win32-2.7\solvers\f2py\fortranobject.o build
temp.win32-2.7\Release\solvers\f2py\snopt7_python.o -LE:\download\snopt-python-m
aster\snopt-python-master -Ld:\mingw\lib\gcc\mingw32\6.3.0 -LC:\Python27\libs -L
C:\Python27\PCbuild -LC:\Python27\PC\VS9.0 -lsnopt7 -lpython27 -lgfortran -o bui
ld\lib.win32-2.7\optimize\solvers\snopt7_python.pyd
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function copyopti ons_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:46: undefined reference to snset_'
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function sninit_w rap_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:65: undefined reference to snfileopenappend_'
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:76: undefined reference to sninit_' build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snspec_w
rap_':
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:96: undefined reference to snfileopenread_' E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:97: undefined reference to snspec_'
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:98: undefined reference to snfileclose_' build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snopta_w
rap_':
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:229: undefined reference to snopta_' build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snoptb_w
rap_':
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:286: undefined reference to snoptb_' build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snoptc_w
rap_':
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:338: undefined reference to snoptc_' build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function sqinit_w
rap_':
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:360: undefined reference to snfileopenappend_' E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:371: undefined reference to sqinit_'
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function sqspec_w rap_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:391: undefined reference to snfileopenread_'
E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_
python.f90:392: undefined reference to sqspec_' E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:393: undefined reference to snfileclose_'
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function sqopt_wr ap_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:442: undefined reference to sqopt_'
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snmema_w rap_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:120: undefined reference to snmema_'
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snmem_wr ap_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:140: undefined reference to snmemb_'
build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o: In function snjac_wr ap_': E:\DownLoad\snopt-python-snopt-only\snopt-python-snopt-only/solvers/f2py/snopt7_ python.f90:177: undefined reference to snjac_'
collect2.exe: error: ld returned 1 exit status
error: Command "D:\MinGW\bin\gfortran.exe -Wall -g -Wall -g -shared build\temp.w
in32-2.7\Release\build\src.win32-2.7\solvers\f2py\snopt7_pythonmodule.o build\te
mp.win32-2.7\Release\build\src.win32-2.7\build\src.win32-2.7\solvers\f2py\fortra
nobject.o build\temp.win32-2.7\Release\solvers\f2py\snopt7_python.o -LE:\downloa
d\snopt-python-master\snopt-python-master -Ld:\mingw\lib\gcc\mingw32\6.3.0 -LC:
Python27\libs -LC:\Python27\PCbuild -LC:\Python27\PC\VS9.0 -lsnopt7 -lpython27 -
lgfortran -o build\lib.win32-2.7\optimize\solvers\snopt7_python.pyd" failed with
exit status 1

[gnowzil]

Did you set the location of the SNOPT library? On Linux/MacOS, you have to set the environment variable SNOPT7LIB, e.g., export SNOPT7LIB=$HOME/lib. I think it should be the same in MinGW.

[A-CGray]

Hey, I'm having the same problem, I have my snopt libraries stored in:
C:\Program Files\SNOPT\libsnopt7
The snopt-only branch of this repo under:
Documents\snopt-python
And I have a system environment variable SNOPT7LIB = C:\Program Files\SNOPT\libsnopt7

Am I doing something wrong?