Also you're going to be better off using the MinGW-w64 cross-compilers, rather than the Cygwin's own gfortran. Try installing mingw64-x86_64-gcc-fortran through Cygwin's setup for 64 bit, or mingw64-i686-gcc-fortran for 32 bit. Then instead of calling gfortran to compile your Fortran code, call x86_64-w64-mingw32-gfortran (or i686-w64-mingw32-gfortran for 32 bit). Everything else should work more or less the same.
On Tuesday, December 16, 2014 6:04:43 PM UTC-8, Vathy M. Kamulete wrote: > I posted this on StackOverflow. It was recommended I post here. See here > <http://stackoverflow.com/q/27498755/1965432>for background. > > Where can I find good examples of integrating (modern) Fortran code with > Julia? > > I am using the GNU gfortran compiler (on Cygwin) for my own module. A good > example will hopefully start from the compilation stage, address mangled > names and call the subroutine from Julia via ccall. Most examples I've seen > skip the first two stages. On the SO post, I refer to Modern Fortran > explicitly because what I've seen so far tends to be for legacy code -- > think punchcard-style fixed-width formatting Fortran (that goes for GLMNet, > which was allegedly written in 2008 but adheres to those conventions). > > So imagine that I have the following module in Fortran90 file named > 'f90tojl.f90': > > module m > contains > integer function five() > five = 5 > end function five > end module m > > This example is from here > <http://en.wikipedia.org/wiki/Name_mangling#Name_mangling_in_Fortran>. I > compile it with gfortan as follows to create a shared library: > > gfortran -shared -O2 f90tojl.f90 -o -fPIC f90tojl.so > > And my, admittedly shaky, understanding from reading the julia docs > suggest that I should be able to call the function five like so: > > ccall( (:__m_MOD_five, "f90tojl"), Int, () ) > > It didn't work for me. I get ''error compiling anonymous: could not load > module f90tojl... ". Anyone cares to enlighten me? I got the sneaky sense > I'm doing something silly.... > > Thanks in advance, > > V. >
