[petsc-users] Compiling PETSc on Windows with Cygwin: errors with `win32fe cl`; okay to use `gcc`, `g++`, `gfortran` as compilers instead of `win32cf cl`?

[Brian Merchant]

Hi all,

I'd like to try and install PETSc on Windows (even though I have been
forewarned that it is better to simply install it on a unix system).

Some information about my system:
* Windows 10 Pro, 64 bit
* latest Cygwin with make, gcc, g++, gfortran installed

The PETSc installation instructions suggest that I run the following
command:

    ./configure --with-cc="win32fe cl"  --with-fc="win32fe ifort"
--with-cxx="win32fe\ cl" --download-fblaslapack\

However, that results in the following error:

    C compiler you provided with -with-cc=win32fe cl does not work.
    Cannot compile C with /cygdrive/a/petsc/bin/win32fe/win32fe cl.


The answer to this stackexchange question:
http://stackoverflow.com/questions/30229620/petsc-build-error-c-compiler-does-not-work

recommends the following command instead (with escaped whitespace):

    ./configure --with-cc="win32fe\ cl"  --with-fc="win32fe\ ifort"
--with-cxx="win32fe\ cl" --download-fblaslapack

Running that command results in the following error (note no second line in
error):

    C compiler you provided with -with-cc=win32fe\ cl does not work.

In both cases, the configure.log output only contains (I do not use Chinese
characters, these were in the file):

> 㰡祳汭湩㹫arch-mswin-c-debug/lib/petsc/conf/configure.log

What should I do? Also, do `gcc`/`g++` compiled programs not work on
Windows? I ask because if I simply run the suggested command in the "Quick
Installation" guide, using `gcc` and `g++`; then I don't get compilation
errors. Would it be okay to simply use those compilers then?

Kind regards,
Brian
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