[petsc-users] Trying to compile PETSC in cygwin

[Randall Mackie]

I'm trying to compile a uniprocessor version of my PETSc code on Windows
under cygwin.

I just downloaded and installed cygwin plus gcc, g++, and gfortran, and
lapack.

Whenever I run configure, I get the following error message:

$ ./configure PETSC_ARCH=windows-gfortran-serial --with-fortran
--with-fortran-kernels=1 --with-scalar-type=co
mplex --with-debugging=0 --with-mpi=0 --with-c-language=cxx
===============================================================================
             Configuring PETSc to compile on your
system
===============================================================================
===============================================================================
WARNING! Compiling PETSc with no debugging, this
should                                                              only be
done for timing and production runs. All development
should                                            be done when configured
using --with-debugging=1
===============================================================================
TESTING: configureScalarType from
PETSc.utilities.scalarTypes(config/PETSc/utilities/scalarTypes.py:36)
*******************************************************************************
         UNABLE to CONFIGURE with GIVEN OPTIONS    (see configure.log for
details):
-------------------------------------------------------------------------------
C Compiler provided doest not support C99 complex
*******************************************************************************


I've even tried adding the option --CFLAGS='-std=c99', but I get the same
error message.

Anybody have any suggestions for how to get past this?

Thanks,

Randy M.
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