[petsc-users] Petsc-3.4.2 with MinGW-w64 on Windows 7

[Satish Balay]

Looks like this mingw install is not from cygwin - and does not work with cygwin paths.

Suggest using mingw from cygwin - or install and use cygwin64 [which has non-mingw gcc-64]
You might need the following patch
https://bitbucket.org/petsc/petsc/commits/e4773d96ef73f1e0b315c5b0194cae499d71e207

Satish


On Tue, 1 Oct 2013, Mengda Wu wrote:

> Hello all,
> 
>    I am trying to compile 64 bit version of petsc-3.4.2 using MinGW-w64
> (latest version 4.8.1 installed with
> http://sourceforge.net/projects/mingwbuilds/files/mingw-builds-install/mingw-builds-install.exe/download)
> on Windows 7 64 bit. I have cygwin, python (under cygwin) installed.
> 
>   I run the "$ ./config/configure.py --with-cc='gcc' --with-fc='gfortran'
> --with-cxx='g++'
> --with-clanguage=cxx  --with-mpi=0 --with-debugging=0  --with-sowing=0
> --with-c
> 2html=0". I got some errors in checkCCompiler. The log file is as follows:
> ============================================================
> TEST checkCCompiler from
> config.setCompilers(/cygdrive/c/Library/PETSc/download/petsc-3.4.2/config/BuildSystem/config/setCompilers.py:525)
> TESTING: checkCCompiler from
> config.setCompilers(config/BuildSystem/config/setCompilers.py:525)
>   Locate a functional C compiler
> Checking for program /home/glxiong/bin/gcc...not found
> Checking for program /usr/local/bin/gcc...not found
> Checking for program /usr/bin/gcc...not found
> Checking for program
> /cygdrive/c/Library/MinGW/x64-4.8.1/mingw64/bin/gcc...found
>           Defined make macro "CC" to "gcc"
>           Pushing language C
>                     All intermediate test results are stored in
> /tmp/petsc-novY5r/config.setCompilers
> sh: gcc -c -o /tmp/petsc-novY5r/config.setCompilers/conftest.o
> -I/tmp/petsc-novY5r/config.setCompilers
> /tmp/petsc-novY5r/config.setCompilers/conftest.c
> Executing: gcc -c -o /tmp/petsc-novY5r/config.setCompilers/conftest.o
> -I/tmp/petsc-novY5r/config.setCompilers
> /tmp/petsc-novY5r/config.setCompilers/conftest.c
> sh:
> Possible ERROR while running compiler: ret = 256
> error message = {gcc.exe: error:
> /tmp/petsc-novY5r/config.setCompilers/conftest.c: No such file or directory
> 
> gcc.exe: fatal error: no input files
> 
> compilation terminated.
> ============================================================
> 
> I think the problem is the MinGW-w64 compiler does not recognize the cygwin
> path like /tmp. Is there a workaround? I tried to use a native Windows
> python, but the configure fails to find the "make" command then. I guess
> MinGW may be not supported by PetSc yet.
> 
> However, I found someone has successfully compiled a MPI-version Petsc on
> Windows 64 bit. Here is the link:
> http://geuz.org/pipermail/gmsh/2012/007589.html.
> How is that possible?
> 
> 
> Thanks,
> Mengda
>