gfortran command to compile the code is as follow : gfortran.exe -o bin\Debug\Petsc_Fortran.exe obj\Debug\main.o C:\Users\....\Downloads\petsc-3.3-p6\arch-mswin-c-debug\lib\libpetsc.a C:\cygwin\lib\libX11.a C:\Users\mehmet\Downloads\libblas.lib C:\Users\.....\Downloads\liblapack.lib C:\Users\....\Downloads\liblapacke.lib C:\cygwin\lib\libcygwin.a Output size is 16.90 MB
One side note is that: After googling for a while it revealed that I should add the libcygwin.a to the linker search paths, after adding this compiler stops the complaints and application compiles but this time raises the segmentation fault. Which I believe is unallocated memory reference at the PetscInitialize. I'm really suprised by that and I don't have any other option to try . Your guidance will be appreciated.