[petsc-dev] Help with configure and cmake

[Jose E. Roman]

El 11/03/2011, a las 16:41, Jed Brown escribió:

> On Fri, Mar 11, 2011 at 13:02, Jose E. Roman <jroman at dsic.upv.es> wrote:
> I have been adding support for cmake in SLEPc. My simple approach is:
> 1) generate a SLEPcConfig.cmake file
> 2) generate CMakeLists.txt with a cmakegen module adapted from petsc-dev
> 3) run cmake with a cmakeboot module adapted from petsc-dev
> 
> Step 3 loads RDict and uses 'script' to process all PETSc configuration. The problem comes with prefix-based installations of PETSc, since 'script' is not available.
> 
> Seems to me that necessary script support should be installed with prefix installs too. I do not understand why "script" is such a cumbersome beast to actually use, but it could be installed. However, exposing it to users turns much of BuildSystem into a public API. This does not seem like a good idea, especially with Barry's recent "cll" proposal for a much simpler alternative to parts of BuildSystem.
> 
> As a long-term solution, I think we should install a pkgconfig file and/or a "petsc-config" script that knows about compilers, how to link shared versus static, etc.
>  
> Can anyone suggest a solution for this? Maybe use Jed's FindPETSc.cmake module?
> 
> If you decide to use it, let me know if you find any problems. Writing significant logic in cmake-script is no fun.


For now, I have disabled CMake builds in slepc-dev whenever using a prefix-based PETsc.

Jose