> On Mar 22, 2017, at 2:07 PM, Hom Nath Gharti <hng.em...@gmail.com> wrote:
>
> Dear all,
>
> I use PETSc in my package and I need to use the following line in my
> GNU Makefile:
>
> include ${PETSC_DIR}/lib/petsc/conf/variables
>
> What is the equivalent command for CMakeLists.txt for this?
>
> Thanks for your help.
>
> Thanks,
> HNG
> --
The typical way to use an installed library is via find_package, which requires
either a pkgspec or a find module. It looks like someone has already written a
find module:
https://github.com/jedbrown/cmake-modules/blob/master/FindPETSc.cmake
so, you can do something like:
* fork/or submodule this repo above
* append to CMAKE_MODULE_PATH in your CMakeLists.txt file to add the path to
this module above.
* call find_package(PETSc)
* use the variables that are documented in the finder to set your
include_directories and target_link_libraries.
If you are certain the env variable PETSC_DIR is always going to be set (as
above), then you can simply build paths based on that variable and pass them to
include_directories and target_link_libraries, but the finders also do a better
job of dealing with various build environments, etc.
HTH,
Mike Ellery
--
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