Invalid escape sequence \. in kokkos_functions.cmake

[MalachiTimothyPhillips]

kokkos/cmake/kokkos_functions.cmake

Line 50 in d3a9419

string(REGEX MATCH "[0-9]+\.[0-9]+\.[0-9]+$"

All:

I was building Trilinos using an ancient version of Cmake (2.8.12.2) and ran into this particular error:

CMake Error at packages/kokkos/cmake/kokkos_functions.cmake:50 (string):
Syntax error in cmake code at

/packages/Trilinos/packages/kokkos/cmake/kokkos_functions.cmake:50

when parsing string

[0-9]+\.[0-9]+\.[0-9]+$

Invalid escape sequence .

I was able to fix this issue by changing the REGEX to [0-9]+\\.[0-9]+\\.[0-9]+$ . Should this be changed? It may be a change in how REGEX is handled in newer versions of Cmake.

Thanks!

@mhoemmen

[mhoemmen]

FYI it looks like Kokkos requires CMake 3.3 when not building with Trilinos -- does Trilinos test at all with earlier CMake versions?

[crtrott]

Just go ahead issue a pull request to fix that character. Regarding CMake: looks like Trilinos wants to upgrade that soon. But yeah right now it is technically supposed to work with that older version: though we probably don't have any test whats so ever doing that.