diff options
Diffstat (limited to 'CMakeModules/implementations.cmake')
| -rw-r--r-- | CMakeModules/implementations.cmake | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/CMakeModules/implementations.cmake b/CMakeModules/implementations.cmake new file mode 100644 index 0000000..aa6a8bf --- /dev/null +++ b/CMakeModules/implementations.cmake @@ -0,0 +1,23 @@ +function(DefineImplementations prefix) + + FILE(GLOB children RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}/${prefix} ${CMAKE_CURRENT_SOURCE_DIR}/${prefix}/*) + + set(implementations "") + foreach(child ${children}) + IF(IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${prefix}/${child}) + LIST(APPEND implementations ${child}) + ENDIF() + ENDFOREACH() + + list(LENGTH implementations nr_implementations) + + if(nr_implementations EQUAL 0) + message(FATAL_ERROR "Cannot call DefineImplementations with an empty implementations list.") + endif() + + list(GET implementations 0 default) + set(${prefix}_implementations ${implementations} PARENT_SCOPE) + set(${prefix}_implementation "${default}" CACHE STRING "${prefix} implementation chosen at configure time") + set_property(CACHE ${prefix}_implementation PROPERTY STRINGS ${implementations}) + +endfunction(DefineImplementations) |