diff options
| author |  Christoph Hertzberg <chtz@informatik.uni-bremen.de> | 2014-10-14 14:14:25 +0200 |
|---|---|---|
| committer | Christoph Hertzberg <chtz@informatik.uni-bremen.de> | 2014-10-14 14:14:25 +0200 |
| commit | 0ec1fc9e114a2fb8fd0cbeee38669547f46804c8 (patch) | |
| tree | d63bc70c3d4743cc8868f70f591d2da0645c9b76 /cmake | |
| parent | d3f52debc6c45d1f26bb9406207ebc5a8638a429 (diff) | |
bug #891: Determine sizeof(void*) via CMAKE variable instead of test program
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/EigenTesting.cmake | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/cmake/EigenTesting.cmake b/cmake/EigenTesting.cmake index 65bb29413..3ed002a87 100644 --- a/cmake/EigenTesting.cmake +++ b/cmake/EigenTesting.cmake @@ -489,20 +489,12 @@ macro(ei_set_build_string) endmacro(ei_set_build_string) macro(ei_is_64bit_env VAR) - - file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/is64.cpp" - "int main() { return (sizeof(int*) == 8 ? 1 : 0); } - ") - try_run(run_res compile_res - ${CMAKE_CURRENT_BINARY_DIR} "${CMAKE_CURRENT_BINARY_DIR}/is64.cpp" - RUN_OUTPUT_VARIABLE run_output) - - if(compile_res AND run_res) - set(${VAR} ${run_res}) - elseif(CMAKE_CL_64) - set(${VAR} 1) - elseif("$ENV{Platform}" STREQUAL "X64") # nmake 64 bit + if(CMAKE_SIZEOF_VOID_P EQUAL 8) set(${VAR} 1) + elseif(CMAKE_SIZEOF_VOID_P EQUAL 4) + set(${VAR} 0) + else() + message(WARNING "Unsupported pointer size. Please contact the authors.") endif() endmacro(ei_is_64bit_env) |