diff options
Diffstat (limited to 'Modules/FindOpenMP.cmake')
| -rw-r--r-- | Modules/FindOpenMP.cmake | 99 |
1 files changed, 67 insertions, 32 deletions
diff --git a/Modules/FindOpenMP.cmake b/Modules/FindOpenMP.cmake index ceac8d2..e1af15e 100644 --- a/Modules/FindOpenMP.cmake +++ b/Modules/FindOpenMP.cmake @@ -1,7 +1,7 @@ # - Finds OpenMP support # This module can be used to detect OpenMP support in a compiler. # If the compiler supports OpenMP, the flags required to compile with -# openmp support are set. +# openmp support are set. # # The following variables are set: # OpenMP_C_FLAGS - flags to add to the C compiler for OpenMP support @@ -13,6 +13,7 @@ #============================================================================= # Copyright 2009 Kitware, Inc. # Copyright 2008-2009 André Rigland Brodtkorb <Andre.Brodtkorb@ifi.uio.no> +# Copyright 2012 Rolf Eike Beer <eike@sf-mail.de> # # Distributed under the OSI-approved BSD License (the "License"); # see accompanying file Copyright.txt for details. @@ -31,27 +32,52 @@ unset(_ENABLED_LANGUAGES) set(_OPENMP_REQUIRED_VARS) -set(OpenMP_C_FLAG_CANDIDATES - #Gnu - "-fopenmp" - #Microsoft Visual Studio - "/openmp" - #Intel windows - "-Qopenmp" - #Intel - "-openmp" - #Empty, if compiler automatically accepts openmp - " " - #Sun - "-xopenmp" - #HP - "+Oopenmp" - #IBM XL C/c++ - "-qsmp" - #Portland Group - "-mp" -) -set(OpenMP_CXX_FLAG_CANDIDATES ${OpenMP_C_FLAG_CANDIDATES}) +function(_OPENMP_FLAG_CANDIDATES LANG) + set(OpenMP_FLAG_CANDIDATES + #GNU + "-fopenmp" + #Microsoft Visual Studio + "/openmp" + #Intel windows + "-Qopenmp" + #PathScale, Intel + "-openmp" + #Empty, if compiler automatically accepts openmp + " " + #Sun + "-xopenmp" + #HP + "+Oopenmp" + #IBM XL C/c++ + "-qsmp" + #Portland Group, MIPSpro + "-mp" + ) + + set(OMP_FLAG_GNU "-fopenmp") + set(OMP_FLAG_HP "+Oopenmp") + if(WIN32) + set(OMP_FLAG_Intel "-Qopenmp") + else() + set(OMP_FLAG_Intel "-openmp") + endif() + set(OMP_FLAG_MIPSpro "-mp") + set(OMP_FLAG_MSVC "/openmp") + set(OMP_FLAG_PathScale "-openmp") + set(OMP_FLAG_PGI "-mp") + set(OMP_FLAG_SunPro "-xopenmp") + set(OMP_FLAG_XL "-qsmp") + + # Move the flag that matches the compiler to the head of the list, + # this is faster and doesn't clutter the output that much. If that + # flag doesn't work we will still try all. + if(OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}) + list(REMOVE_ITEM OpenMP_FLAG_CANDIDATES "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}") + list(INSERT OpenMP_FLAG_CANDIDATES 0 "${OMP_FLAG_${CMAKE_${LANG}_COMPILER_ID}}") + endif() + + set(OpenMP_${LANG}_FLAG_CANDIDATES "${OpenMP_FLAG_CANDIDATES}" PARENT_SCOPE) +endfunction(_OPENMP_FLAG_CANDIDATES) # sample openmp source code to test set(OpenMP_C_TEST_SOURCE @@ -65,16 +91,17 @@ int main() { #endif } ") -# if these are set then do not try to find them again, -# by avoiding any try_compiles for the flags -if(DEFINED OpenMP_C_FLAGS AND DEFINED OpenMP_CXX_FLAGS) - set(OpenMP_C_FLAG_CANDIDATES) - set(OpenMP_CXX_FLAG_CANDIDATES) -endif(DEFINED OpenMP_C_FLAGS AND DEFINED OpenMP_CXX_FLAGS) # check c compiler if(NOT _HAVE_LANGUAGE_C EQUAL -1) - include(CheckCSourceCompiles) + # if these are set then do not try to find them again, + # by avoiding any try_compiles for the flags + if(OpenMP_C_FLAGS) + unset(OpenMP_C_FLAG_CANDIDATES) + else() + _OPENMP_FLAG_CANDIDATES("C") + include(CheckCSourceCompiles) + endif() foreach(FLAG ${OpenMP_C_FLAG_CANDIDATES}) set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") @@ -98,9 +125,17 @@ endif() # check cxx compiler if(NOT _HAVE_LANGUAGE_CXX EQUAL -1) - include(CheckCXXSourceCompiles) - # use the same source for CXX as C for now - set(OpenMP_CXX_TEST_SOURCE ${OpenMP_C_TEST_SOURCE}) + # if these are set then do not try to find them again, + # by avoiding any try_compiles for the flags + if(OpenMP_CXX_FLAGS) + unset(OpenMP_CXX_FLAG_CANDIDATES) + else() + _OPENMP_FLAG_CANDIDATES("CXX") + include(CheckCXXSourceCompiles) + + # use the same source for CXX as C for now + set(OpenMP_CXX_TEST_SOURCE ${OpenMP_C_TEST_SOURCE}) + endif() foreach(FLAG ${OpenMP_CXX_FLAG_CANDIDATES}) set(SAFE_CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}") |