X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/30769c28f7021367f7d7f54e868dde6c2c17c050..3185c15eba4fec1baf673a9933f190efbeba0e93:/FindSimGrid.cmake diff --git a/FindSimGrid.cmake b/FindSimGrid.cmake index 9a1cf4f627..dd035e23f5 100644 --- a/FindSimGrid.cmake +++ b/FindSimGrid.cmake @@ -1,86 +1,118 @@ -#IF YOU HAVE INSTALL SIMGRID IN A SPECIAL DIRECTORY -#YOU CAN SPECIFY SIMGRID_ROOT OR GRAS_ROOT +# CMake find module to search for the SimGrid library. -# TO CALL THIS FILE USE - #set(CMAKE_MODULE_PATH - #${CMAKE_MODULE_PATH} - #${CMAKE_HOME_DIRECTORY}/buildtools/Cmake/Modules - #) +# Copyright (c) 2016-2018. The SimGrid Team. +# +# This file is free software; you can redistribute it and/or modify it +# under the terms of the license (GNU LGPL) which comes with this package. -find_library(HAVE_SIMGRID_LIB - NAME simgrid - HINTS - $ENV{LD_LIBRARY_PATH} - $ENV{GRAS_ROOT} - $ENV{SIMGRID_ROOT} - PATH_SUFFIXES lib64 lib - PATHS - /opt - /opt/local - /opt/csw - /sw - /usr -) +# +# USERS OF PROGRAMS USING SIMGRID +# ------------------------------- +# +# If cmake does not find this file, add its path to CMAKE_PREFIX_PATH: +# CMAKE_PREFIX_PATH="/path/to/FindSimGrid.cmake:$CMAKE_PREFIX_PATH" cmake . +# +# If this file does not find SimGrid, define SimGrid_PATH: +# SimGrid_PATH=/path/to/simgrid cmake . -find_path(HAVE_GRAS_H gras.h - HINTS - $ENV{GRAS_ROOT} - $ENV{SIMGRID_ROOT} - PATH_SUFFIXES include - PATHS - /opt - /opt/local - /opt/csw - /sw - /usr -) +# +# DEVELOPERS OF PROGRAMS USING SIMGRID +# ------------------------------------ +# +# 1. Include this file in your own CMakeLists.txt +# Either by copying it in your tree, or (recommended) by using the +# version automatically installed by SimGrid. +# +# 2. Afterward, if you have CMake >= 2.8.12, this will define a +# target called 'SimGrid::Simgrid'. Use it as: +# target_link_libraries(your-simulator SimGrid::SimGrid) +# +# With older CMake (< 2.8.12), it simply defines several variables: +# SimGrid_INCLUDE_DIR - the SimGrid include directories +# SimGrid_LIBRARY - link your simulator against it to use SimGrid +# Use as: +# include_directories("${SimGrid_INCLUDE_DIR}" SYSTEM) +# target_link_libraries(your-simulator ${SimGrid_LIBRARY}) +# +# In both cases, it also define a SimGrid_VERSION macro, that you +# can use to deal with API evolutions as follows: +# +# #if SimGrid_VERSION < 31800 +# (code to use if the installed version is lower than v3.18) +# #elif SimGrid_VERSION < 31900 +# (code to use if we are using SimGrid v3.18.x) +# #else +# (code to use with SimGrid v3.19+) +# #endif -find_program(HAVE_TESH - NAMES tesh - HINTS - $ENV{GRAS_ROOT} - $ENV{SIMGRID_ROOT} - PATH_SUFFIXES bin - PATHS - /opt - /opt/local - /opt/csw - /sw - /usr -) +# +# IMPROVING THIS FILE +# ------------------- +# - Use automatic SimGridConfig.cmake creation via export/install(EXPORT in main CMakeLists.txt: +# https://cliutils.gitlab.io/modern-cmake/chapters/exporting.html +# https://cmake.org/Wiki/CMake/Tutorials/How_to_create_a_ProjectConfig.cmake_file +# https://github.com/boostcon/cppnow_presentations_2017/blob/master/05-19-2017_friday/effective_cmake__daniel_pfeifer__cppnow_05-19-2017.pdf + +cmake_minimum_required(VERSION 2.8) -find_program(HAVE_GRAS_STUB - NAMES gras_stub_generator - HINTS - $ENV{GRAS_ROOT} - $ENV{SIMGRID_ROOT} - PATH_SUFFIXES bin - PATHS - /opt - /opt/local - /opt/csw - /sw - /usr +find_path(SimGrid_INCLUDE_DIR + NAMES simgrid_config.h + PATHS ${SimGrid_PATH}/include /opt/simgrid/include ) +find_library(SimGrid_LIBRARY + NAMES simgrid + PATHS ${SimGrid_PATH}/lib /opt/simgrid/lib +) +mark_as_advanced(SimGrid_INCLUDE_DIR) +mark_as_advanced(SimGrid_LIBRARY) + +if (SimGrid_INCLUDE_DIR) + set(SimGrid_VERSION_REGEX "^#define SIMGRID_VERSION_(MAJOR|MINOR|PATCH) ([0-9]+)$") + file(STRINGS "${SimGrid_INCLUDE_DIR}/simgrid_config.h" SimGrid_VERSION_STRING REGEX ${SimGrid_VERSION_REGEX}) + set(SimGrid_VERSION "") -message(STATUS "Looking for lib SimGrid") -if(HAVE_SIMGRID_LIB) -message(STATUS "Looking for lib SimGrid - found") -else(HAVE_SIMGRID_LIB) -message(STATUS "Looking for lib SimGrid - not found") -endif(HAVE_SIMGRID_LIB) + # Concat the matches to MAJOR.MINOR.PATCH assuming they appear in this order + foreach(match ${SimGrid_VERSION_STRING}) + if(SimGrid_VERSION) + set(SimGrid_VERSION "${SimGrid_VERSION}.") + endif() + string(REGEX REPLACE ${SimGrid_VERSION_REGEX} "${SimGrid_VERSION}\\2" SimGrid_VERSION ${match}) + set(SimGrid_VERSION_${CMAKE_MATCH_1} ${CMAKE_MATCH_2}) + endforeach() + unset(SimGrid_VERSION_STRING) + unset(SimGrid_VERSION_REGEX) +endif () -message(STATUS "Looking for gras.h") -if(HAVE_GRAS_H) -message(STATUS "Looking for gras.h - found") -else(HAVE_GRAS_H) -message(STATUS "Looking for gras.h - not found") -endif(HAVE_GRAS_H) +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(SimGrid + FOUND_VAR SimGrid_FOUND + REQUIRED_VARS SimGrid_INCLUDE_DIR SimGrid_LIBRARY + VERSION_VAR SimGrid_VERSION +) -if(HAVE_TESH) -message(STATUS "Found Tesh: ${HAVE_TESH}") -endif(HAVE_TESH) +if (SimGrid_FOUND AND NOT CMAKE_VERSION VERSION_LESS 2.8.12) + add_library(SimGrid::SimGrid SHARED IMPORTED) + set_target_properties(SimGrid::SimGrid PROPERTIES + INTERFACE_SYSTEM_INCLUDE_DIRECTORIES ${SimGrid_INCLUDE_DIR} + INTERFACE_COMPILE_FEATURES cxx_alias_templates + IMPORTED_LOCATION ${SimGrid_LIBRARY} + ) + # We need C++11, so check for it just in case the user removed it since compiling SimGrid + if (NOT CMAKE_VERSION VERSION_LESS 3.8) + # 3.8+ allows us to simply require C++11 (or higher) + set_property(TARGET SimGrid::SimGrid PROPERTY INTERFACE_COMPILE_FEATURES cxx_std_11) + elseif (NOT CMAKE_VERSION VERSION_LESS 3.1) + # 3.1+ is similar but for certain features. We pick just one + set_property(TARGET SimGrid::SimGrid PROPERTY INTERFACE_COMPILE_FEATURES cxx_alias_templates) + else () + # Old CMake can't do much. Just check the CXX_FLAGS and inform the user when a C++11 feature does not work + include(CheckCXXSourceCompiles) + set(CMAKE_REQUIRED_FLAGS "${CMAKE_CXX_FLAGS}") + check_cxx_source_compiles("using Foo = int; int main(){}" _SIMGRID_CXX11_ENABLED) + if (NOT _SIMGRID_CXX11_ENABLED) + message(WARNING "C++11 is required to use SimGrid. Enable it with e.g. -std=c++11") + endif () + unset(_SIMGRID_CXX11_ENABLED CACHE) + endif () +endif () -if(HAVE_GRAS_STUB) -message(STATUS "Found gras_stub_generator: ${HAVE_GRAS_STUB}") -endif(HAVE_GRAS_STUB) \ No newline at end of file