X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/695464b27af9494e46e22e7af44c2cacfc8fe804..cae6ec1dd7be471ac6eb6c4fbc809a6647687d33:/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 968ab559cd..ca5ab2d733 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 # Build the version number
 
 set(SIMGRID_VERSION_MAJOR "3")
-set(SIMGRID_VERSION_MINOR "30")
+set(SIMGRID_VERSION_MINOR "31")
 set(SIMGRID_VERSION_PATCH "1") # odd => git branch; even => stable release or released snapshot
 
 if(${SIMGRID_VERSION_PATCH} EQUAL "0")
@@ -45,15 +45,15 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
 
 if (CMAKE_COMPILER_IS_GNUCC)
-  if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.0")
+  if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "7.0")
     message(FATAL_ERROR
-            "SimGrid needs at least g++ version 5.0 to compile but you have ${CMAKE_CXX_COMPILER_VERSION}."
-            "You need a sufficient support of c++14 to compile SimGrid.")
+            "SimGrid needs at least g++ version 7.0 to compile but you have ${CMAKE_CXX_COMPILER_VERSION}."
+            "You need a sufficient support of c++17 to compile SimGrid.")
   endif()
 endif()
 
 ## We need a decent support of the C++14 and C11 standards
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 set(CMAKE_C_STANDARD 11)
@@ -227,7 +227,7 @@ set(SIMGRID_HAVE_NS3 0)
 if(enable_ns3)
   include(FindNS3)
   if (SIMGRID_HAVE_NS3)
-    if (NS3_VERSION VERSION_LESS "3.28")
+    if (NOT NS3_VERSION EQUAL "3-dev" AND NS3_VERSION VERSION_LESS "3.28")
       message(FATAL_ERROR "SimGrid needs at least ns-3.28. Please upgrade or disable that cmake option.")
     endif()
     set(SIMGRID_HAVE_NS3 1)
@@ -240,12 +240,19 @@ if(enable_ns3)
 endif()
 
 ### Check for Eigen library
-find_package (Eigen3 3.3 REQUIRED NO_MODULE)
-message(STATUS "Found Eigen3: ${EIGEN3_INCLUDE_DIR}")
-include_directories(${EIGEN3_INCLUDE_DIR})
-if ("3.3.4" EQUAL EIGEN3_VERSION_STRING AND CMAKE_COMPILER_IS_GNUCC)
-  message(STATUS "Avoid build error of Eigen3 v3.3.4 using -Wno-error=int-in-bool-context")
-  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error=int-in-bool-context")
+set(SIMGRID_HAVE_EIGEN3 0)
+find_package (Eigen3 3.3 CONFIG
+              HINTS ${EIGEN3_HINT})
+if (Eigen3_FOUND)
+  set(SIMGRID_HAVE_EIGEN3 1)
+  message(STATUS "Found Eigen3: ${EIGEN3_INCLUDE_DIR}")
+  include_directories(${EIGEN3_INCLUDE_DIR})
+  if ("3.3.4" VERSION_EQUAL EIGEN3_VERSION_STRING AND CMAKE_COMPILER_IS_GNUCC)
+    message(STATUS "Avoid build error of Eigen3 v3.3.4 using -Wno-error=int-in-bool-context")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error=int-in-bool-context")
+  endif()
+else()
+  message(STATUS "Disabling model BMF because Eigen3 was not found. If it's installed, use EIGEN3_HINT to hint cmake about the location of Eigen3Config.cmake")
 endif()
 
 set(SIMGRID_HAVE_MSG 0)
@@ -856,7 +863,7 @@ if(enable_python)
         string(REGEX REPLACE "^/usr/" "${CMAKE_INSTALL_PREFIX}/" SIMGRID_PYTHON_LIBDIR ${Python3_SITEARCH})
       endif("${CMAKE_INSTALL_PREFIX}" STREQUAL "/usr")
     endif()
-    install(TARGETS python-bindings 
+    install(TARGETS python-bindings
       	    LIBRARY DESTINATION "${SIMGRID_PYTHON_LIBDIR}")
   else()
     message(FATAL_ERROR "Please install pybind11-dev to build the Python bindings (or disable that option).")
@@ -966,6 +973,11 @@ if(pybind11_FOUND)
 else()
   message("        Compile Python bindings .....: OFF (disabled, or pybind11 not found)")
 endif()
+if(Eigen3_FOUND)
+  message("        Eigen3 library ..............: ${EIGEN3_VERSION_STRING} in ${EIGEN3_INCLUDE_DIR}")
+else()
+  message("        Eigen3 library ..............: not found (EIGEN3_HINT='${EIGEN3_HINT}').")
+endif()
 message("        Compile Smpi ................: ${HAVE_SMPI}")
 message("          Smpi fortran ..............: ${SMPI_FORTRAN}")
 message("          MPICH3 testsuite ..........: ${enable_smpi_MPICH3_testsuite}")