X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/bcda50d908652a231af89aa5764f6f20d6e7f271..eb680c004b00a59218e7cdaa77fc2c96066c3548:/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1a4a2459c5..ec4f39bbd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -217,21 +217,25 @@ if(enable_ns3)
 endif()
 
 ### Check for Eigen library
-set(SIMGRID_HAVE_EIGEN3 OFF)
-find_package (Eigen3 3.3 CONFIG
-              HINTS ${EIGEN3_HINT})
-if (Eigen3_FOUND)
-  set(SIMGRID_HAVE_EIGEN3 ON) 
-  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")
+if ((NOT DEFINED EIGEN3_HINT) OR (NOT EIGEN3_HINT STRLESS_EQUAL "OFF"))
+  set(SIMGRID_HAVE_EIGEN3 OFF)
+  find_package (Eigen3 3.3 CONFIG
+                HINTS ${EIGEN3_HINT})
+  if (Eigen3_FOUND)
+    set(SIMGRID_HAVE_EIGEN3 ON)
+    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()
+  mark_as_advanced(Eigen3_DIR)
 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")
+  message(STATUS "Disabling Eigen3 as requested by the user (EIGEN3_HINT is set to 'OFF')")
 endif()
-mark_as_advanced(Eigen3_DIR)
 
 # Check for our JSON dependency
 set(SIMGRID_HAVE_JSON 0)
@@ -964,4 +968,3 @@ execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${PROJECT_BINARY_DIR}
 file(WRITE ${PROJECT_BINARY_DIR}/Testing/Notes/Build  "GIT version : ${GIT_VERSION}\n")
 file(APPEND ${PROJECT_BINARY_DIR}/Testing/Notes/Build "Release     : simgrid-${release_version}\n")
 
-INCLUDE(Dart)