Modification for Porquerolles Workshop

Bar_code_persistence and alpha_complex_persistence


git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/alphashapes@893 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 63d2d21d5ff7c9a94a67eafc326bf8a561bf8166

1 files changed, 40 insertions, 0 deletions

diff --git a/src/GudhUI/CMakeLists.txt b/src/GudhUI/CMakeLists.txt
index 71f4fd1a..5c2afdd0 100644
--- a/src/GudhUI/CMakeLists.txt
+++ b/src/GudhUI/CMakeLists.txt
@@ -78,6 +78,46 @@ if ( CGAL_FOUND AND QT4_FOUND AND OPENGL_FOUND AND QGLVIEWER_FOUND )
   target_link_libraries( GudhUI ${QT_LIBRARIES} ${QGLVIEWER_LIBRARIES} )
   target_link_libraries( GudhUI ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} )	
 
+###############################################################################
+  if (NOT CGAL_VERSION VERSION_LESS 4.7.0)
+    message(STATUS "CGAL version: ${CGAL_VERSION}.")
+
+    include( ${CGAL_USE_FILE} )
+     # In CMakeLists.txt, when include(${CGAL_USE_FILE}), CXX_FLAGS are overwritten.
+    # cf. http://doc.cgal.org/latest/Manual/installation.html#title40
+    # A workaround is to add "-std=c++11" again.
+    # A fix would be to use https://cmake.org/cmake/help/v3.1/prop_gbl/CMAKE_CXX_KNOWN_FEATURES.html 
+    # or even better https://cmake.org/cmake/help/v3.1/variable/CMAKE_CXX_STANDARD.html
+    # but it implies to use cmake version 3.1 at least.
+    if(NOT MSVC)
+      include(CheckCXXCompilerFlag)
+      CHECK_CXX_COMPILER_FLAG(-std=c++11 COMPILER_SUPPORTS_CXX11)
+      if(COMPILER_SUPPORTS_CXX11)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+      endif()
+    endif()
+    # - End of workaround
+
+    find_package(Eigen3 3.1.0)
+    if (EIGEN3_FOUND)
+      message(STATUS "Eigen3 version: ${EIGEN3_VERSION}.")
+      include( ${EIGEN3_USE_FILE} )
+      if (CMAKE_BUILD_TYPE MATCHES Debug)
+        # For programs to be more verbose
+        add_definitions(-DDEBUG_TRACES)
+      endif()
+      
+      add_executable (acp alpha_complex_persistence.cpp)
+      target_link_libraries(acp ${Boost_SYSTEM_LIBRARY} ${CGAL_LIBRARY} ${QT_LIBRARIES})
+
+    else()
+      message(WARNING "Eigen3 not found. Version 3.1.0 is required for Alpha shapes feature.")
+    endif()
+  else()
+    message(WARNING "CGAL version: ${CGAL_VERSION} is too old to compile Alpha shapes feature. Version 4.6.0 is required.")
+  endif ()
+###############################################################################
+
 else()
   message(STATUS "NOTICE: GudhUI requires CGAL, the QGLViewer, OpenGL and Qt4, and will not be compiled.")
 endif()