From fa1ff1284f51341d452b6adc3a667d13a5d35747 Mon Sep 17 00:00:00 2001
From: fgodi <fgodi@636b058d-ea47-450e-bf9e-a15bfbe3eedb>
Date: Mon, 4 Apr 2016 13:14:31 +0000
Subject: cmake lists

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/bottleneckDistance@1092 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 77b2a427cb3ff80b9a0c5d1c71f9f1de11547530
---
 src/CMakeLists.txt | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'src/CMakeLists.txt')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index ceb993fa..1436d65a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -40,4 +40,20 @@ else()
   add_subdirectory(example/Alpha_shapes)
   add_subdirectory(example/Bottleneck)
 
-endif()  
+endif()
+
+    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
-- 
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