Fix Qt5 issue for conda

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@3142 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: fba226ce40c3b20cd53bc1c4a199d309180faa1f

1 files changed, 35 insertions, 31 deletions

diff --git a/src/GudhUI/CMakeLists.txt b/src/GudhUI/CMakeLists.txt
index 374195d0..2503a03e 100644
--- a/src/GudhUI/CMakeLists.txt
+++ b/src/GudhUI/CMakeLists.txt
@@ -1,37 +1,41 @@
 cmake_minimum_required(VERSION 2.8)
 project(GudhUI)
 
-find_package(Qt5 COMPONENTS Widgets Xml OpenGL)
-find_package(QGLViewer)
+# Need to find OpenGL first as find_package(Qt5) tries to #include"GL/gl.h" on some platforms
 find_package(OpenGL)
 
-if ( CGAL_FOUND AND Qt5_FOUND AND OPENGL_FOUND AND QGLVIEWER_FOUND AND NOT CGAL_VERSION VERSION_EQUAL 4.8.0)
-
-  set(CMAKE_AUTOMOC ON)
-  set(CMAKE_AUTOUIC ON)
-  set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
-  SET(Boost_USE_STATIC_LIBS ON)
-  SET(Boost_USE_MULTITHREAD OFF)
-  include_directories (${QGLVIEWER_INCLUDE_DIR})
- 
-  add_executable  ( GudhUI 
-    gui/gudhui.cpp
-    gui/MainWindow.cpp
-    gui/Menu_k_nearest_neighbors.cpp	
-    gui/Menu_uniform_neighbors.cpp
-    gui/Menu_edge_contraction.cpp  
-    gui/Menu_persistence.cpp
-    view/Viewer_instructor.cpp				
-    view/Viewer.cpp
-  )	
-  target_link_libraries( GudhUI Qt5::Widgets Qt5::Xml Qt5::OpenGL )
-  target_link_libraries( GudhUI ${QGLVIEWER_LIBRARIES} )
-  target_link_libraries( GudhUI ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} )	
-  if (TBB_FOUND)
-    target_link_libraries( GudhUI ${TBB_LIBRARIES})
+if (OPENGL_FOUND)
+  find_package(Qt5 COMPONENTS Widgets Xml OpenGL)
+  find_package(QGLViewer)
+  
+  if ( CGAL_FOUND AND Qt5_FOUND AND QGLVIEWER_FOUND AND NOT CGAL_VERSION VERSION_EQUAL 4.8.0)
+  
+    set(CMAKE_AUTOMOC ON)
+    set(CMAKE_AUTOUIC ON)
+    set(CMAKE_INCLUDE_CURRENT_DIR ON)
+  
+    SET(Boost_USE_STATIC_LIBS ON)
+    SET(Boost_USE_MULTITHREAD OFF)
+    include_directories (${QGLVIEWER_INCLUDE_DIR})
+   
+    add_executable  ( GudhUI 
+      gui/gudhui.cpp
+      gui/MainWindow.cpp
+      gui/Menu_k_nearest_neighbors.cpp	
+      gui/Menu_uniform_neighbors.cpp
+      gui/Menu_edge_contraction.cpp  
+      gui/Menu_persistence.cpp
+      view/Viewer_instructor.cpp				
+      view/Viewer.cpp
+    )	
+    target_link_libraries( GudhUI Qt5::Widgets Qt5::Xml Qt5::OpenGL )
+    target_link_libraries( GudhUI ${QGLVIEWER_LIBRARIES} )
+    target_link_libraries( GudhUI ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY} )	
+    if (TBB_FOUND)
+      target_link_libraries( GudhUI ${TBB_LIBRARIES})
+    endif()
+  
+    install(TARGETS GudhUI DESTINATION bin)
+  
   endif()
-
-  install(TARGETS GudhUI DESTINATION bin)
-
-endif()
+endif(OPENGL_FOUND)
\ No newline at end of file