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mprove Gtk2/3 options in cmake

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Update to cmake files for to include minimum versions, and tidy up gtk operation.

Files updated:
CMakeLists.txt:
  WITH_GTK now uses Gtk3 by default. If not found then Gtk2 is used.
  WITH_GTK_2_X forces Gtk2.x use

cmake/OpenCVFindLibsGUI.cmake
  Updated selection logic to implement methodology described above.
  Implemented warning if Gtk3 not found (and not overridden)
  Implemented error if Gtk does not meet minimum required version

cmake/OpenCVMinDepVersions.cmake
  Added minimum Gtk version of 2.18.0
This commit is contained in:
Tony
2013-11-26 21:35:03 +00:00
parent 5368f12b33
commit 69dc840583
3 changed files with 14 additions and 4 deletions
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cmake/OpenCVFindLibsGUI.cmake
+12 -3
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@@ -41,12 +41,21 @@ endif()
# --- GTK ---
ocv_clear_vars(HAVE_GTK HAVE_GTK3 HAVE_GTHREAD HAVE_GTKGLEXT)
if(WITH_GTK AND NOT HAVE_QT)
if(WITH_GTK3)
CHECK_MODULE(gtk+-3.0 HAVE_GTK3)
else()
if(WITH_GTK_2_X)
CHECK_MODULE(gtk+-2.0 HAVE_GTK)
if(HAVE_GTK AND (ALIASOF_gtk+-2.0_VERSION VERSION_LESS MIN_VER_GTK))
message (FATAL_ERROR "Gtk support requires a minimum gtk+ version of ${MIN_VER_GTK} (${ALIASOF_gtk+-2.0_VERSION} found)")
endif()
else()
CHECK_MODULE(gtk+-3.0 HAVE_GTK3)
if(NOT HAVE_GTK3)
message(WARNING "Unable to locate Gtk3 development libraries")
endif()
endif()
CHECK_MODULE(gthread-2.0 HAVE_GTHREAD)
if(HAVE_GTK OR HAVE_GTK3 AND NOT HAVE_GTHREAD)
message(FATAL_ERROR "gthread not found. This library is required when building with Gtk support")
endif()
if(WITH_OPENGL AND NOT HAVE_GTK3)
CHECK_MODULE(gtkglext-1.0 HAVE_GTKGLEXT)
endif()