Also add GTK2_TARGETS variable containing all imported targets.
Previously, the GTK2_LIBRARIES variable was filled with the paths to the
libraries, and only the GTK2_XXX_LIBRARY variables contained the imported
targets.
Starting with sigc++ 2.5.1, c++11 must be enabled in order to use
sigc++. The GTK2::sigc++ imported target will automatically enable the
required build flags in order to build with the version found on the
system.
FindGTK2 was adding optional include directories to the
interface include dirs regardless of whether or not they
existed. This ensures that the directories only get added
if they are actually found. This is particularly a problem
on Solaris where the gtk2 libs and headers might exist but
the FreeType2 headers might not.
Some modules change CMake minimum required version when they are
included. For example:
cmake_minimum_required(VERSION 2.8.12)
message("${CMAKE_MINIMUM_REQUIRED_VERSION}")
include(CheckTypeSize)
message("${CMAKE_MINIMUM_REQUIRED_VERSION}")
will produce the following output:
2.8.12
2.6
This patch ensures that when you include a CMake module the minimum
required version and the policies set are left unchanged.
Fixes Issue #14864
This function avoids creating the targets when the required
dependencies were not found.
Also fix some wrong dependency and some typo.
${FREETYPE_INCLUDE_DIR_ft2build} ${FREETYPE_INCLUDE_DIR_freetype2} are
now required for gtkmm component
Some libraries (e.g. gio) are not necessary, and often not available
with older GTK2 versions, therefore GTK_LIBRARIES should not contain
GTK2_XXX-NOT_FOUND for these libraries.
As discussed on the mailing list, freetype includes used in GTK2
headers libraries do not require to link the library explicitly (even
though it is already linked by GTK2 libraries.
Also remove _GTK2_ADD_TARGET_LIBRARIES no longer used and use
${FREETYPE_INCLUDE_DIR_ft2build} ${FREETYPE_INCLUDE_DIR_freetype2}
variables instead of ${FREETYPE_INCLUDE_DIRS}
If the GTK_XXX_LIBRARY_DEBUG library is available, it is now used when
linking in debug mode XXX.
A new set of variables GTK_XXX_LIBRARY_RELEASE is added and the
original GTK_XXX_LIBRARY uses the optimized/debug syntax.
Before this, when creating GTK2_LIBRARIES, FindGTK2 added the GTK
dependencies in wrong order into GTK2_LIBRARIES. With dynamic libraries
this is not a major problem, but when linking to static gtk libraries,
the linker outputs a lot of undefined symbols. Reorder the calls that
append libraries to GTK2_LIBRARIES to respect dependency order.
Daniele E. Domenichelli
Brad King
Chuck Atkins
Rolf Eike Beer
Kitware Robot
Daniele E. Domenichelli
Rodolfo Schulz de Lima
Philip Lowman