dev-python/catkin_pkg: Initial import. Ebuild by me.

Package-Manager: portage-2.2.20.1

dev-python/catkin_pkg/files/catkin_prefix.patch

@@ -0,0 +1,28 @@
+Allow CATKIN_PREFIX_PATH to work as CMAKE_PREFIX_PATH:
+When building with SYSROOT!=/, CMAKE_PREFIX_PATH is the same as with SYSROOT=/
+but we need to find packages in SYSROOT.
+
+Index: catkin_pkg-0.2.8/src/catkin_pkg/workspaces.py
+===================================================================
+--- catkin_pkg-0.2.8.orig/src/catkin_pkg/workspaces.py
++++ catkin_pkg-0.2.8/src/catkin_pkg/workspaces.py
+@@ -42,15 +42,16 @@ CATKIN_WORKSPACE_MARKER_FILE = '.catkin_
+ 
+ def get_spaces(paths=None):
+     """
+-    Return a list of spaces based on the CMAKE_PREFIX_PATH or passed in list of workspaces.
++    Return a list of spaces based on the CMAKE_PREFIX_PATH/CATKIN_PREFIX_PATH or passed in list of workspaces.
+     It resolves the source space for each devel space and ignores non-catkin paths.
+     :param paths_to_order: list of paths
+     :param prefix_paths: list of prefixes, must not end with '/'
+     """
+     if paths is None:
+-        if 'CMAKE_PREFIX_PATH' not in os.environ:
+-            raise RuntimeError('Neither the environment variable CMAKE_PREFIX_PATH is set nor was a list of paths passed.')
++        if 'CMAKE_PREFIX_PATH' not in os.environ and 'CATKIN_PREFIX_PATH' not in os.environ :
++            raise RuntimeError('None of the environment variables CMAKE_PREFIX_PATH or CATKIN_PREFIX_PATH are set nor was a list of paths passed.')
+         paths = os.environ['CMAKE_PREFIX_PATH'].split(os.pathsep) if os.environ['CMAKE_PREFIX_PATH'] else []
++        paths += os.environ['CATKIN_PREFIX_PATH'].split(os.pathsep) if os.environ['CATKIN_PREFIX_PATH'] else []
+ 
+     spaces = []
+     for path in paths: