Add pkg-config support for libkml fork
|Reported by:||Bas Couwenberg||Owned by:||warmerdam|
As discussed on gdal-dev the current
m4/ax_lib_libkml.m4 doesn't detect the new libkml because it still expects the thirdparty boost headers.
The attached patch add
pkg-config support for libkml as used by the libkml fork. It falls back to the old manual method if no suitable version is found with