Disable installation when used as meson subproject #1463
Description
When the library is used as Meson subproject it is included in top level project as dependency from the subproject. With current implementation of the library, when main project is installed the library is also installed which is undesirable.
Meson build script should be changed to allow installation only if the library is not used as subproject.
The installation step should be guarded with:
if not meson.is_subproject()
# steps for install headers and pkgconfig
endif