Including FindPkgConfig directly into scripts is not a recommended practice.
Doing so will cause CMake to complain with a warning.
Replaced with find_package(PkgConfig QUIET)
(http://gta.nongnu.org). This allows to read and write floating point
image data. Unlike other formats, GTA also allows very good compression
ratios for floating point data. The compression method can be selected
with the COMPRESSION option of the plugin.
"
