About pkg_check_modules

[EricksonLu]

I found your cmakelist have
pkg_check_modules(GSTREAMER-FFT REQUIRED gstreamer-fft-1.0)
But i can't find it from command line "pkg-config --list-all |grep gstreamer-"
And its report is

gstreamer-player-1.0           GStreamer Player - GStreamer Player convenience library
gstreamer-video-1.0            GStreamer Video Library - Video base classes and helper functions
gstreamer-rtsp-server-1.0      gst-rtsp-server - GStreamer based RTSP server
gstreamer-riff-1.0             GStreamer RIFF Library - RIFF helper functions
gstreamer-1.0                  GStreamer - Streaming media framework
gstreamer-net-1.0              GStreamer networking library - Network-enabled GStreamer plug-ins and clocking
gstreamer-plugins-good-1.0     GStreamer Good Plugin libraries - Currently includes the photography interface library
gstreamer-bad-base-1.0         GStreamer bad base classes - Bad base classes for GStreamer elements
gstreamer-pbutils-1.0          GStreamer Base Utils Library - General utility functions
gstreamer-codecparsers-1.0     GStreamer codec parsers - Bitstream parsers for GStreamer elements
gstreamer-app-1.0              GStreamer Application Library - Helper functions and base classes for application integration
gstreamer-check-0.10           GStreamer check unit testing - Unit testing helper library for GStreamer modules
gstreamer-dataprotocol-0.10    GStreamer data protocol library - Data protocol for plug-ins
gstreamer-audio-1.0            GStreamer Audio library - Audio helper functions and base classes
gstreamer-mpegts-1.0           GStreamer MPEG-TS - GStreamer MPEG-TS support
gstreamer-0.10                 GStreamer - Streaming media framework
gstreamer-tag-1.0              GStreamer Tag Library - Tag base classes and helper functions
gstreamer-base-0.10            GStreamer base classes - Base classes for GStreamer elements
gstreamer-controller-0.10      GStreamer controller - Dynamic parameter control for GStreamer elements
gstreamer-plugins-base-1.0     GStreamer Base Plugins Libraries - Streaming media framework, base plugins libraries
gstreamer-allocators-1.0       GStreamer Allocators Library - Allocators implementation

Could you give me some hint? Thanks