prefix=/tmp/ffmpeg/build
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: x265
Description: H.265/HEVC video encoder
Version: 1.9
Libs: -L${libdir} -lx265
Libs.private: -lstdc++ -lm -lrt -ldl
Cflags: -I${includedir}