Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
meson.build:499:15: ERROR: Dependency "libffado" not found, tried pkgconfig
Meson build system reports that a required dependency `libffado` was not found. Compilation of the source can not proceed.