Silence automake warnings about missing program/library whenever the _SOURCES suffix is used for temporary variable names. warning: variable 'gdi_SOURCES' is defined but no program or library has 'gdi' as canonical name (possible typo) Acked-by: Matt Turner <mattst88@gmail.com> Reported-by: Ilia Mirkin <imirkin@alum.mit.edu> Reported-by: Johannes Obermayr <johannesobermayr@gmx.de> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70581 Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>