prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: missing-require
Description: A test library that depends on a non-existent package
Version: 1.0.0
Requires: this-package-does-not-exist >= 1.0
Libs: -L${libdir} -lmissing-require
Cflags: -I${includedir}/missing-require