I seem to have to add AC_CONFIG_LIBOBJ_DIR([lib]) to my
configure.ac, otherwise {LT}LIBOBJDIR is not set, and relocatable.c is not found when building in the src directory of my project. But I don't find this documented anywhere in gnulib. Should a note be added to relocatable-lib{,-lgpl}, or am I doing things wrong?
Also, it seems that the AC_LIBOBJ stanza from relocatable-lib should also be in relocatable-lib-lgpl.