Otherwise build won't work when --enable-maintainer-mode used:
doc/Makefile.am:24: MAINTAINERCLEANFILES was already defined in condition TRUE, which includes condition MAINTAINER_MODE ...
doc/Makefile.am:10: ... MAINTAINERCLEANFILES' previously defined here frontend/Makefile.am: installingbuild-scripts/depcomp'
Makefile.am: installing `./INSTALL'
Otherwise build won't work when --enable-maintainer-mode used: doc/Makefile.am:24: MAINTAINERCLEANFILES was already defined in condition TRUE, which includes condition MAINTAINER_MODE ... doc/Makefile.am:10: ...
MAINTAINERCLEANFILES' previously defined here frontend/Makefile.am: installing
build-scripts/depcomp' Makefile.am: installing `./INSTALL'Fixes: 4554d1b32d04595f5fd11b99f0ca14779632ca1a