Files
libguestfs/subdir-rules.mk
Richard W.M. Jones 074e3b5c67 generator: Don't always recurse into the generator directory.
Previously, every subdirectory that contained generated files would
cause a recursion into the ../generator directory.  This was slow and
unnecessary.  Only recurse if the generator actually needs to be
rerun.

Note this changes the semantics slightly: For example if you added a
new action and just ran `make -C ocaml' then previously the generator
would be rerun, but now it would not.  However I'm not convinced the
previous semantics were that useful, particularly considering that
with this change a simple `make' is much faster.
2013-06-04 12:41:11 +01:00

27 lines
1.2 KiB
Makefile

# libguestfs
# Copyright (C) 2009-2013 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# Individual Makefile.am's should define generator_built if that
# subdirectory contains any files which are built by the generator.
# Set generator_built to the list of those files.
$(generator_built): $(top_builddir)/generator/stamp-generator
$(top_builddir)/generator/stamp-generator: $(top_builddir)/generator/generator
! test -f $(top_builddir)/generator/Makefile || \
$(MAKE) -C $(top_builddir)/generator stamp-generator