#	NOT NetBSD
#
# Rules used to fetch a GNU package.  Expects GNUHOSTDIST to be set
# and <bsd.own.mk> to be previously .include'd.
#
# New interface:
#
#   * When using the `cleandir' target, defining CLEANFETCHED=yes will
#     additionally remove all the fetched files.
#     This is particularly useful when a GNU package is updated.
#
# The rest should be operations hidden to the normal programmers.
#
# How to use: (maintainers manual)
#
#   * put a fetch.sh script one directory below the GNUHOSTDIST;
#
#   * .include "path/to/minix/Makefile.fetchgnu", after having
#     defined GNUHOSTDIST and before any use of the variable below;
#
#   * insert ${fetch_done} as source before performing any operation
#     on the files under GPL license which are usually found
#     within NetBSD src/ tree;
#
#   * rinse and repeat for every target which assumes the presence of
#    these files, and for every Makefile operating upon them.
#
#
# TODO: does not handle correctly the cases where there are more than
# one package downloaded by fetch.sh (e.g.gnu/dist with texinfo+gmake):
# .gitignore only "protects" the first package which triggers.

.if !defined(__MINIX) || !defined(GNUHOSTDIST)
.error Bad logic in Makefiles.
.endif

.if !defined(_MINIX_FETCHGNU_MK_)
_MINIX_FETCHGNU_MK_=1

# MINIX /usr/src does not have the sources for the GNU utilities
# in-tree, for licensing reasons. So to successfully use them while
# cross-compiling, we have to fetch them. The success of that operation
# is indicated by the presence of a .gitignore file in the corresponding
# source parent directory, which also conveniently hides from git.
.if exists(${GNUHOSTDIST:H}/fetch.sh)
${GNUHOSTDIST:H}/.gitignore: ${GNUHOSTDIST:H}/fetch.sh
	SED=${TOOL_SED} ${HOST_SH} ${GNUHOSTDIST:H}/fetch.sh
	@test -e ${GNUHOSTDIST}/configure
	@echo "${MODULE:U${.CURDIR:T}:C,gcc[0-9]*,gcc,:C,gmake*,make,}-*.tar.*z*" >> $@
	@echo ${GNUHOSTDIST:T} >> $@

# Do the fetching as an extra step, to force serialization
.fetch_done: ${GNUHOSTDIST:H}/.gitignore
	@touch $@
fetch_done=.fetch_done

# Special target for MINIX, reset the source tree as pristine
# Note it does NOT remove the downloaded tarball
.if ${CLEANFETCHED:Uno} == "yes"
cleandir: clean_gnu_src
clean_gnu_src:
	-rm -r -f ${GNUHOSTDIST} ${GNUHOSTDIST:H}/.gitignore
.endif # CLEANFETCHED == yes

clean: clean.fetchgnu
clean.fetchgnu:
	-@rm -f .fetch_done

.endif # exists(GNUHOSTDIST:H/fetch.sh) on MINIX

.endif	# !defined(_MINIX_FETCHGNU_MK_)