Date: Thu, 12 Jun 2003 21:48:38 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Ruslan Ermilov <ru@freebsd.org> Cc: current@freebsd.org Subject: Re: Makefile.yp aka /var/yp/Makefile.dist Message-ID: <20030613024838.GI53468@dan.emsphone.com> In-Reply-To: <20030611174551.GA14100@sunbay.com> References: <20030611174551.GA14100@sunbay.com>
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In the last episode (Jun 11), Ruslan Ermilov said: > Just as a precaution, does anyone have any objections to my removing > of these funny $^ sequences from Makefile.yp? They were apparently > used to insert something into the map generation pipeline just before > the yp_mkdb(8) invokation, but recent additions to this file did not > follow this "rule". > > ypservers: $(YPSERVERS) > @echo "Updating $@..." > $(CAT) $(YPSERVERS) | \ > - $(AWK) '{ if ($$1 != "" && $$1 !~ "^#.*") print $$0"\t"$$0 }' $^ \ > + $(AWK) '{ if ($$1 != "" && $$1 !~ "^#.*") print $$0"\t"$$0 }' \ > | $(DBLOAD) -i $(YPSERVERS) -o $(YPMAPDIR)/$@ - $(TMP); \ > $(RMV) $(TMP) $@ > @$(DBLOAD) -c $^ is gmake syntax for "all prerequisites", but bsd make has never recognized that particular variable, so afaik it has always been ignored (rev 1.1 even has them). There's also a useless use of cat in there. If you wanted, you could do something like this (for all targets except netgroup, which calls revnetgroup inbetween cat and awk): ypservers: $(YPSERVERS) @echo "Updating $@..." - $(CAT) $(YPSERVERS) | \ - $(AWK) '{ if ($$1 != "" && $$1 !~ "^#.*") print $$0"\t"$$0 }' $^ \ + $(AWK) '{ if ($$1 != "" && $$1 !~ "^#.*") print $$0"\t"$$0 }' $(YPSERVERS) \ | $(DBLOAD) -i $(YPSERVERS) -o $(YPMAPDIR)/$@ - $(TMP); \ $(RMV) $(TMP) $@ @$(DBLOAD) -c -- Dan Nelson dnelson@allantgroup.com
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