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Handle empty __DPSRCS.d, avoiding executing commands like "cat > .depend"

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in directories where only non-C/C++ files are in SRCS (e.g.: the forth
code for sparc bootblocks).

Patch from Luke.
This commit is contained in:
martin 2003-08-06 13:55:11 +00:00
parent ac9d94f21a
commit 28ef1fc8fe
1 changed files with 4 additions and 2 deletions
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6
share/mk/bsd.dep.mk
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@ -1,4 +1,4 @@
# $NetBSD: bsd.dep.mk,v 1.55 2003/08/01 17:04:01 lukem Exp $
# $NetBSD: bsd.dep.mk,v 1.56 2003/08/06 13:55:11 martin Exp $
##### Basic targets
.PHONY: cleandepend
@ -24,11 +24,13 @@ __DPSRCS.notd= ${__DPSRCS.all:O:u:N*.d}
.NOPATH: .depend ${__DPSRCS.d}
.if !empty(__DPSRCS.d) # {
${__DPSRCS.d}: ${__DPSRCS.notd} ${DPSRCS}
.endif # }
.depend: ${__DPSRCS.d}
@rm -f .depend
cat ${__DPSRCS.d} > .depend
cat ${__DPSRCS.d} /dev/null > .depend
.SUFFIXES: .d .c .m .s .S .C .cc .cpp .cxx