Rewrite crunchgen target handling for progs so that it can be parallelized.

This covers 'clean', 'cleandepend', 'cleandir', 'obj', 'objlink' and
'build-tools'.

This uses the same method as bsd.subdir.mk.

MFC after:	2 weeks
X-MFC-With:	r289731
Sponsored by:	EMC / Isilon Storage Division

1 files changed, 13 insertions, 23 deletions

diff --git a/share/mk/bsd.crunchgen.mk b/share/mk/bsd.crunchgen.mk
index acef93b..d6a32ef 100644
--- a/share/mk/bsd.crunchgen.mk
+++ b/share/mk/bsd.crunchgen.mk
@@ -123,29 +123,32 @@ objs: $(OUTMK)
 
 # <sigh> Someone should replace the bin/csh and bin/sh build-tools with
 # shell scripts so we can remove this nonsense.
-build-tools:
 .for _tool in $(CRUNCH_BUILDTOOLS)
+build-tools-${_tool}:
 	${_+_}cd $(.CURDIR)/../../${_tool}; \
-	${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} obj; \
-	${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} build-tools
+	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} obj; \
+	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} build-tools
+build-tools: build-tools-${_tool}
 .endfor
 
 # Use a separate build tree to hold files compiled for this crunchgen binary
 # Yes, this does seem to partly duplicate bsd.subdir.mk, but I can't
 # get that to cooperate with bsd.prog.mk.  Besides, many of the standard
 # targets should NOT be propagated into the components.
-cleandepend cleandir obj objlink:
+.for __target in clean cleandepend cleandir obj objlink
 .for D in $(CRUNCH_SRCDIRS)
 .for P in $(CRUNCH_PROGS_$(D))
 .ifdef CRUNCH_SRCDIR_${P}
-	${_+_}cd ${CRUNCH_SRCDIR_$(P)} && \
-	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CANONICALOBJDIR} ${MAKE} \
-	    DIRPRFX=${DIRPRFX}${P}/ ${CRUNCH_BUILDOPTS} ${.TARGET}
+__dir=	${CRUNCH_SRCDIR_$(P)}
 .else
-	${_+_}cd $(.CURDIR)/../../${D}/${P} && \
-	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CANONICALOBJDIR} ${MAKE} \
-	    DIRPRFX=${DIRPRFX}${P}/ ${CRUNCH_BUILDOPTS} ${.TARGET}
+__dir=	${.CURDIR}/../../${D}/${P}
 .endif
+${__target}_crunchdir_${P}: .PHONY .MAKE
+	${_+_}cd ${__dir} && \
+	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CANONICALOBJDIR} ${MAKE} \
+	    DIRPRFX=${DIRPRFX}${P}/ ${CRUNCH_BUILDOPTS} ${__target}
+${__target}: ${__target}_crunchdir_${P}
+.endfor
 .endfor
 .endfor
 
@@ -154,16 +157,3 @@ clean:
 	${_+_}if [ -e ${.OBJDIR}/$(OUTMK) ]; then				\
 		${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} -f $(OUTMK) clean;	\
 	fi
-.for D in $(CRUNCH_SRCDIRS)
-.for P in $(CRUNCH_PROGS_$(D))
-.ifdef CRUNCH_SRCDIR_${P}
-	${_+_}cd ${CRUNCH_SRCDIR_$(P)} && \
-	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CANONICALOBJDIR} ${MAKE} \
-	    DIRPRFX=${DIRPRFX}${P}/ ${CRUNCH_BUILDOPTS} ${.TARGET}
-.else
-	${_+_}cd $(.CURDIR)/../../${D}/${P} && \
-	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CANONICALOBJDIR} ${MAKE} \
-	    DIRPRFX=${DIRPRFX}${P}/ ${CRUNCH_BUILDOPTS} ${.TARGET}
-.endif
-.endfor
-.endfor