Make the yacc rules safe for parallel make. See discussion on pgsql-patches

and comment in src/backend/parser/Makefile for the technical details.
This commit is contained in:
Peter Eisentraut 2001-11-16 16:32:33 +00:00
parent 7c50767f08
commit aff53b27f0
6 changed files with 38 additions and 17 deletions

View File

@ -1,4 +1,4 @@
# $Header: /cvsroot/pgsql/contrib/cube/Makefile,v 1.5 2001/09/06 10:49:29 petere Exp $
# $Header: /cvsroot/pgsql/contrib/cube/Makefile,v 1.6 2001/11/16 16:32:33 petere Exp $
subdir = contrib/cube
top_builddir = ../..
@ -12,7 +12,9 @@ DOCS = README.cube
REGRESS = cube
cubeparse.c cubeparse.h: cubeparse.y
cubeparse.c: cubeparse.h ;
cubeparse.h: cubeparse.y
ifdef YACC
$(YACC) -d $(YFLAGS) -p cube_yy $<
mv -f y.tab.c cubeparse.c

View File

@ -1,4 +1,4 @@
# $Header: /cvsroot/pgsql/contrib/seg/Makefile,v 1.5 2001/09/06 10:49:30 petere Exp $
# $Header: /cvsroot/pgsql/contrib/seg/Makefile,v 1.6 2001/11/16 16:32:33 petere Exp $
subdir = contrib/seg
top_builddir = ../..
@ -11,7 +11,9 @@ DOCS = README.seg
REGRESS = seg
segparse.c segparse.h: segparse.y
segparse.c: segparse.h ;
segparse.h: segparse.y
ifdef YACC
$(YACC) -d $(YFLAGS) -p seg_yy $<
mv -f y.tab.c segparse.c

View File

@ -2,7 +2,7 @@
#
# Makefile for the bootstrap module
#
# $Header: /cvsroot/pgsql/src/backend/bootstrap/Makefile,v 1.28 2001/08/22 20:02:56 petere Exp $
# $Header: /cvsroot/pgsql/src/backend/bootstrap/Makefile,v 1.29 2001/11/16 16:32:33 petere Exp $
#
#-------------------------------------------------------------------------
@ -25,7 +25,7 @@ SUBSYS.o: $(OBJS)
$(LD) $(LDREL) $(LDOUT) $@ $^
bootstrap.o bootscanner.c: $(srcdir)/bootstrap_tokens.h
bootstrap.o bootscanner.o: $(srcdir)/bootstrap_tokens.h
# `sed' rules to remove conflicts between bootstrap scanner and parser
@ -37,7 +37,9 @@ sed -e 's/^yy/Int_yy/g' \
endef
$(srcdir)/bootparse.c $(srcdir)/bootstrap_tokens.h: bootparse.y Makefile
$(srcdir)/bootparse.c: $(srcdir)/bootstrap_tokens.h ;
$(srcdir)/bootstrap_tokens.h: bootparse.y Makefile
ifdef YACC
$(YACC) -d $(YFLAGS) $<
$(sed-magic) < y.tab.c > $(srcdir)/bootparse.c

View File

@ -2,7 +2,7 @@
#
# Makefile for parser
#
# $Header: /cvsroot/pgsql/src/backend/parser/Makefile,v 1.34 2001/08/09 18:13:23 petere Exp $
# $Header: /cvsroot/pgsql/src/backend/parser/Makefile,v 1.35 2001/11/16 16:32:33 petere Exp $
#
#-------------------------------------------------------------------------
@ -20,15 +20,26 @@ all: SUBSYS.o
SUBSYS.o: $(OBJS)
$(LD) $(LDREL) $(LDOUT) $@ $^
$(srcdir)/gram.c $(srcdir)/parse.h: gram.y
# There is no correct way to write a rule that generates two files.
# Rules with two targets don't have that meaning, they are merely
# shorthand for two otherwise separate rules. To be safe for parallel
# make, we must chain the dependencies like this. The semicolon is
# important, otherwise make will choose the built-in rule for
# gram.y=>gram.c.
$(srcdir)/gram.c: $(srcdir)/parse.h ;
$(srcdir)/parse.h: gram.y
ifdef YACC
$(YACC) -d $(YFLAGS) $<
mv y.tab.c $(srcdir)/gram.c
mv y.tab.h $(srcdir)/parse.h
mv -f y.tab.c $(srcdir)/gram.c
mv -f y.tab.h $(srcdir)/parse.h
else
@$(missing) bison $< $@
endif
$(srcdir)/scan.c: scan.l
ifdef FLEX
$(FLEX) $(FLEXFLAGS) -Pbase_yy -o'$@' $<

View File

@ -1,4 +1,4 @@
# $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Makefile,v 1.77 2001/09/19 14:09:32 meskes Exp $
# $Header: /cvsroot/pgsql/src/interfaces/ecpg/preproc/Makefile,v 1.78 2001/11/16 16:32:33 petere Exp $
subdir = src/interfaces/ecpg/preproc
top_builddir = ../../../..
@ -35,11 +35,13 @@ endif
ecpg: $(OBJS)
$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LIBS) -o $@
$(srcdir)/preproc.c $(srcdir)/preproc.h: preproc.y
$(srcdir)/preproc.c: $(srcdir)/preproc.h ;
$(srcdir)/preproc.h: preproc.y
ifdef YACC
$(YACC) -d $(YFLAGS) $<
mv y.tab.c $(srcdir)/preproc.c
mv y.tab.h $(srcdir)/preproc.h
mv -f y.tab.c $(srcdir)/preproc.c
mv -f y.tab.h $(srcdir)/preproc.h
else
@$(missing) bison $< $@
endif

View File

@ -2,7 +2,7 @@
#
# Makefile for the plpgsql shared object
#
# $Header: /cvsroot/pgsql/src/pl/plpgsql/src/Makefile,v 1.19 2001/10/09 04:15:38 tgl Exp $
# $Header: /cvsroot/pgsql/src/pl/plpgsql/src/Makefile,v 1.20 2001/11/16 16:32:33 petere Exp $
#
#-------------------------------------------------------------------------
@ -64,7 +64,9 @@ pl_gram.o pl_scan.o pl_handler.o pl_comp.o pl_exec.o pl_funcs.o: plpgsql.h $(src
# Note: Since the yacc and lex files are shipped in the distribution,
# they must be generated in the srcdir (as opposed to builddir).
$(srcdir)/pl_gram.c $(srcdir)/pl.tab.h: gram.y
$(srcdir)/pl_gram.c: $(srcdir)/pl.tab.h ;
$(srcdir)/pl.tab.h: gram.y
ifdef YACC
$(YACC) -d $(YFLAGS) $<
sed -e 's/yy/plpgsql_yy/g' -e 's/YY/PLPGSQL_YY/g' < y.tab.c > $(srcdir)/pl_gram.c