diff options
Diffstat (limited to 'src/backend')
| -rw-r--r-- | src/backend/parser/Makefile | 5 | ||||
| -rw-r--r-- | src/backend/parser/scan.l | 3 |
2 files changed, 6 insertions, 2 deletions
diff --git a/src/backend/parser/Makefile b/src/backend/parser/Makefile index 665250b9e76..0bdb3249a2e 100644 --- a/src/backend/parser/Makefile +++ b/src/backend/parser/Makefile @@ -17,7 +17,7 @@ OBJS= analyze.o gram.o keywords.o kwlookup.o parser.o \ parse_expr.o parse_func.o parse_node.o parse_oper.o parse_param.o \ parse_relation.o parse_target.o parse_type.o parse_utilcmd.o scansup.o -FLEXFLAGS = -CF +FLEXFLAGS = -CF -b -p -p include $(top_srcdir)/src/backend/common.mk @@ -51,6 +51,7 @@ endif scan.c: scan.l ifdef FLEX $(FLEX) $(FLEXFLAGS) -o'$@' $< + @if [ `wc -l <lex.backup` -eq 1 ]; then rm lex.backup; else echo "Scanner requires backup, see lex.backup."; exit 1; fi else @$(missing) flex $< $@ endif @@ -62,3 +63,5 @@ gram.o keywords.o parser.o: gram.h # gram.c, gram.h, and scan.c are in the distribution tarball, so they # are not cleaned here. +clean distclean maintainer-clean: + rm -f lex.backup diff --git a/src/backend/parser/scan.l b/src/backend/parser/scan.l index 4f9af543d68..12db1900a0b 100644 --- a/src/backend/parser/scan.l +++ b/src/backend/parser/scan.l @@ -17,7 +17,8 @@ * for handling float numbers and continued string literals. If you change * the lexical rules, verify that you haven't broken the no-backtrack * property by running flex with the "-b" option and checking that the - * resulting "lex.backup" file says that no backing up is needed. + * resulting "lex.backup" file says that no backing up is needed. (As of + * Postgres 9.2, this check is made automatically by the Makefile.) * * * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group |