From: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
Date: Thu, 3 Jul 2008 09:28:38 +0000 (+0000)
Subject: Add the parser build rules back into the liblwgeom Makefile, so now any changes to... 
X-Git-Tag: 1.4.0b1~874
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=94babd74afdba76e14f3bdc42faa8b3b3a38f1ef;p=postgis

Add the parser build rules back into the liblwgeom Makefile, so now any changes to either the lexer or parser source files will automatically invoke a rebuild of the relevant output files during make

git-svn-id: http://svn.osgeo.org/postgis/trunk@2820 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/configure.ac b/configure.ac
index d24c9c7bc..363b264c9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,6 +46,16 @@ POSTGIS_MINOR_VERSION=`cat Version.config | grep POSTGIS_MINOR_VERSION | sed 's/
 POSTGIS_MICRO_VERSION=`cat Version.config | grep POSTGIS_MICRO_VERSION | sed 's/[[^=]]*=\([[0-9]]\)/\1/g'`
 
 
+dnl
+dnl Search for flex/bison to build the parser
+dnl
+
+AC_PROG_LEX
+AC_PROG_YACC
+AC_SUBST([LEX])
+AC_SUBST([YACC])
+
+
 dnl
 dnl Search for xsltproc which is required for building documentation
 dnl
diff --git a/liblwgeom/Makefile.in b/liblwgeom/Makefile.in
index a5aaf5186..04563f46d 100644
--- a/liblwgeom/Makefile.in
+++ b/liblwgeom/Makefile.in
@@ -13,6 +13,9 @@
 CC=@CC@
 CFLAGS=@CFLAGS@ @PICFLAGS@ @WARNFLAGS@ 
 
+YACC=@YACC@
+LEX=@LEX@
+
 # Standalone LWGEOM objects
 SA_OBJS=measures.o \
 	box2d.o \
@@ -48,4 +51,13 @@ clean:
 # Command to build each of the .o files
 $(SA_OBJS): %.o: %.c
 	$(CC) $(CFLAGS) -c -o $@ $<
+
+# Commands to generate the lexer and parser from input files
+wktparse.tab.c: wktparse.y
+	$(YACC) -vd -p lwg_parse_yy wktparse.y
+	mv -f y.tab.c wktparse.tab.c
+	mv -f y.tab.h wktparse.tab.h
+ 
+lex.yy.c: wktparse.lex wktparse.tab.c
+	$(LEX) -Plwg_parse_yy -i -f -o 'lex.yy.c' wktparse.lex