Make the standard stopword files be sought relative to share_dir, so

that a tsearch2 installation can be relocatable.

contrib/tsearch2/Makefile

-# $PostgreSQL: pgsql/contrib/tsearch2/Makefile,v 1.7 2004/08/20 20:13:09 momjian Exp $
+# $PostgreSQL: pgsql/contrib/tsearch2/Makefile,v 1.8 2004/10/17 23:09:31 tgl Exp $
 
 MODULE_big = tsearch2
 OBJS = dict_ex.o dict.o snmap.o stopword.o common.o prs_dcfg.o \
@@ -39,8 +39,7 @@ $(SUBDIRS:%=%-recursive):
 	$(MAKE) -C $(subst -recursive,,$@) SUBSYS.o
 
 tsearch2.sql: tsearch.sql.in
-	sed -e 's,MODULE_PATHNAME,$$libdir/$(MODULE_big),g' \
-	    -e 's,DATA_PATH,$(datadir)/contrib,g' $< >$@
+	sed -e 's,MODULE_PATHNAME,$$libdir/$(MODULE_big),g' $< >$@
 
 untsearch2.sql: untsearch.sql.in
 	cp $< $@

contrib/tsearch2/stopword.c

@@ -2,12 +2,12 @@
  * stopword library
  * Teodor Sigaev <teodor@sigaev.ru>
  */
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
+#include "postgres.h"
+
 #include <ctype.h>
 
-#include "postgres.h"
+#include "miscadmin.h"
+
 #include "common.h"
 #include "dict.h"
 
@@ -51,10 +51,23 @@ readstoplist(text *in, StopList * s)
 	if (in && VARSIZE(in) - VARHDRSZ > 0)
 	{
 		char	   *filename = text2char(in);
-		FILE	   *hin = NULL;
+		FILE	   *hin;
 		char		buf[STOPBUFLEN];
 		int			reallen = 0;
 
+		/* if path is relative, take it as relative to share dir */
+		if (!is_absolute_path(filename))
+		{
+			char	sharepath[MAXPGPATH];
+			char   *absfn;
+
+			get_share_path(my_exec_path, sharepath);
+			absfn = palloc(strlen(sharepath) + strlen(filename) + 2);
+			sprintf(absfn, "%s/%s", sharepath, filename);
+			pfree(filename);
+			filename = absfn;
+		}
+
 		if ((hin = fopen(filename, "r")) == NULL)
 			ereport(ERROR,
 					(errcode(ERRCODE_CONFIG_FILE_ERROR),

contrib/tsearch2/tsearch.sql.in

@@ -77,7 +77,7 @@ CREATE FUNCTION snb_lexize(internal,internal,int4)
 insert into pg_ts_dict select 
 	'en_stem', 
 	'snb_en_init(text)',
-	'DATA_PATH/english.stop',
+	'contrib/english.stop',
 	'snb_lexize(internal,internal,int4)',
 	'English Stemmer. Snowball.'
 ;
@@ -90,7 +90,7 @@ CREATE FUNCTION snb_ru_init(text)
 insert into pg_ts_dict select 
 	'ru_stem', 
 	'snb_ru_init(text)',
-	'DATA_PATH/russian.stop',
+	'contrib/russian.stop',
 	'snb_lexize(internal,internal,int4)',
 	'Russian Stemmer. Snowball.'
 ;