diff --git a/src/backend/regex/Makefile b/src/backend/regex/Makefile
index 88d81f60ab32e26bbee9c9d6883ae6b7f93a1329..47b9439b8a1df24bd8a693e9bde48135333f7022 100644
--- a/src/backend/regex/Makefile
+++ b/src/backend/regex/Makefile
@@ -4,7 +4,7 @@
 #    Makefile for regex
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/backend/regex/Makefile,v 1.8 1998/07/26 04:30:34 scrappy Exp $
+#    $Header: /cvsroot/pgsql/src/backend/regex/Makefile,v 1.9 1999/05/21 06:27:54 ishii Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -14,9 +14,13 @@ include ../../Makefile.global
 CFLAGS += -I..
 CFLAGS += -DPOSIX_MISTAKE 
 
+DEBUGOBJ =
+
 OBJS = regcomp.o regerror.o regexec.o regfree.o
+
 ifdef MULTIBYTE
 CFLAGS+= $(MBFLAGS)
+DEBUGOBJ += ../utils/mb/SUBSYS.o
 endif
 
 all: SUBSYS.o
@@ -24,11 +28,14 @@ all: SUBSYS.o
 SUBSYS.o: $(OBJS)
 	$(LD) -r -o SUBSYS.o $(OBJS)
 
+retest: retest.o SUBSYS.o $(DEBUGOBJ)
+	$(CC) -o retest retest.o SUBSYS.o $(DEBUGOBJ)
+
 depend dep:
 	$(CC) -MM $(CFLAGS) *.c >depend
 
 clean: 
-	rm -f SUBSYS.o $(OBJS) 
+	rm -f SUBSYS.o $(OBJS) retest retest.o
 
 ifeq (depend,$(wildcard depend))
 include depend
diff --git a/src/backend/regex/retest.c b/src/backend/regex/retest.c
new file mode 100644
index 0000000000000000000000000000000000000000..13dd0761f0281a209cd487e90db51ac39f5d2dd2
--- /dev/null
+++ b/src/backend/regex/retest.c
@@ -0,0 +1,42 @@
+/*
+ * a simple regexp debug program
+ * 
+ * $Header: /cvsroot/pgsql/src/backend/regex/Attic/retest.c,v 1.1 1999/05/21 06:27:54 ishii Exp $
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "postgres.h"
+#include <regex/regex.h>
+
+int main()
+{
+  int sts;
+  regex_t re;
+  char buf[1024];
+  char *p;
+
+  printf("type in regexp string: ");
+  if (!fgets(buf,sizeof(buf),stdin)) {
+    exit(0);
+  }
+  p = strchr(buf, '\n');
+  if (p) *p = '\0';
+
+  sts = pg95_regcomp(&re, buf, 1);
+  printf("regcomp: parses \"%s\" and returns %d\n",buf, sts);
+  for (;;) {
+    printf("type in target string: ");
+    if (!fgets(buf,sizeof(buf),stdin)) {
+      exit(0);
+    }
+    p = strchr(buf, '\n');
+    if (p) *p = '\0';
+
+    sts = pg95_regexec(&re, buf, 0, 0, 0);
+    printf("regexec: returns %d\n", sts);
+  }
+}
+
+void elog(int lev, const char *fmt,...)
+{}