diff --git a/cde/programs/dtsr/dtsrcreate.c b/cde/programs/dtsr/dtsrcreate.c
index 00e2991d9..e5d468c48 100644
--- a/cde/programs/dtsr/dtsrcreate.c
+++ b/cde/programs/dtsr/dtsrcreate.c
@@ -96,6 +96,8 @@
 #include <locale.h>
 #include "vista.h"
 
+char *ensure_end_slash (char *pathstr); // lib/DtSearch/lang.c
+
 #define PROGNAME		"DTSRCREATE"
 #define	DEFAULT_MINWORD		(MINWIDTH_TOKEN + 1)
 #define	STANDARD_MAXWORD	(DtSrMAXWIDTH_HWORD - 1)
diff --git a/cde/programs/dtsr/dtsrhan.c b/cde/programs/dtsr/dtsrhan.c
index a0b6ad7ce..5ce00aaac 100644
--- a/cde/programs/dtsr/dtsrhan.c
+++ b/cde/programs/dtsr/dtsrhan.c
@@ -109,6 +109,8 @@
 #include <time.h>
 #include <locale.h>
 
+char    *strupr(char *); // lib/DtSearch/dtsrve.c
+
 #define PROGNAME	"DTSRHAN"
 #define	MS_chandel	5
 #define RECS_PER_DOT	10L
diff --git a/cde/programs/dtsr/dtsrindex.c b/cde/programs/dtsr/dtsrindex.c
index dcc4e9b62..79e85d200 100644
--- a/cde/programs/dtsr/dtsrindex.c
+++ b/cde/programs/dtsr/dtsrindex.c
@@ -129,6 +129,10 @@ extern void     read_wordstr (struct or_hwordrec * glob_word, int vista_num);
 extern void     write_wordstr (struct or_hwordrec * glob_word, int vista_num);
 extern void     fill_data1 (char *ch);
 
+// lib/DtSearch/vstfunct.c
+void fillnew_wordrec (struct or_hwordrec * glob_word, int vista_num);
+void init_user_interrupt(void); // lib/DtSearch/userint.c
+
 #define PROGNAME	"DTSRINDEX"
 
 #define BATCH_SIZE	10000L
diff --git a/cde/programs/dtsr/dtsrload.c b/cde/programs/dtsr/dtsrload.c
index 6fb7e0731..b2787c444 100644
--- a/cde/programs/dtsr/dtsrload.c
+++ b/cde/programs/dtsr/dtsrload.c
@@ -104,6 +104,8 @@
 #include <sys/types.h>
 #include <netinet/in.h>
 
+void init_user_interrupt(void); // lib/DtSearch/userint.c
+
 #define PROGNAME        "DTSRLOAD"
 #define RECS_PER_DOT    20
 #define TERMINATE_LINE  if (dotcount>0) { putchar('\n'); }