add dpkg-deb command
diff --git a/archival/ar.c b/archival/ar.c
index bd54bb6..596574e 100644
--- a/archival/ar.c
+++ b/archival/ar.c
@@ -39,7 +39,7 @@
 /*
  * return the headerL_t struct for the filename descriptor
  */
-static ar_headers_t get_headers(int srcFd)
+extern ar_headers_t get_headers(int srcFd)
 {
 	typedef struct raw_ar_header_s {	/* Byte Offset */
 		char name[16];	/*  0-15 */
diff --git a/archival/tar.c b/archival/tar.c
index 04e351e..4971e47 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -134,7 +134,7 @@
 typedef struct TarInfo TarInfo;
 
 /* Local procedures to restore files from a tar file.  */
-static int readTarFile(int tarFd, int extractFlag, int listFlag, 
+extern int readTarFile(int tarFd, int extractFlag, int listFlag, 
 		int tostdoutFlag, int verboseFlag, char** extractList,
 		char** excludeList);
 
@@ -153,7 +153,7 @@
 	exit(EXIT_FAILURE);
 }
 
-static int tar_unzip_init(int tarFd)
+extern int tar_unzip_init(int tarFd)
 {
 	int child_pid;
 	static int unzip_pipe[2];