Since non-PIC support (see http://sourceware.org/ml/binutils/2008-06/msg00280.html for instance),
binutils are a lot more picky about symbols.
In this case, either dump wants to use glibc's __progname or it wants to define its own with the very
same name (overriding the one from glibc). Both possibilities look wrong and  result in FTBFS on mips.

Strangely, binutils are not complaining on other arches.

---
 dump/main.c    |    2 	1 +	1 -	0 !
 restore/main.c |    2 	1 +	1 -	0 !
 2 files changed, 2 insertions(+), 2 deletions(-)

Index: dump-0.4b41/dump/main.c
===================================================================
--- dump-0.4b41.orig/dump/main.c	2009-05-20 12:20:35.000000000 -0400
+++ dump-0.4b41/dump/main.c	2009-05-20 12:20:38.000000000 -0400
@@ -184,7 +184,7 @@ long	uncomprblks = 0;/* uncompressed blo
 long smtc_errno;
 
 #ifdef	__linux__
-char	*__progname;
+extern char	*__progname;
 #endif
 
 int 	maxbsize = 1024*1024;     /* XXX MAXBSIZE from sys/param.h */
Index: dump-0.4b41/restore/main.c
===================================================================
--- dump-0.4b41.orig/restore/main.c	2005-07-07 05:16:08.000000000 -0400
+++ dump-0.4b41/restore/main.c	2009-05-20 12:20:52.000000000 -0400
@@ -130,7 +130,7 @@ long long curtapepos;
 long smtc_errno;
 
 #if defined(__linux__) || defined(sunos)
-char	*__progname;
+extern char	*__progname;
 #endif
 
 static void obsolete (int *, char **[]);