diff -ru dvibook/Dvibook/Imakefile dvibook-patched/Dvibook/Imakefile
--- dvibook/Dvibook/Imakefile	Sat Mar 19 07:00:00 1994
+++ dvibook-patched/Dvibook/Imakefile	Mon Apr  7 22:17:55 2003
@@ -12,7 +12,7 @@
 
 FILES	=Imakefile dvibook.man Makefile.raw $(SRCS)
 
-all: dvibook
+all:: dvibook
 
 NormalProgramTarget(dvibook,$(OBJS),$(DEPLIBS),$(LOCAL_LIBRARIES),$(SYSLIBS))
 InstallProgram(dvibook, $(BINDIR))
diff -ru dvibook/Dvitodvi/Imakefile dvibook-patched/Dvitodvi/Imakefile
--- dvibook/Dvitodvi/Imakefile	Sat Mar 19 07:00:00 1994
+++ dvibook-patched/Dvitodvi/Imakefile	Mon Apr  7 22:18:25 2003
@@ -12,7 +12,7 @@
 
 FILES	=Imakefile dvitodvi.man Makefile.raw $(SRCS)
 
-all: dvitodvi
+all:: dvitodvi
 
 NormalProgramTarget(dvitodvi,$(OBJS),$(DEPLIBS),$(LOCAL_LIBRARIES),$(SYSLIBS))
 InstallProgram(dvitodvi, $(BINDIR))
diff -ru dvibook/libtex/error.c dvibook-patched/libtex/error.c
--- dvibook/libtex/error.c	Sat Mar 19 07:00:00 1994
+++ dvibook-patched/libtex/error.c	Mon Mar 10 10:07:53 2003
@@ -38,8 +38,10 @@
 
 extern char *ProgName;		/* program name from argv[0] */
 extern int errno;		/* Unix system-call error */
+#ifndef __DARWIN__
 extern char *sys_errlist[];	/* table of error number => string */
 extern int sys_nerr;		/* size of table */
+#endif
 
 static FILE *trap_file;		/* error diversion file, if any */
 static void (*trap_fn)();	/* trap function */