declaration fix for dump.c (Karl)

fixed the is_fixed stuff in table.c/data.c (Brian)
autoconf (Carl)

src/extras/Makefile

@@ -1,5 +1,22 @@
+# Generated automatically from Makefile.in by configure.
+
+SHELL = /bin/sh
+
+top_srcdir = ..
+srcdir = .
+prefix = /usr/local
+exec_prefix = ${prefix}
+bindir = $(exec_prefix)/bin
+infodir = $(exec_prefix)/info
+libdir = $(exec_prefix)/lib
+mandir = $(exec_prefix)/man/man1
 
 CC = gcc
+CPPFLAGS = 
+CFLAGS = $(CPPFLAG) -g -O2
+LDFLAGS = 
+LIBS = 
+INSTALL= @INSTALL@
 
 PROGS = mdb-dump
 OBJS = dump.o