duplicate preprocessor error

[Ted Llewellyn <llewell () ieee org>]

 I am getting an error when I run snort:

Initializing Preprocessors!
ERROR (null) (0) => Duplicate preprocessor keyword!
Fatal Error, Quitting..


 Please note that my snort.conf file consists entirely of:

var HOME_NET any

var EXTERNAL_NET any

 In other words, there are no preprocessor keywords.  So, perhaps 
someone could tell me what this error report really means.

 This is snort compiled from source 1.9.0 with mysql  and spade support 
(in other words, I applied the spade patch and told it where to find 
mysql).  This is a Debian woody system, kernel 2.4.16, glibc, gcc 2.95 I 
think.

 I compiled on a different, although also a Debian machine, with spade 
support and did not get this error.  The only difference is the mysql 
support.  When I couldn't find a duplicate preprocessor entry I tried 
the stripped down snort.conf and still get the error.  In fact I get the 
error when I specify the -c option at all; I got it once when I didn't 
put in a correct filename.  So, this has nothing to do with the 
snort.conf, it has something to do with the build.

 FYI, snort does run in packet sniffing mode with just the -v switch.

 Is this a known bug? An unknown bug?  I see that someone asked this 
question before, and didn't seem to get any kind of answer that would 
help them.

 So, here's my config.log:


This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

configure:587: checking for a BSD compatible install
configure:640: checking whether build environment is sane
configure:697: checking whether make sets ${MAKE}
configure:743: checking for working aclocal
configure:756: checking for working autoconf
configure:769: checking for working automake
configure:782: checking for working autoheader
configure:795: checking for working makeinfo
configure:811: checking for gcc
configure:924: checking whether the C compiler (gcc  ) works
configure:940: gcc -o conftest    conftest.c  1>&5
configure:966: checking whether the C compiler (gcc  ) is a cross-compiler
configure:971: checking whether we are using GNU C
configure:999: checking whether gcc accepts -g
configure:1034: checking for gcc option to accept ANSI C
configure:1113: checking for ranlib
configure:1144: checking for gcc
configure:1257: checking whether the C compiler (gcc -g -O2 ) works
configure:1273: gcc -o conftest -g -O2   conftest.c  1>&5
configure:1299: checking whether the C compiler (gcc -g -O2 ) is a 
cross-compile
r
configure:1304: checking whether we are using GNU C
configure:1332: checking whether gcc accepts -g
configure:1399: checking host system type
configure:1423: checking whether byte ordering is bigendian
configure:1656: checking for sparc alignment
configure:1668: checking how to run the C preprocessor
configure:1751: checking for strings.h
configure:1791: checking for string.h
configure:1831: checking for stdlib.h
configure:1871: checking for unistd.h
configure:1911: checking for sys/sockio.h
configure:1951: checking for paths.h
configure:1990: checking for inet_ntoa in -lnsl
configure:2040: checking for socket in -lsocket
configure:2226: checking whether printf must be declared
configure:2226: checking whether fprintf must be declared
configure:2226: checking whether syslog must be declared
configure:2226: checking whether puts must be declared
configure:2226: checking whether fputs must be declared
configure:2226: checking whether fputc must be declared
configure:2226: checking whether fopen must be declared
configure:2226: checking whether fclose must be declared
configure:2226: checking whether fwrite must be declared
configure:2226: checking whether fflush must be declared
configure:2226: checking whether getopt must be declared
configure:2226: checking whether bzero must be declared
configure:2226: checking whether bcopy must be declared
configure:2226: checking whether memset must be declared
configure:2226: checking whether strtol must be declared
configure:2226: checking whether strcasecmp must be declared
configure:2226: checking whether strncasecmp must be declared
configure:2226: checking whether strerror must be declared
configure:2226: checking whether perror must be declared
configure:2226: checking whether socket must be declared
configure:2226: checking whether sendto must be declared
configure:2226: checking whether vsnprintf must be declared
configure:2226: checking whether snprintf must be declared
configure:2226: checking whether strtoul must be declared
configure:2286: checking for snprintf
configure:2341: checking for strlcpy
configure:2396: checking for strlcat
configure:2451: checking for strerror
configure:2514: gcc -c -g -O2 -Wall   conftest.c 1>&5
configure: In function `main':
configure:2510: warning: assignment discards qualifiers from pointer 
target type
configure:2554: checking for floor in -lm
configure:2603: checking for pcap_datalink in -lpcap
configure:2686: checking for mysql
configure:2755: checking for compress in -lz
configure:4088: checking for u_int8_t
configure:4121: checking for u_int16_t
configure:4154: checking for u_int32_t
configure:4210: checking for a BSD compatible install




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