Postgres failed to compile on debian x86

This is a fresh Debian stable install. I think there's a very good
chance I'm missing some required library, since I've had to install
everything up to this point by hand. Any suggestions are hugely
appreciated.

The config.log is 600k so I'm not going to post the whole thing.
There are heaps of errors in it, including lots of "syntax error
before 'size_t'" and "WARNING: xxx.h: present but cannot be
compiled". The error that configure quite on is "checking types of
arguments for accept()... configure: error: could not determine
argument types.

Here are some bits that may be relevant. If anyone can tell me which
parts of this massive log would be more helpful, I'll be happy to
post them. Thanks in advance:

$ ./configure --with-perl --with-openssl --with-includes=/usr/
include/linux/:/usr/include --with-libraries=/usr/lib/

## --------- ##
## Platform. ##
## --------- ##

hostname = squall
uname -m = i686
uname -r = 2.4.27-2-386
uname -s = Linux
uname -v = #1 Mon May 16 16:47:51 JST 2005

/usr/bin/uname -p = unknown
/bin/uname -X = unknown

/bin/arch = i686
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
hostinfo = unknown
/bin/machine = unknown
/usr/bin/oslevel = unknown
/bin/universe = unknown

PATH: /sbin
PATH: /bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /usr/bin/X11
PATH: /usr/local/sbin
PATH: /usr/local/bin

<snip>

Thread model: posix
gcc version 3.3.5 (Debian 1:3.3.5-13)
configure:2086: $? = 0
configure:2088: gcc -V </dev/null >&5
gcc: `-V' option must have argument

<snip>

configure:2550: gcc -c -g -O2 conftest.c >&5
conftest.c:2: error: syntax error before "me"
configure:2556: $? = 1
configure: failed program was:
| #ifndef __cplusplus
| choke me
| #endif
configure:2721: checking if gcc supports -Wdeclaration-after-statement
configure:2741: gcc -c -O2 -Wall -Wmissing-prototypes -Wpointer-arith
-Winline -Wdeclaration-after-statement -D_GNU_SOURCE conftest.c >&5
cc1: error: unrecognized option `-Wdeclaration-after-statement'
configure:2747: $? = 1
configure: failed program was:
| /* confdefs.h. */