XEmacs 21.2.46 doesn't configure properly under cygwin

[Dr. Volker Zell]

To : XEmacs Beta Test <xemacs-beta at xemacs dot org>
Subject : XEmacs 21.2.46 doesn't configure properly under cygwin 
>From : "Dr. Volker Zell" <Dr dot Volker dot Zell at oracle dot com>
Date : 23 Mar 2001 16:17:04 +0100
List-Id : XEmacs Beta Testers <xemacs-beta.xemacs.org>
References : <15032.27048.278428.548@mule.m17n.org>

Hi

I get the following error when trying to configure the latest xemacs under cygwin
as usual (this means for me the following configure run):

LIBS='-L/usr/local/lib -lssl -lcrypto' ./configure --with-mule --package-path=/usr/local/lib/xemacs/site-packages:/usr/local/lib/xemacs/xemacs-packages:/usr/lob/xemacs/mule-packages --cppflags=-I/usr/local/include --site-prefixes=/usr/local/pgsql --with_file_coding=yes --with-sound=native --with_msw=no >CONFIGURE-LOG 2>&1

.....

X11 compilation variables:
x_libraries = '/usr/X11R6/lib'
x_includes = '/usr/X11R6/include'
X_CFLAGS = ' -I/usr/X11R6/include'
X_LIBS = ' -L/usr/X11R6/lib'
X_PRE_LIBS = ' -lSM -lICE'
X_EXTRA_LIBS = ' -lipc'

    Defining BITMAPDIR = "/usr/X11R6/include/X11/bitmaps:/usr/X11R6/include/bitmaps"
checking for X defines extracted by xmkmf
    Defining FUNCPROTO = 15
    Defining NARROWPROTO
    Defining __i386__
    Defining WIN32_LEAN_AND_MEAN
    Defining X_LOCALE
    Defining _MT
    Defining _X86_
    Defining __STDC__
    Defining NO_TCP_H
    Defining __CYGWIN__
    Defining _XOPEN_SOURCE
    Defining _REENTRANT
    Defining _POSIX_C_SOURCE = 199309L
    Defining _BSD_SOURCE
    Defining _SVID_SOURCE
    Defining _GNU_SOURCE
    Defining X_SOURCE
checking for X11/Intrinsic.h... no
configure: error: Unable to find X11 header files.


This is from config.log:
configure:6445: checking for X11/Intrinsic.h
configure:6453: gcc -E   -I/usr/local/pgsql/include  -Wno-sign-compare -fno-caller-saves   -I/usr/X11R6/include conftest.c >/dev/null 2>conftest.out
In file included from configure:6448:
confdefs.h:56: warning: `__STDC__' redefined
configure: failed program was:
#line 6448 "configure"
#include "confdefs.h"
#include <X11/Intrinsic.h>


Any hints ???

This used to work in xemacs-21.2.45.

By the way I use:

gcc driver version 2.95.3-1 (cygwin special) executing gcc version gcc-2.95.3-1


Ciao
  Volker