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    dnl Process this file with autoconf to produce a configure script.
    dnl Author: Michael Patra   <micky@marie.physik.tu-berlin.de>
    dnl                         <patra@itp1.physik.tu-berlin.de>
    AC_REVISION([configure.in 1.00])
    AC_INIT(controls/edit.c)		
    
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    AC_CONFIG_HEADER(include/config.h)
    
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    AC_CONFIG_AUX_DIR(tools)
    
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    dnl **** Command-line arguments ****
    
    
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    dnl Default values
    
    LIBEXT=so       # library type .so or .a
    
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    TRACE_MSGS=yes	# the TRACE() macro
    DEBUG_MSGS=yes	# the TRACE(), WARN(), and FIXME() macros.
    
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    AC_ARG_ENABLE(dll,
    
    [  --disable-dll           build static libraries instead of DLLs],
    
    [if test "$enableval" = "no"; then LIBEXT="a"; fi])
    
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    AC_ARG_ENABLE(debug,
    [  --disable-debug         compile out all debugging messages],
    [if test "$enableval" = "no"; then DEBUG_MSGS="no"; fi])
    
    
    AC_ARG_ENABLE(opengl,
    [  --enable-opengl         force usage of OpenGL even if the latter is thread-safe],
    [if test "$enableval" = "no"; then OPENGL="no"; elif test "$enableval" = "yes"; then OPENGL="yes"; fi])
    
    
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    AC_ARG_ENABLE(trace,
    [  --disable-trace         compile out TRACE messages],
    [if test "$enableval" = "no"; then TRACE_MSGS="no"; fi])
    
    
    AC_ARG_WITH(curses,
    [  --without-curses        do not use curses],
    [if test "$withval" = "no"; then CURSES="no"; fi])
    
    
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    AC_ARG_WITH(reentrant-x,
    
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    [  --without-reentrant-x   compile for use with non-reentrant X libraries])
    
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    AC_SUBST(OPTIONS)
    
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    if test "$DEBUG_MSGS" = "no"
    then
        AC_DEFINE(NO_DEBUG_MSGS)
        AC_DEFINE(NO_TRACE_MSGS)
    else
        if test "$TRACE_MSGS" = "no"
        then
            AC_DEFINE(NO_TRACE_MSGS)
        fi
    fi
    
    
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    dnl **** Check for some programs ****
    
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    AC_PROG_MAKE_SET
    AC_PROG_CC
    
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    AC_PROG_CPP
    
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    AC_PATH_XTRA
    
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    AC_PROG_YACC
    AC_PROG_LEX
    
    AC_CHECK_PROGS(XLEX,$LEX flex lex,none)
    if test "$XLEX" = "none"
    then
    	echo "*** Error: No suitable lex found. ***"
    	echo "    Please install the 'flex' package."
    	exit 1
    fi
    AC_DECL_YYTEXT
    
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    AC_PROG_RANLIB
    
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    AC_PROG_INSTALL
    
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    AC_PROG_LN_S
    
    AC_CHECK_PROG(C2MAN,c2man,c2man,\$(TOPSRCDIR)/tools/c2man.pl)
    
    AC_PATH_PROG(LDCONFIG, ldconfig, true, /sbin:/usr/sbin:$PATH)
    
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    dnl Check for lint
    AC_CHECK_PROGS(LINT, lclint lint)
    if test "$LINT" = "lint"
    then
      LINTFLAGS="$LINTFLAGS -errchk=%all,no%longptr64 -errhdr=%user -Ncheck=macro -Nlevel=4"
      dnl LINTFLAGS='-D_SIZE_T "-Dsize_t=unsigned long" -errchk=longptr64'
    fi
    AC_SUBST(LINT)
    AC_SUBST(LINTFLAGS)
    
    
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    dnl **** Check for some libraries ****
    
    
    dnl Check for -lm for BeOS
    AC_CHECK_LIB(m,sqrt)
    
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    dnl Check for -li386 for NetBSD and OpenBSD
    
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    AC_CHECK_LIB(i386,i386_set_ldt)
    
    dnl Check for -lossaudio for NetBSD
    AC_CHECK_LIB(ossaudio,_oss_ioctl)
    
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    dnl Check for -lw for Solaris
    AC_CHECK_LIB(w,iswalnum)
    
    dnl Check for -lnsl for Solaris
    
    AC_CHECK_FUNCS(gethostbyname,, AC_CHECK_LIB(nsl, gethostbyname, X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl", AC_CHECK_LIB(socket, gethostbyname, X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl", , -lnsl), -lsocket))
    
    dnl Check for -lsocket for Solaris
    
    AC_CHECK_FUNCS(connect,,AC_CHECK_LIB(socket,connect))
    
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    dnl Check for -lxpg4 for FreeBSD
    AC_CHECK_LIB(xpg4,setrunelocale)
    
    dnl Check for -lmmap for OS/2
    AC_CHECK_LIB(mmap,mmap)
    
    dnl Check for openpty
    AC_CHECK_FUNCS(openpty,,
    	AC_CHECK_LIB(util,openpty,
    		AC_DEFINE(HAVE_OPENPTY)
    		LIBS="$LIBS -lutil"
    	))
    
    
    AC_CHECK_HEADERS(dlfcn.h,
    	AC_CHECK_FUNCS(dlopen,
    		AC_DEFINE(HAVE_DL_API),
        		AC_CHECK_LIB(dl,dlopen,
    			AC_DEFINE(HAVE_DL_API)
    
    AC_SUBST(X_DLLS)
    X_DLLS=""
    AC_SUBST(XFILES)
    XFILES=""
    
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    AC_SUBST(OPENGLFILES)
    OPENGLFILES=""
    
    AC_SUBST(OPENGL32_DLL)
    OPENGL32_DLL=""
    
    AC_SUBST(DGA2_SRCS)
    DGA2_SRCS=""
    
        XLIB="-lXext -lX11"
    
        ac_save_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $X_CFLAGS"
    
        dnl *** Check for -lXpm
        AC_CHECK_HEADERS(X11/xpm.h,
          [ dnl *** If X11/xpm.h exists...
            AC_CHECK_LIB(Xpm, XpmCreatePixmapFromData,
              [ AC_DEFINE(HAVE_LIBXXPM) X_PRE_LIBS="$X_PRE_LIBS -lXpm"],,
              $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
            )
          ],
          [ dnl *** If X11/xpm.h does not exist...
            dnl NOTE: autoconf does not allow commas inside the third 
            dnl       parameter to AC_CHECK_HEADERS, due to some quoting
            dnl       magic it does.
    	echo "Redhat		:	xpm xpm-devel"
    	echo "Caldera OpenLinux	:	xpm xpm-devel xpm-devel-static"
    
    	echo "Debian/Corel Linux: 	xpm4g xpm4g-dev"
    
    	echo
    	echo "Or get the sources from ftp.x.org and all its mirror sites from "
    	echo "the directory /contrib/libraries."
    	echo
    	exit 1
    
          ]
        )
    
        dnl *** All three of the following tests require X11/Xlib.h
        AC_CHECK_HEADERS(X11/Xlib.h,
          [
            dnl *** Check for X Shm extension
            AC_CHECK_HEADERS(X11/extensions/XShm.h,
                [ dnl *** If X11/extensions/XShm.h exists...
                  AC_CHECK_LIB(Xext, XShmQueryExtension,
                  AC_DEFINE(HAVE_LIBXXSHM),,
                  $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
                ],
                AC_MSG_WARN([Xshm extension not found!!])
            )
    
    
            dnl *** Check for X shape extension
            AC_CHECK_HEADERS(X11/Xlib.h X11/extensions/shape.h,
                [ dnl *** If X11/extensions/shape.h exists...
                  AC_CHECK_LIB(Xext,XShapeQueryExtension,
    	      AC_DEFINE(HAVE_LIBXSHAPE),,
    	      $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
    	    ],
    	    AC_MSG_WARN([XShape extension found!!])
    	)
            
    
            dnl *** Check for XFree86 DGA / DGA 2.0 extension
            AC_CHECK_HEADERS(X11/extensions/xf86dga.h,
                [ dnl *** If X11/extensions/xf86dga.h exists, check 
                  dnl *** for XDGAQueryExtension()...
                  AC_CHECK_LIB(Xxf86dga, XDGAQueryExtension,
                    [ dnl *** If found...
                      AC_DEFINE(HAVE_LIBXXF86DGA2)
                      AC_DEFINE(HAVE_LIBXXF86DGA)
                      X_PRE_LIBS="$X_PRE_LIBS -lXxf86dga"
                      DGA_SRCS='$(DGA_SRCS)'
                      DGA2_SRCS='$(DGA2_SRCS)'
                   ],
                    [ dnl *** If not found, look for XF86DGAQueryExtension()
                      dnl *** instead (DGA 2.0 not found)...
                      AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension,
                        [ AC_DEFINE(HAVE_LIBXXF86DGA)
                          X_PRE_LIBS="$X_PRE_LIBS -lXxf86dga"
                          DGA_SRCS='$(DGA_SRCS)'
                        ],,
                        $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
                      )
                    ],
                    $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
                  )
                ],
                AC_MSG_WARN([DGA extension not found!!])
            )
    
            dnl *** Check for XFree86 VMODE extension
            AC_CHECK_HEADERS(X11/extensions/xf86vmode.h,
                [ dnl *** If X11/extensions/xf86vmode.h exists...
                    AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension,
                      [ AC_DEFINE(HAVE_LIBXXF86VM)
                         X_PRE_LIBS="$X_PRE_LIBS -lXxf86vm"
                      ],,
                      $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
                    )
                ],
                AC_MSG_WARN([XFree86 VMODE extension not found!!])
            )
    
    
            dnl *** Check for XVideo extension supporting XvImages
            AC_CHECK_HEADERS(X11/extensions/Xvlib.h,
                [ dnl *** If X11/extensions/Xvlib.h exists...
                    AC_CHECK_LIB(Xv, XvShmCreateImage,
                      [ AC_DEFINE(HAVE_XVIDEO)
                         X_PRE_LIBS="$X_PRE_LIBS -lXv"
                      ],,
                      $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
                    )
                ],
                AC_MSG_WARN([XVideo extension not found !!])
            )
    
    
          ]
        ) dnl *** End of X11/Xlib.h check
    
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        dnl Check for the presence of OpenGL
    
        if test $OPENGL = "yes" -o $OPENGL = "normal"
    
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    	AC_CHECK_HEADERS(GL/gl.h GL/glx.h GL/glext.h)
    
    	if test "$ac_cv_header_GL_gl_h" = "yes" -a "$ac_cv_header_GL_glx_h" = "yes"
    
    	then
    	    dnl Check for some problems due to old Mesa versions
    
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    	    AC_CACHE_CHECK("for up-to-date OpenGL version", wine_cv_opengl_version_OK,
    
    		[GLenum test = GL_UNSIGNED_SHORT_5_6_5;],
    
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    		[wine_cv_opengl_version_OK="yes"],
    		[wine_cv_opengl_version_OK="no"]
    
                )
    
    	    dnl Check for the thread-safety of the OpenGL library
    	    AC_CACHE_CHECK("for thread-safe OpenGL version", 
    
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    			   wine_cv_opengl_version_threadsafe,
    
                  [saved_libs=$LIBS
    	       LIBS="$X_LIBS -lGL"
    	       AC_TRY_LINK([],[pthread_getspecific();],
    
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    			      [wine_cv_opengl_version_threadsafe="yes"],
    			      [wine_cv_opengl_version_threadsafe="no"])
    
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    	    if test "$wine_cv_opengl_version_OK" = "yes" -a \( "$wine_cv_opengl_version_threadsafe" = "no" -o $OPENGL = "yes" \)
    
    		dnl Check for the presence of the library
    
    		AC_CHECK_LIB(GL,glXCreateContext,
    			     X_PRE_LIBS="$X_PRE_LIBS -lGL"
    			     MESA_SRCS='$(MESA_SRCS)'
    			     ,,
    			     $X_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS)
    
    
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    		if test $ac_cv_lib_GL_glXCreateContext = "yes"
    
    
    			OPENGLFILES='$(OPENGLFILES)'
    			AC_DEFINE(HAVE_OPENGL)
    
    
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    			AC_CHECK_LIB(GL,glXGetProcAddressARB,AC_DEFINE(HAVE_GLX_GETPROCADDRESS),,$X_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS)
    
    			if test $ac_cv_lib_GL_glXGetProcAddressARB = "yes"
    			then
    
    			       AC_CACHE_CHECK("for OpenGL extension functions prototypes", wine_cv_extension_prototypes,
    			          AC_TRY_COMPILE([#include <GL/gl.h>
    
    				  		  #ifdef HAVE_GL_GLEXT_H
    						  # include <GL/glext.h>
    						  #endif
    						  ],
    
    						 [PFNGLCOLORTABLEEXTPROC test_proc;],
    
    						 [wine_cv_extension_prototypes="yes"],
    
    						 [wine_cv_extension_prototypes="no"]
    				  )
    				)
    
    				if test $wine_cv_extension_prototypes = "yes"
    				then
    					AC_DEFINE(HAVE_GLEXT_PROTOTYPES)
    				fi
    
    
        CPPFLAGS="$ac_save_CPPFLAGS"
    
        X_DLLS='$(X_DLLS)'
        XFILES='$(XFILES)'
    
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    dnl **** Check which curses lib to use ***
    
    if test "$CURSES" = "yes"
    
        AC_CHECK_HEADERS(ncurses.h)
        if test "$ac_cv_header_ncurses_h" = "yes"
        then 
            AC_CHECK_LIB(ncurses,waddch)
        fi
        if test "$ac_cv_lib_ncurses_waddch" = "yes"
        then
            AC_CHECK_LIB(ncurses,resizeterm,AC_DEFINE(HAVE_RESIZETERM))
            AC_CHECK_LIB(ncurses,getbkgd,AC_DEFINE(HAVE_GETBKGD))
        else
            AC_CHECK_HEADERS(curses.h)
            if test "$ac_cv_header_curses_h" = "yes"
            then    
                AC_CHECK_LIB(curses,waddch)
                if test "$ac_cv_lib_curses_waddch" = "yes"
                then
                    AC_CHECK_LIB(curses,resizeterm,AC_DEFINE(HAVE_RESIZETERM))
                    AC_CHECK_LIB(curses,getbkgd,AC_DEFINE(HAVE_GETBKGD))
                fi
            fi
    
    dnl **** Check for IPX (currently Linux only) ****
    AC_CACHE_CHECK("for GNU style IPX support", ac_cv_c_ipx_gnu,
     AC_TRY_COMPILE(
       [#include <sys/socket.h>
        #include <netipx/ipx.h>],
       [((struct sockaddr_ipx *)0)->sipx_family == AF_IPX],
    
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       [ac_cv_c_ipx_gnu="yes"],
    
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    if test "$ac_cv_c_ipx_gnu" = "yes"
    then
        AC_DEFINE(HAVE_IPX_GNU)
    fi
    
    
    if test "$ac_cv_c_ipx_gnu" = "no"
    then
     AC_CACHE_CHECK("for linux style IPX support", ac_cv_c_ipx_linux,
      AC_TRY_COMPILE(
        [#include <sys/socket.h>
         #include <asm/types.h>
         #include <linux/ipx.h>],
        [((struct sockaddr_ipx *)0)->sipx_family == AF_IPX],
    
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        [ac_cv_c_ipx_linux="yes"],
    
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      if test "$ac_cv_c_ipx_linux" = "yes"
      then
          AC_DEFINE(HAVE_IPX_LINUX)
      fi
    
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    dnl **** Check for Open Sound System ****
    
    AC_CHECK_HEADERS(sys/soundcard.h machine/soundcard.h soundcard.h, break)
    
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    AC_CACHE_CHECK("for Open Sound System",
    	ac_cv_c_opensoundsystem,
    
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    	AC_TRY_COMPILE([
    
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    		#include <sys/soundcard.h>
    
    	#elif defined(HAVE_MACHINE_SOUNDCARD_H)
    
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    		#include <machine/soundcard.h>
    
    	#elif defined(HAVE_SOUNDCARD_H)
    		#include <soundcard.h>
    
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    	#endif
    	],[
    
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    /* check for one of the Open Sound System specific SNDCTL_ defines */
    #if !defined(SNDCTL_DSP_STEREO)
    #error No open sound system
    #endif
    
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    ],ac_cv_c_opensoundsystem="yes",ac_cv_c_opensoundsystem="no"))
    
    if test "$ac_cv_c_opensoundsystem" = "yes"
    then
        AC_DEFINE(HAVE_OSS)
    fi
    
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    AC_CACHE_CHECK("for Open Sound System/MIDI interface",
    	ac_cv_c_opensoundsystem_midi,
    	AC_TRY_COMPILE([
    	#if defined(HAVE_SYS_SOUNDCARD_H)
    		#include <sys/soundcard.h>
    	#elif defined(HAVE_MACHINE_SOUNDCARD_H)
    		#include <machine/soundcard.h>
    	#elif defined(HAVE_SOUNDCARD_H)
    		#include <soundcard.h>
    	#endif
    	],[
    
    /* check for one of the Open Sound System specific SNDCTL_SEQ defines */
    #if !defined(SNDCTL_SEQ_SYNC)
    #error No open sound system MIDI interface
    #endif
    ],ac_cv_c_opensoundsystem_midi="yes",ac_cv_c_opensoundsystem_midi="no"))
    
    if test "$ac_cv_c_opensoundsystem_midi" = "yes"
    then
        AC_DEFINE(HAVE_OSS_MIDI)
    fi
    
    
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    dnl **** If ln -s doesn't work, use cp instead ****
    if test "$ac_cv_prog_LN_S" = "ln -s"; then : ; else LN_S=cp ; fi
    
    
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    dnl **** Check for gcc strength-reduce bug ****
    
    if test "x${GCC}" = "xyes"
    then
      CFLAGS="$CFLAGS -Wall"
      AC_CACHE_CHECK( "for gcc strength-reduce bug", ac_cv_c_gcc_strength_bug,
                      AC_TRY_RUN([
    int main(void) {
    
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      static int Array[[3]];
    
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      unsigned int B = 3;
      int i;
    
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      for(i=0; i<B; i++) Array[[i]] = i - 3;
      exit( Array[[1]] != -2 );
    
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    }],
        ac_cv_c_gcc_strength_bug="no",
        ac_cv_c_gcc_strength_bug="yes",
        ac_cv_c_gcc_strength_bug="yes") )
      if test "$ac_cv_c_gcc_strength_bug" = "yes"
      then
        CFLAGS="$CFLAGS -fno-strength-reduce"
      fi
    fi
    
    
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    dnl **** Check for underscore on external symbols ****
    
    AC_CACHE_CHECK("whether external symbols need an underscore prefix",
                   ac_cv_c_extern_prefix,
    [saved_libs=$LIBS
    LIBS="conftest_asm.s $LIBS"
    cat > conftest_asm.s <<EOF
    	.globl _ac_test
    _ac_test:
    	.long 0
    EOF
    AC_TRY_LINK([extern int ac_test;],[if (ac_test) return 1],
                ac_cv_c_extern_prefix="yes",ac_cv_c_extern_prefix="no")
    LIBS=$saved_libs])
    if test "$ac_cv_c_extern_prefix" = "yes"
    then
      AC_DEFINE(NEED_UNDERSCORE_PREFIX)
    fi
    
    
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    dnl **** Check for .string in assembler ****
    
    AC_CACHE_CHECK("whether assembler accepts .string",
                   ac_cv_c_asm_string,
    [saved_libs=$LIBS
    LIBS="conftest_asm.s $LIBS"
    cat > conftest_asm.s <<EOF
    	.string "test"
    EOF
    AC_TRY_LINK(,,ac_cv_c_asm_string="yes",ac_cv_c_asm_string="no")
    LIBS=$saved_libs])
    if test "$ac_cv_c_asm_string" = "yes"
    then
      AC_DEFINE(HAVE_ASM_STRING)
    fi
    
    
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    dnl **** Check for working dll ****
    
    
    if test "$LIBEXT" = "so"
    
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    then
    
      AC_CACHE_CHECK("whether we can build a Linux dll",
                     ac_cv_c_dll_linux,
    
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      [saved_cflags=$CFLAGS
      CFLAGS="$CFLAGS -fPIC -shared -Wl,-soname,conftest.so.1.0"
    
      AC_TRY_LINK(,[return 1],ac_cv_c_dll_linux="yes",ac_cv_c_dll_linux="no")
    
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      CFLAGS=$saved_cflags
      ])
    
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      then
    
        LDSHARED="\$(CC) -shared -Wl,-soname,\$(SONAME),-rpath,\$(libdir)"
    
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      else
    
        AC_CACHE_CHECK(whether we can build a UnixWare (Solaris) dll,
    
        CFLAGS="$CFLAGS -fPIC -Wl,-G,-h,conftest.so.1.0"
    
        AC_TRY_LINK(,[return 1],ac_cv_c_dll_unixware="yes",ac_cv_c_dll_unixware="no")
    
        if test "$ac_cv_c_dll_unixware" = "yes"
    
          LDSHARED="\$(CC) -Wl,-G,-h,\$(libdir)/\$(SONAME)"
    
        else
          AC_CACHE_CHECK("whether we can build a NetBSD dll",
                       ac_cv_c_dll_netbsd,
          [saved_cflags=$CFLAGS
          CFLAGS="$CFLAGS -fPIC -Bshareable -Bforcearchive"
          AC_TRY_LINK(,[return 1],ac_cv_c_dll_netbsd="yes",ac_cv_c_dll_netbsd="no")
          CFLAGS=$saved_cflags
          ])
          if test "$ac_cv_c_dll_netbsd" = "yes"
          then
            LDSHARED="ld -Bshareable -Bforcearchive"
          fi
    
      if test "$ac_cv_c_dll_linux" = "no" -a "$ac_cv_c_dll_unixware" = "no" -a "$ac_cv_c_dll_netbsd" = "no"
    
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      fi
    fi
    
    if test "$LIBEXT" = "so"; then
        DLLFLAGS="-fPIC"
    
        DLL_LINK="-L\$(DLLDIR) \$(IMPORTS:%=-l%) -L\$(TOPOBJDIR) -lwine -lwine_unicode"
    
        DLL_LINK="-L\$(DLLDIR) \$(DLLS:%=-l%) -L\$(TOPOBJDIR) -lwine -lwine_unicode \$(X_LIBS) \$(XLIB)"
    
        AC_CACHE_CHECK([whether the linker supports --[[no]]-whole-archive (Linux)],
     	           ac_cv_c_whole_archive,
    
                [saved_cflags=$CFLAGS
                CFLAGS="$CFLAGS -Wl,--whole-archive -Wl,--no-whole-archive"
                AC_TRY_LINK(,[return 1],ac_cv_c_whole_archive="yes",ac_cv_c_whole_archive="no")
                CFLAGS=$saved_cflags
                ])
    
        if test "$ac_cv_c_whole_archive" = "yes"
        then
            DLL_LINK="-Wl,--whole-archive $DLL_LINK -Wl,--no-whole-archive"
        else
            AC_CACHE_CHECK([whether the linker supports -z {all,default}extract (Linux)],
                           ac_cv_c_allextract,
    
    		[saved_cflags=$CFLAGS
    		CFLAGS="$CFLAGS -Wl,-z,allextract -Wl,-z,defaultextract"
    		AC_TRY_LINK(,[return 1],ac_cv_c_allextract="yes",ac_cv_c_allextract="no")
    		CFLAGS=$saved_cflags
    		])
    
            if test "$ac_cv_c_allextract" = "yes"
            then
                DLL_LINK="-Wl,-z,allextract $DLL_LINK -Wl,-z,defaultextract"
    
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    AC_SUBST(DLLFLAGS)
    
    AC_SUBST(LIBEXT)
    
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    dnl **** Check for reentrant libc ****
    dnl
    dnl For cross-compiling we blindly assume that libc is reentrant. This is
    dnl ok since non-reentrant libc is quite rare (mostly old libc5 versions).
    
    
    wine_cv_libc_reentrant=no 
    
    dnl 
    dnl Linux style errno location
    dnl 
    
    AC_CACHE_CHECK("for reentrant libc: __errno_location", wine_cv_libc_r__errno_location,
    
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      [AC_TRY_RUN([int myerrno = 0;
    char buf[256];
    int *__errno_location(){return &myerrno;}
    main(){connect(0,buf,255); exit(!myerrno);}],
    
      wine_cv_libc_r__errno_location=yes, wine_cv_libc_r__errno_location=no,
      wine_cv_libc_r__errno_location=yes )
    ])
    if test "$wine_cv_libc_r__errno_location" = "yes"
    then
        AC_DEFINE(HAVE__ERRNO_LOCATION)
        wine_cv_libc_reentrant=__errno_location 
    fi
    
    dnl
    dnl FreeBSD style errno location
    dnl 
    
    AC_CACHE_CHECK("for reentrant libc: __error", wine_cv_libc_r__error,
      [AC_TRY_RUN([int myerrno = 0;
    
    char buf[256];
    int *__error(){return &myerrno;}
    main(){connect(0,buf,255); exit(!myerrno);}],
    
        wine_cv_libc_r__error=yes, wine_cv_libc_r__error=no,
        wine_cv_libc_r__error=yes )
    
    if test "$wine_cv_libc_r__error" = "yes"
    then
        AC_DEFINE(HAVE__ERROR)
        wine_cv_libc_reentrant=__error 
    fi
    dnl
    dnl Solaris style errno location
    dnl 
    AC_CACHE_CHECK("for reentrant libc: ___errno", wine_cv_libc_r___errno,
      [AC_TRY_RUN([int myerrno = 0;
    char buf[256];
    int *___errno(){return &myerrno;}
    main(){connect(0,buf,255); exit(!myerrno);}],
        wine_cv_libc_r___errno=yes, wine_cv_libc_r___errno=no,
        wine_cv_libc_r___errno=yes )
    ])
    if test "$wine_cv_libc_r___errno" = "yes"
    then
        AC_DEFINE(HAVE___ERRNO)
        wine_cv_libc_reentrant=___errno 
    fi
    
    dnl
    dnl UnixWare style errno location
    dnl 
    AC_CACHE_CHECK("for reentrant libc: __thr_errno", wine_cv_libc_r__thr_errno,
      [AC_TRY_RUN([int myerrno = 0;
    char buf[256];
    int *__thr_errno(){return &myerrno;}
    main(){connect(0,buf,255); exit(!myerrno);}],
        wine_cv_libc_r__thr_errno=yes, wine_cv_libc_r__thr_errno=no,
        wine_cv_libc_r__thr_errno=yes )
    ])
    if test "$wine_cv_libc_r__thr_errno" = "yes"
    then
        AC_DEFINE(HAVE__THR_ERRNO)
        wine_cv_libc_reentrant=__thr_errno 
    fi
    
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    if test "$wine_cv_libc_reentrant" = "no" 
    then
      AC_DEFINE(NO_REENTRANT_LIBC)
    fi
    
    
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    dnl **** Check for reentrant X libraries ****
    dnl
    dnl This may fail to determine whether X libraries are reentrant if
    dnl AC_PATH_XTRA does not set x_libraries. In this case manual configuration
    dnl is possible with the --without-reentrant-x option.
    
    
    if test "$have_x" = "yes" -a "$wine_cv_libc_reentrant" != "no"
    
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    AC_CACHE_CHECK( "for reentrant X libraries", wine_cv_x_reentrant,
    
      [ if test "x$with_reentrant_x" = "xno" 
    
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        then
            wine_cv_x_reentrant=no
        else
    
    	libX11_check=none
    
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    	for dir in "$x_libraries" /usr/lib /usr/local/lib /lib; do
    
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    	    if test -r $dir/libX11.so; then
    
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    		libX11_check="-D $dir/libX11.so"
    		break 1
    	    fi
    
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    	    if test -r $dir/libX11.a; then
    
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    		libX11_check="$dir/libX11.a"
    		break 1
    	    fi
    	done
    	if test "$libX11_check" != "none"; then
    
    	    if nm $libX11_check | grep $wine_cv_libc_reentrant >/dev/null 2>&1
    
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    	    then
    
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    		wine_cv_x_reentrant=yes
    	    else
    		wine_cv_x_reentrant=no
    	    fi
    	else
    	    wine_cv_x_reentrant=unknown
    	fi
        fi ] )
    
    else
        wine_cv_x_reentrant=no
    fi
    
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    if test "$wine_cv_x_reentrant" = "no"
    then
      AC_DEFINE(NO_REENTRANT_X11)
    fi
    
    
    dnl **** Check for endianness ****
    
    AC_C_BIGENDIAN
    
    
    dnl **** Check for functions ****
    
    
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    AC_FUNC_ALLOCA()
    
    	getnetbyaddr \
    	getnetbyname \
    
    	getprotobyname \
    	getprotobynumber \
    	getservbyport \
    	getsockopt \
    	inet_network \
    
    	tcgetattr \
    	timegm \
    	usleep \
    	vfscanf \
    	wait4 \
    	waitpid \
    )
    
    dnl **** Check for header files ****
    
    AC_CHECK_HEADERS(\
    
    	a.out.h \
    	a_out.h \
    	arpa/inet.h \
    
    	arpa/nameser.h \
    	elf.h \
    	float.h \
    	libio.h \
    
    	linux/ucdrom.h \
    	net/if.h \
    	netinet/in.h \
    
    	sys/file.h \
    	sys/filio.h \
    
    	sys/modem.h \
    	sys/mount.h \
    
    	sys/reg.h \
    
    	sys/sockio.h \
    	sys/statfs.h \
    	sys/strtio.h \
    	sys/syscall.h \
    
    	sys/wait.h \
    	sys/v86.h \
    	sys/v86intr.h \
    
    	ucontext.h
    
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    AC_HEADER_STAT()
    
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    AC_C_CONST()
    
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    AC_TYPE_SIZE_T()
    
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    AC_CHECK_SIZEOF(long long,0)
    
    
       
    AC_CACHE_CHECK("whether we can use re-entrant gethostbyname_r Linux style",
       	wine_cv_linux_gethostbyname_r_6,
    	AC_TRY_COMPILE([
    #include <netdb.h>
    	], [
        char *name=NULL;
        struct hostent he;
        struct hostent *result;
        char *buf=NULL;
        int bufsize=0;
        int res,errnr;
        char *addr=NULL;
        int addrlen=0;
        int addrtype=0;
        res=gethostbyname_r(name,&he,buf,bufsize,&result,&errnr);
        res=gethostbyaddr_r(addr, addrlen, addrtype,&he,buf,bufsize,&result,&errnr);
        ],
    	wine_cv_linux_gethostbyname_r_6=yes,
    	wine_cv_linux_gethostbyname_r_6=no
    	)
       )
       if test "$wine_cv_linux_gethostbyname_r_6" = "yes"
       then
          AC_DEFINE(HAVE_LINUX_GETHOSTBYNAME_R_6)
       fi
    
    
    if test "$ac_cv_header_linux_joystick_h" = "yes"
    then
       AC_CACHE_CHECK("whether linux/joystick.h uses the Linux 2.2+ API",
       	wine_cv_linux_joystick_22_api,
    	AC_TRY_COMPILE([
    	#include <sys/ioctl.h>
    	#include <linux/joystick.h>
    
    	struct js_event blub;
    
    	#if !defined(JS_EVENT_AXIS) || !defined(JS_EVENT_BUTTON)
    	#error "no 2.2 header"
    	#endif
    
    	],/*empty*/,
    	wine_cv_linux_joystick_22_api=yes,
    	wine_cv_linux_joystick_22_api=no,
    	wine_cv_linux_joystick_22_api=no
    	)
       )
    
       if test "$wine_cv_linux_joystick_22_api" = "yes"
    
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    dnl **** statfs checks ****
    
    if test "$ac_cv_header_sys_vfs_h" = "yes"
    then
        AC_CACHE_CHECK( "whether sys/vfs.h defines statfs",
    		    wine_cv_sys_vfs_has_statfs,
    	AC_TRY_COMPILE([
    
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    	#include <sys/types.h>
    
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    	#ifdef HAVE_SYS_PARAM_H
    	# include <sys/param.h>
    	#endif
    
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    	#include <sys/vfs.h>
    
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    	],[
    		struct statfs stfs;
    
    
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    		memset(&stfs,0,sizeof(stfs));
    	],wine_cv_sys_vfs_has_statfs=yes,wine_cv_sys_vfs_has_statfs=no
    
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    	)
    
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        )
        if test "$wine_cv_sys_vfs_has_statfs" = "yes"
        then
          AC_DEFINE(STATFS_DEFINED_BY_SYS_VFS)
        fi
    fi
    
    if test "$ac_cv_header_sys_statfs_h" = "yes"
    
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    then
    
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        AC_CACHE_CHECK( "whether sys/statfs.h defines statfs",
    		    wine_cv_sys_statfs_has_statfs,
    	AC_TRY_COMPILE([
    	#include <sys/types.h>
    	#ifdef HAVE_SYS_PARAM_H
    	# include <sys/param.h>
    	#endif
    	#include <sys/statfs.h>
    	],[
    		struct statfs stfs;
    	],wine_cv_sys_statfs_has_statfs=yes,wine_cv_sys_statfs_has_statfs=no
    	)
        )
        if test "$wine_cv_sys_statfs_has_statfs" = "yes"
        then
          AC_DEFINE(STATFS_DEFINED_BY_SYS_STATFS)
        fi
    fi
    
    if test "$ac_cv_header_sys_mount_h" = "yes"
    then
        AC_CACHE_CHECK( "whether sys/mount.h defines statfs",
    		    wine_cv_sys_mount_has_statfs,
    	AC_TRY_COMPILE([
    	#include <sys/types.h>
    	#ifdef HAVE_SYS_PARAM_H
    	# include <sys/param.h>
    	#endif
    	#include <sys/mount.h>
    	],[
    		struct statfs stfs;
    	],wine_cv_sys_mount_has_statfs=yes,wine_cv_sys_mount_has_statfs=no
    	)
        )
        if test "$wine_cv_sys_mount_has_statfs" = "yes"
        then
          AC_DEFINE(STATFS_DEFINED_BY_SYS_MOUNT)
        fi
    
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    dnl **** FIXME: what about mixed cases, where we need two of them? ***
    
    
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    AC_CACHE_CHECK( "for statfs.f_bfree", wine_cv_statfs_bfree,
      [ if test "x$statfs_bfree" = "xno"
        then
            wine_cv_statfs_bfree=no
        else
        	AC_TRY_COMPILE([
    
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    	#include <sys/types.h>
    
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    	#ifdef HAVE_SYS_PARAM_H
    	# include <sys/param.h>
    	#endif
    
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    	#ifdef STATFS_DEFINED_BY_SYS_MOUNT
    
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    	# include <sys/mount.h>
    
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    	#else
    	# ifdef STATFS_DEFINED_BY_SYS_VFS
    	#  include <sys/vfs.h>
    	# else
    	#  ifdef STATFS_DEFINED_BY_SYS_STATFS
    	#   include <sys/statfs.h>
    	#  endif
    	# endif
    
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    	#endif
    	],[
    		struct statfs stfs;
    
    		stfs.f_bfree++;
    	],wine_cv_statfs_bfree=yes,wine_cv_statfs_bfree=no
    	)
        fi ] )
    if test "$wine_cv_statfs_bfree" = "yes"
    then
      AC_DEFINE(STATFS_HAS_BFREE)
    fi
    
    
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    AC_CACHE_CHECK( "for statfs.f_bavail", wine_cv_statfs_bavail,
      [ if test "x$statfs_bavail" = "xno"
        then
            wine_cv_statfs_bavail=no
        else
        	AC_TRY_COMPILE([
    	#include <sys/types.h>
    	#ifdef HAVE_SYS_PARAM_H
    	# include <sys/param.h>
    	#endif
    	#ifdef STATFS_DEFINED_BY_SYS_MOUNT
    	# include <sys/mount.h>
    	#else
    	# ifdef STATFS_DEFINED_BY_SYS_VFS
    	#  include <sys/vfs.h>
    	# else
    	#  ifdef STATFS_DEFINED_BY_SYS_STATFS
    	#   include <sys/statfs.h>
    	#  endif
    	# endif
    	#endif
    	],[
    		struct statfs stfs;
    
    		stfs.f_bavail++;
    	],wine_cv_statfs_bavail=yes,wine_cv_statfs_bavail=no
    	)
        fi ] )
    if test "$wine_cv_statfs_bavail" = "yes"
    then
      AC_DEFINE(STATFS_HAS_BAVAIL)
    fi
    
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    dnl *** check for file descriptor passing with msg_accrights
    
    AC_CACHE_CHECK("for msg_accrights in struct msghdr", ac_cv_c_msg_accrights,
     AC_TRY_COMPILE([#include <sys/types.h>
    #include <sys/socket.h>],[struct msghdr hdr; hdr.msg_accrights=0],
                    ac_cv_c_msg_accrights="yes", ac_cv_c_msg_accrights="no"))
    if test "$ac_cv_c_msg_accrights" = "yes"
    then
        AC_DEFINE(HAVE_MSGHDR_ACCRIGHTS)
    fi
    
    
    dnl *** Check for the sun_len member in struct sockaddr_un
    
    AC_CACHE_CHECK("for sun_len in struct sockaddr_un", ac_cv_c_sun_len,
     AC_TRY_COMPILE([#include <sys/types.h>
    #include <sys/socket.h>
    #include <sys/un.h>], [static struct sockaddr_un addr; addr.sun_len = 1],
                    ac_cv_c_sun_len="yes", ac_cv_c_sun_len="no"))
    if test "$ac_cv_c_sun_len" = "yes"
    then
        AC_DEFINE(HAVE_SOCKADDR_SUN_LEN)
    fi
    
    
    dnl *** check for the need to define __i386__
    
    AC_CACHE_CHECK("whether we need to define __i386__",ac_cv_cpp_def_i386,