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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>
    
    dnl Ported to autoconf 2.5x by bero@redhat.com
    
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    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(debug,
    [  --disable-debug         compile out all debugging messages],
    [if test "$enableval" = "no"; then DEBUG_MSGS="no"; fi])
    
    
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    [  --enable-opengl         force usage of OpenGL even if the latter is thread-safe via pthread],
    
    [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
    
        OPTIONS="$OPTIONS -DNO_DEBUG_MSGS"
    
    fi
    
    if test "$TRACE_MSGS" = "no" -o "$DEBUG_MSGS" = "no"
    then
    
        OPTIONS="$OPTIONS -DNO_TRACE_MSGS"
    
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    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
    
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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)
    
    AC_CHECK_PROG(DLLWRAP,dllwrap,dllwrap,false)
    
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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)
    
    
    if test "$CYGWIN" = "yes"
    then
        LDCOMBINE="ld -r --enable-stdcall-fixup"
    else
        LDCOMBINE="ld -r"
    fi
    AC_SUBST(LDCOMBINE)
    
    
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    dnl **** Check for some libraries ****
    
    
    dnl Check for -lm
    
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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_FUNCS(iswalnum,,AC_CHECK_LIB(w,iswalnum))
    
    AC_CHECK_FUNCS(gethostbyname,,AC_CHECK_LIB(nsl,gethostbyname))
    
    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,_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_FUNCS(dlopen,,
            [AC_CHECK_LIB(dl,dlopen,
                         [AC_DEFINE(HAVE_DLOPEN,1,[Define if you have dlopen])
                         LIBS="$LIBS -ldl"],
                         LIBEXT="a")]
     	)],
    
    JPEGLIB=""
    AC_SUBST(JPEGLIB)
    AC_CHECK_HEADERS(jpeglib.h,
        AC_CHECK_LIB(jpeg,jpeg_start_decompress,
        	AC_DEFINE(HAVE_LIBJPEG,1,[Define if you have libjpeg including devel headers])
    	JPEGLIB="-ljpeg"
        )
    )
    
    
    
    AC_SUBST(XFILES)
    XFILES=""
    
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    AC_SUBST(OPENGLFILES)
    OPENGLFILES=""
    
    AC_SUBST(GLU32FILES)
    
        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, 1, [Define if you have the Xpm library])
                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 "Install the following packages:"
    
    	echo "Red Hat < 7.1	:	xpm xpm-devel"
    	echo "Red Hat >= 7.1	:	XFree86-devel"
    
    	echo "Caldera OpenLinux	:	xpm xpm-devel xpm-devel-static"
    
    	echo "Debian/Corel Linux: 	xpm4g xpm4g-dev"
    
    	echo "Solaris 8         :       SFWxpm"
    
    	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 of the following tests require X11/Xlib.h
    
        AC_CHECK_HEADERS(X11/Xlib.h,
          [
    
            dnl *** Check for X keyboard extension
            AC_CHECK_HEADERS(X11/XKBlib.h,
                [ dnl *** If X11/XKBlib.h exists...
                  AC_CHECK_LIB(X11, XkbQueryExtension,
    
                  AC_DEFINE(HAVE_XKB, 1, [Define if you have the XKB extension]),,
    
                  $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
                ],
                AC_MSG_WARN([XKB extension not found!!])
            )
    
    
            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, 1, [Define if you have the X Shm extension]),,
    
                  $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
                ],
                AC_MSG_WARN([Xshm extension not found!!])
            )
    
    
            dnl *** Check for X shape extension
    
            AC_CHECK_HEADERS(X11/extensions/shape.h,
    
                [ dnl *** If X11/extensions/shape.h exists...
                  AC_CHECK_LIB(Xext,XShapeQueryExtension,
    
    	      AC_DEFINE(HAVE_LIBXSHAPE, 1, [Define if you have the X Shape extension]),,
    
    	      $X_LIBS -lXext -lX11 $X_EXTRA_LIBS)
    	    ],
    
    	    AC_MSG_WARN([XShape extension not 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, 1,
                                [Define if you have the Xxf86dga library version 2])
    
                      X_PRE_LIBS="$X_PRE_LIBS -lXxf86dga"
                   ],
                    [ dnl *** If not found, look for XF86DGAQueryExtension()
                      dnl *** instead (DGA 2.0 not found)...
                      AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension,
    
                        [ AC_DEFINE(HAVE_LIBXXF86DGA, 1,
                                    [Define if you have the Xxf86dga library version 1])
    
                          X_PRE_LIBS="$X_PRE_LIBS -lXxf86dga"
                        ],,
                        $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, 1, [Define if you have the Xxf86vm library])
    
                         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, 1, [Define if the X libraries support XVideo])
    
                         X_PRE_LIBS="$X_PRE_LIBS -lXv"
                      ],,
                      $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
                    )
                ],
                AC_MSG_WARN([XVideo extension not found !!])
            )
    
    
            dnl *** Check for XRender extension
            AC_CHECK_HEADERS(X11/extensions/Xrender.h,
                [ dnl *** If X11/extensions/Xrender.h exists...
                    AC_CHECK_LIB(Xrender, XRenderQueryExtension,
                      [ AC_DEFINE(HAVE_LIBXRENDER, 1, [Define if you have the XRender extension library])
                         X_PRE_LIBS="$X_PRE_LIBS -lXrender"
                      ],,
                      $X_LIBS -lXext -lX11 $X_EXTRA_LIBS
                    )
                ],
                AC_MSG_WARN([XRender 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
    
    	    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"
    			     ,,
    			     $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, 1, [Define if OpenGL is present on the system])
    
    			AC_CHECK_LIB(GL,glXGetProcAddressARB,
                                         AC_DEFINE(HAVE_GLX_GETPROCADDRESS, 1,
                                                   [Define if the OpenGL library supports the glXGetProcAddressARB call]),,
                                         $X_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS)
    
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    			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, 1,
                                                  [Define if the OpenGL headers define extension typedefs])
    
    	        dnl Check for GLU32 library.
    
    			     [X_PRE_LIBS="$X_PRE_LIBS -lGLU"
    			     GLU32FILES='$(GLU32FILES)']
    
    			     ,,
    			     $X_LIBS $X_PRE_LIBS -lXext -lX11 -lm $X_EXTRA_LIBS
    		)
    
    
        CPPFLAGS="$ac_save_CPPFLAGS"
    
        XFILES='$(XFILES)'
    
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    dnl **** Check which curses lib to use ***
    
    if test "$CURSES" = "yes"
    
        AC_CHECK_HEADERS(ncurses.h,
            AC_CHECK_LIB(ncurses,waddch),
    
            [AC_CHECK_HEADERS(curses.h,[AC_CHECK_LIB(curses,waddch)])])
    
    CUPSLIBS=""
    dnl **** Check for CUPS ****
    
    AC_CHECK_LIB(cups,cupsGetPPD,
    
    	[AC_CHECK_HEADER(cups/cups.h,
    	    [AC_DEFINE(HAVE_CUPS, 1, [Define if we have CUPS])
    	    CUPSLIBS="-lcups"],
                wine_cv_warn_cups_h=yes)]
    
    )
    AC_SUBST(CUPSLIBS)
    
    
    dnl **** Check for FreeType 2 ****
    
    AC_CHECK_LIB(freetype,FT_Init_FreeType,ft_lib=yes,ft_lib=no,$X_LIBS)
    
    if test "$ft_lib" = "no"
    then
        FREETYPELIBS=""
        FREETYPEINCL=""
        wine_cv_msg_freetype=no
    else
    
        AC_CHECK_PROG(ft_devel,freetype-config,freetype-config,no)
        if test "$ft_devel" = "no"
        then
            AC_CHECK_PROG(ft_devel2,freetype2-config,freetype2-config,no)
            if test "$ft_devel2" = "freetype2-config"
    	then
    		ft_devel=$ft_devel2
    	fi
        fi
    
        if test "$ft_devel" = "no"
        then
        	FREETYPELIBS=""
    	FREETYPEINCL=""
    	wine_cv_msg_freetype=yes
        else
    
        	AC_DEFINE(HAVE_FREETYPE, 1, [Define if FreeType 2 is installed])
    
    	FREETYPELIBS=`$ft_devel --libs`
    	FREETYPEINCL=`$ft_devel --cflags`
    
    	ac_save_CPPFLAGS="$CPPFLAGS"
    	CPPFLAGS="$FREETYPEINCL $CPPFLAGS"
    	AC_CHECK_HEADERS(freetype/freetype.h \
                             freetype/ftglyph.h \
                             freetype/tttables.h \
                             freetype/ftnames.h \
                             freetype/ftsnames.h \
    
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                             freetype/ftoutln.h \
                             freetype/internal/sfnt.h)
    
    	CPPFLAGS="$ac_save_CPPFLAGS"
    
    	wine_cv_msg_freetype=no
        fi
    fi
    AC_SUBST(FREETYPELIBS)
    AC_SUBST(FREETYPEINCL)
    
    
    dnl **** Check for parport (currently Linux only) ****
    
    AC_CACHE_CHECK([for parport header/ppdev.h], ac_cv_c_ppdev,
    
     AC_TRY_COMPILE(
       [#include <linux/ppdev.h>],
       [ioctl (1,PPCLAIM,0)],
       [ac_cv_c_ppdev="yes"],
       [ac_cv_c_ppdev="no"])
     )
    if test "$ac_cv_c_ppdev" = "yes"
    then
    
        AC_DEFINE(HAVE_PPDEV, 1, [Define if we can use ppdev.h for parallel port access])
    
    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, 1, [Define if IPX should use netipx/ipx.h from libc])
    
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    fi
    
     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, 1, [Define if IPX includes are taken from Linux kernel])
    
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      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],
    
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    	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, 1, [Define if you have the Open Sound system])
    
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    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, 1, [Define if you have the Open Sound system (MIDI interface)])
    
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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
    
    
    dnl **** Check for broken glibc mmap64 ****
    
    
    AC_CACHE_CHECK( [whether mmap64 works defined as mmap], ac_cv_mmap64_works,
    
    	AC_TRY_RUN([
    		#define _FILE_OFFSET_BITS 64
    		#include <stdio.h>
    		#include <unistd.h>
    		#include <fcntl.h>
    		#include <sys/mman.h>
    		#include <errno.h>
    
    		int main(int argc,char **argv) {
    			int fd = open("conftest.map",O_CREAT|O_RDWR,0600);
    			if (fd == -1) exit(1);
    
    			unlink("conftest.map");
    
    			write(fd,"test",4);
    
    			if ((-1 == mmap(0,4,PROT_READ|PROT_WRITE,MAP_SHARED,fd,0)) &&
    			    (errno == EINVAL)
    			) {
    				exit(1);
    			}
    			close(fd);
    			fprintf(stderr,"success!\n");
    			exit(0);
    		}
    
    	],
        ac_cv_mmap64_works="yes",
        ac_cv_mmap64_works="no",
        ac_cv_mmap64_works="no") )
    
    if test "$ac_cv_mmap64_works" = "yes"
    then
        AC_DEFINE(_FILE_OFFSET_BITS, 64, [Set this to 64 to enable 64-bit file support on Linux])
    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,
    
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                      AC_TRY_RUN([
    
    int	L[[4]] = {0,1,2,3};
    
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    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;
    
      for(i=0; i<4 - 1; i++) L[[i]] = L[[i + 1]];
      L[[i]] = 4;
      
      exit( Array[[1]] != -2 || L[[2]] != 3);
    
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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
    
    
      dnl Check for -mpreferred-stack-boundary
    
      AC_CACHE_CHECK([for gcc -mpreferred-stack-boundary=2 support],
    
                     ac_cv_c_gcc_stack_boundary,
      [saved_cflags=$CFLAGS
      CFLAGS="$CFLAGS -mpreferred-stack-boundary=2"
      AC_TRY_COMPILE(,[return 0],ac_cv_c_gcc_stack_boundary="yes",ac_cv_c_gcc_stack_boundary="no")
      CFLAGS=$saved_cflags
      ])
      if test "$ac_cv_c_gcc_stack_boundary" = "yes"
      then
        CFLAGS="$CFLAGS -mpreferred-stack-boundary=2"
      fi
    
    dnl **** Check if we need to place .type inside a .def directive ****
    
    
    AC_CACHE_CHECK([whether .type must sit inside a .def directive],
    
    	       ac_cv_c_type_in_def,
    [saved_libs=$LIBS
    LIBS="conftest_asm.s $LIBS"
    cat > conftest_asm.s <<EOF
    	.globl _ac_test
    	.def _ac_test; .scl 2; .type 32; .endef
    _ac_test:
    	.long 0
    EOF
    AC_TRY_LINK(,,ac_cv_c_type_in_def="yes",ac_cv_c_type_in_def="no")
    LIBS=$saved_libs])
    if test "$ac_cv_c_type_in_def" = "yes"
    then
    
      AC_DEFINE(NEED_TYPE_IN_DEF, 1, [Define if .type asm directive must be inside a .def directive])
    
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    dnl **** Check for underscore on external symbols ****
    
    
    AC_CACHE_CHECK([whether external symbols need an underscore prefix],
    
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                   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, 1,
                [Define if symbols declared in assembly code need an underscore prefix])
    
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    dnl **** Check for .string in assembler ****
    
    
    AC_CACHE_CHECK([whether assembler accepts .string],
    
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                   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, 1, [Define to use .string instead of .ascii])
    
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    dnl **** Check for working dll ****
    
    
    LDDLLFLAGS=""
    
    if test "$LIBEXT" = "so"
    
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    then
    
      AC_CACHE_CHECK([whether we can build a GNU style ELF dll],
    
                     ac_cv_c_dll_gnuelf,
    
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      [saved_cflags=$CFLAGS
    
      CFLAGS="$CFLAGS -fPIC -shared -Wl,-soname,conftest.so.1.0,-Bsymbolic"
    
      AC_TRY_LINK(,[return 1],ac_cv_c_dll_gnuelf="yes",ac_cv_c_dll_gnuelf="no")
    
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      CFLAGS=$saved_cflags
      ])
    
      if test "$ac_cv_c_dll_gnuelf" = "yes"
    
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      then
    
        LDSHARED="\$(CC) -shared \$(SONAME:%=-Wl,-soname,%)"
    
        LDDLLFLAGS="-Wl,-Bsymbolic"
    
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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,-B,symbolic"
    
        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 \$(SONAME:%=-Wl,-h,%)"
    
          LDDLLFLAGS="-Wl,-B,symbolic"
    
      if test "$ac_cv_c_dll_gnuelf" = "no" -a "$ac_cv_c_dll_unixware" = "no"
    
        LIBEXT="a"
        if test "$DLLWRAP" = "dllwrap"; then
          dnl FIXME - check whether dllwrap works correctly...
          if test "$CYGWIN" = "yes"; then
            echo "*** use dllwrap for building shared library."
            LIBEXT="dll"
          fi
        fi
    
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      fi
    fi
    
    if test "$LIBEXT" = "a"; then
      echo "*** It is currently not possible to build WINE without shared"
      echo "*** library (.so) support to allow transparent switch between .so"
      echo "*** and .dll files."
      echo "*** If you are using Linux, you will need a newer binutils."
      exit 1
    fi
    
    
    DLLFLAGS=""
    
    if test "$LIBEXT" = "so"; then
        DLLFLAGS="-fPIC"
    
        LDPATH="LD_LIBRARY_PATH=\"\$(TOPOBJDIR)/unicode:\$\$LD_LIBRARY_PATH\""
    elif test "$LIBEXT" = "dll"; then
        #DLLFLAGS="-fPIC" # -fPIC doesn't work(at least in cygwin-b20) - FIXME
        LDPATH="PATH=\"\$(TOPOBJDIR)/unicode:\$\$PATH\""
    
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    AC_SUBST(DLLFLAGS)
    
    AC_SUBST(LDDLLFLAGS)
    
    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).
    
    
    AC_DEFUN([WINE_CHECK_ERRNO],
    
    [
      AC_CACHE_CHECK(for reentrant libc: $1, wine_cv_libc_r_$1,
    
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      [AC_TRY_RUN([int myerrno = 0;
    char buf[256];
    
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    main(){connect(0,buf,255); exit(!myerrno);}],
    
      wine_cv_libc_r_$1=yes, wine_cv_libc_r_$1=no,
      wine_cv_libc_r_$1=yes )
    
    if test "$wine_cv_libc_r_$1" = "yes"
    
    
    wine_cv_libc_reentrant=no 
    dnl Linux style errno location
    WINE_CHECK_ERRNO(__errno_location)
    dnl FreeBSD style errno location
    WINE_CHECK_ERRNO(__error)
    
    dnl Solaris style errno location
    
    dnl UnixWare style errno location
    
    WINE_CHECK_ERRNO(__thr_errno)
    
    dnl NetBSD style errno location
    WINE_CHECK_ERRNO(__errno)
    
    
    if test "$wine_cv_libc_reentrant" != "no" 
    
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    then
    
      AC_DEFINE_UNQUOTED(ERRNO_LOCATION,$wine_cv_libc_reentrant,
    	             [Define to the name of the function returning errno for reentrant libc])
    
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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"
    
    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, 1,
                [Define if X libraries are not reentrant (compiled without -D_REENTRANT)])
    
    dnl **** Check for functions ****
    
    
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    AC_FUNC_ALLOCA()
    
    	ftruncate64 \
    
    	getnetbyaddr \
    	getnetbyname \
    
    	getprotobyname \
    	getprotobynumber \
    
    	getrlimit \
    
    	getservbyport \
    	getsockopt \
    	inet_network \
    
    	mmap \
    
    	tcgetattr \
    	timegm \
    	usleep \
    	vfscanf \
    	wait4 \
    	waitpid \
    )
    
    dnl **** Check for header files ****
    
    AC_CHECK_HEADERS(\
    
    	arpa/nameser.h \
    	elf.h \
    	float.h \
    
    	linux/ucdrom.h \
    	net/if.h \
    
    	netdb.h \
    
    	netinet/in_systm.h \
    	netinet/ip.h \
    
    	sys/file.h \
    	sys/filio.h \
    
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    	sys/link.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 \
    
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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 linux/input.h is for real],
    
    	wine_cv_linux_input_h,
    	AC_TRY_COMPILE([
    	    #include <linux/input.h>
    	] , [
    	    int foo = EVIOCGBIT(EV_ABS,42);
    	    int bar = BTN_PINKIE;
    	    int fortytwo = 42;
    	],
    	wine_cv_linux_input_h=yes,
    	wine_cv_linux_input_h=no,
    	no
    	)
        )
        if test "$wine_cv_linux_input_h" = "yes"
        then
    
            AC_DEFINE(HAVE_CORRECT_LINUXINPUT_H, 1,
                      [Define if we have linux/input.h AND it contains the INPUT event API])
    
    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, 1,
                    [Define if Linux-style gethostbyname_r and gethostbyaddr_r are available])
    
    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"
    
          AC_DEFINE(HAVE_LINUX_22_JOYSTICK_API, 1,
                    [Define if <linux/joystick.h> defines the Linux 2.2 joystick API])
    
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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],
    
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    		    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