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diff -rupNb opengltk-1.5.6-orig/Togl2.0/togl.c opengltk-1.5.6/Togl2.0/togl.c
--- opengltk-1.5.6-orig/Togl2.0/togl.c	2009-05-14 21:43:34.000000000 +0100
+++ opengltk-1.5.6/Togl2.0/togl.c	2014-02-01 20:50:21.172391074 +0000
@@ -1,3 +1,5 @@
+#define HAVE_UNISTD_H
+#define STDC_HEADERS
 /* $Id: togl.c,v 1.2 2009/05/14 20:43:34 vareille Exp $ */
 
 /* vi:set sw=4: */
diff -rupNb opengltk-1.5.6-orig/include/tcltk84/tk/generic/tkFont.h opengltk-1.5.6/include/tcltk84/tk/generic/tkFont.h
--- opengltk-1.5.6-orig/include/tcltk84/tk/generic/tkFont.h	1970-01-01 01:00:00.000000000 +0100
+++ opengltk-1.5.6/include/tcltk84/tk/generic/tkFont.h	2014-02-01 20:57:52.138795907 +0000
@@ -0,0 +1,226 @@
+/*
+ * tkFont.h --
+ *
+ *	Declarations for interfaces between the generic and platform-
+ *	specific parts of the font package.  This information is not
+ *	visible outside of the font package.
+ *
+ * Copyright (c) 1996-1997 Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * RCS: @(#) $Id: tkFont.h,v 1.1 2009/06/08 23:29:04 vareille Exp $
+ */
+
+#ifndef _TKFONT
+#define _TKFONT
+
+#ifdef BUILD_tk
+# undef TCL_STORAGE_CLASS
+# define TCL_STORAGE_CLASS DLLEXPORT
+#endif
+
+/*
+ * The following structure keeps track of the attributes of a font.  It can
+ * be used to keep track of either the desired attributes or the actual
+ * attributes gotten when the font was instantiated.
+ */
+
+typedef struct TkFontAttributes {
+    Tk_Uid family;		/* Font family, or NULL to represent
+				 * plaform-specific default system font. */
+    int size;			/* Pointsize of font, 0 for default size, or
+				 * negative number meaning pixel size. */
+    int weight;			/* Weight flag; see below for def'n. */
+    int slant;			/* Slant flag; see below for def'n. */
+    int underline;		/* Non-zero for underline font. */
+    int overstrike;		/* Non-zero for overstrike font. */
+} TkFontAttributes;
+
+/*
+ * Possible values for the "weight" field in a TkFontAttributes structure.
+ * Weight is a subjective term and depends on what the company that created
+ * the font considers bold.
+ */
+
+#define TK_FW_NORMAL	0
+#define TK_FW_BOLD	1
+
+#define TK_FW_UNKNOWN	-1	/* Unknown weight.  This value is used for
+				 * error checking and is never actually stored
+				 * in the weight field. */
+
+/*
+ * Possible values for the "slant" field in a TkFontAttributes structure.
+ */
+
+#define TK_FS_ROMAN	0	
+#define TK_FS_ITALIC	1
+#define TK_FS_OBLIQUE	2	/* This value is only used when parsing X
+				 * font names to determine the closest
+				 * match.  It is only stored in the
+				 * XLFDAttributes structure, never in the
+				 * slant field of the TkFontAttributes. */
+
+#define TK_FS_UNKNOWN	-1	/* Unknown slant.  This value is used for
+				 * error checking and is never actually stored
+				 * in the slant field. */
+
+/*
+ * The following structure keeps track of the metrics for an instantiated
+ * font.  The metrics are the physical properties of the font itself.
+ */
+
+typedef struct TkFontMetrics {
+    int	ascent;			/* From baseline to top of font. */
+    int	descent;		/* From baseline to bottom of font. */
+    int maxWidth;		/* Width of widest character in font. */
+    int fixed;			/* Non-zero if this is a fixed-width font,
+				 * 0 otherwise. */
+} TkFontMetrics;
+
+/*
+ * The following structure is used to keep track of the generic information
+ * about a font.  Each platform-specific font is represented by a structure
+ * with the following structure at its beginning, plus any platform-
+ * specific stuff after that.
+ */
+
+typedef struct TkFont {
+    /*
+     * Fields used and maintained exclusively by generic code.
+     */
+
+    int resourceRefCount;	/* Number of active uses of this font (each
+				 * active use corresponds to a call to
+				 * Tk_AllocFontFromTable or Tk_GetFont).
+				 * If this count is 0, then this TkFont
+				 * structure is no longer valid and it isn't
+				 * present in a hash table: it is being
+				 * kept around only because there are objects
+				 * referring to it.  The structure is freed
+				 * when resourceRefCount and objRefCount
+				 * are both 0. */
+    int objRefCount;		/* The number of Tcl objects that reference
+				 * this structure. */
+    Tcl_HashEntry *cacheHashPtr;/* Entry in font cache for this structure,
+				 * used when deleting it. */
+    Tcl_HashEntry *namedHashPtr;/* Pointer to hash table entry that
+				 * corresponds to the named font that the
+				 * tkfont was based on, or NULL if the tkfont
+				 * was not based on a named font. */
+    Screen *screen;		/* The screen where this font is valid. */
+    int tabWidth;		/* Width of tabs in this font (pixels). */
+    int	underlinePos;		/* Offset from baseline to origin of
+				 * underline bar (used for drawing underlines
+				 * on a non-underlined font). */
+    int underlineHeight;	/* Height of underline bar (used for drawing
+				 * underlines on a non-underlined font). */
+
+    /*
+     * Fields used in the generic code that are filled in by
+     * platform-specific code.
+     */
+
+    Font fid;			/* For backwards compatibility with XGCValues
+				 * structures.  Remove when TkGCValues is
+				 * implemented.  */
+    TkFontAttributes fa;	/* Actual font attributes obtained when the
+				 * the font was created, as opposed to the
+				 * desired attributes passed in to
+				 * TkpGetFontFromAttributes().  The desired
+				 * metrics can be determined from the string
+				 * that was used to create this font. */
+    TkFontMetrics fm;		/* Font metrics determined when font was
+				 * created. */
+    struct TkFont *nextPtr;	/* Points to the next TkFont structure with
+				 * the same name.  All fonts with the
+				 * same name (but different displays) are
+				 * chained together off a single entry in
+				 * a hash table. */
+} TkFont;
+
+/*
+ * The following structure is used to return attributes when parsing an
+ * XLFD.  The extra information is of interest to the Unix-specific code
+ * when attempting to find the closest matching font.
+ */
+
+typedef struct TkXLFDAttributes {
+    Tk_Uid foundry;		/* The foundry of the font. */
+    int slant;			/* The tristate value for the slant, which
+				 * is significant under X. */
+    int setwidth;		/* The proportionate width, see below for
+				 * definition. */
+    Tk_Uid charset;		/* The actual charset string. */
+} TkXLFDAttributes;
+
+/*
+ * Possible values for the "setwidth" field in a TkXLFDAttributes structure.
+ * The setwidth is whether characters are considered wider or narrower than
+ * normal.
+ */
+
+#define TK_SW_NORMAL	0
+#define TK_SW_CONDENSE	1
+#define TK_SW_EXPAND	2
+#define TK_SW_UNKNOWN	3	/* Unknown setwidth.  This value may be
+				 * stored in the setwidth field. */
+
+/*
+ * The following defines specify the meaning of the fields in a fully
+ * qualified XLFD.
+ */
+
+#define XLFD_FOUNDRY	    0
+#define XLFD_FAMILY	    1
+#define XLFD_WEIGHT	    2
+#define XLFD_SLANT	    3
+#define XLFD_SETWIDTH	    4
+#define XLFD_ADD_STYLE	    5
+#define XLFD_PIXEL_SIZE	    6
+#define XLFD_POINT_SIZE	    7
+#define XLFD_RESOLUTION_X   8
+#define XLFD_RESOLUTION_Y   9
+#define XLFD_SPACING	    10
+#define XLFD_AVERAGE_WIDTH  11
+#define XLFD_CHARSET	    12
+#define XLFD_NUMFIELDS	    13	/* Number of fields in XLFD. */
+
+/*
+ * Low-level API exported by generic code to platform-specific code.
+ */
+
+#define TkInitFontAttributes(fa)   memset((fa), 0, sizeof(TkFontAttributes));
+#define TkInitXLFDAttributes(xa)   memset((xa), 0, sizeof(TkXLFDAttributes));
+
+EXTERN int		TkFontParseXLFD _ANSI_ARGS_((CONST char *string,
+			    TkFontAttributes *faPtr, TkXLFDAttributes *xaPtr));
+EXTERN char **		TkFontGetAliasList _ANSI_ARGS_((CONST char *faceName));
+EXTERN char ***		TkFontGetFallbacks _ANSI_ARGS_((void));
+EXTERN int		TkFontGetPixels _ANSI_ARGS_((Tk_Window tkwin, 
+			    int size));
+EXTERN int		TkFontGetPoints _ANSI_ARGS_((Tk_Window tkwin, 
+			    int size));
+EXTERN char **		TkFontGetGlobalClass _ANSI_ARGS_((void));
+EXTERN char **		TkFontGetSymbolClass _ANSI_ARGS_((void));
+
+/*
+ * Low-level API exported by platform-specific code to generic code. 
+ */
+
+EXTERN void		TkpDeleteFont _ANSI_ARGS_((TkFont *tkFontPtr));
+EXTERN void		TkpFontPkgInit _ANSI_ARGS_((TkMainInfo *mainPtr));
+EXTERN TkFont *		TkpGetFontFromAttributes _ANSI_ARGS_((
+			    TkFont *tkFontPtr, Tk_Window tkwin,
+			    CONST TkFontAttributes *faPtr));
+EXTERN void		TkpGetFontFamilies _ANSI_ARGS_((Tcl_Interp *interp,
+			    Tk_Window tkwin));
+EXTERN TkFont *		TkpGetNativeFont _ANSI_ARGS_((Tk_Window tkwin,
+			    CONST char *name));
+
+# undef TCL_STORAGE_CLASS
+# define TCL_STORAGE_CLASS DLLIMPORT
+
+#endif	/* _TKFONT */
diff -rupNb opengltk-1.5.6-orig/setup.py opengltk-1.5.6/setup.py
--- opengltk-1.5.6-orig/setup.py	2012-11-08 22:55:20.000000000 +0000
+++ opengltk-1.5.6/setup.py	2014-02-01 20:59:59.720304555 +0000
@@ -142,7 +142,7 @@ elif os.name == 'nt': #for Windows
 ###################################################################
 
 if tcltk_ver == '8.4':
-    tcl_libs = {'posix':[ "tclstub8.4", "tkstub8.4"],
+    tcl_libs = {'posix':[],
             'nt':[ "tclstub84", "tkstub84"]}.get(os.name,[])
 else:
     tcl_libs = {'posix':[ "tclstub8.5", "tkstub8.5"],
@@ -295,8 +295,8 @@ if os.name == 'nt':
     Togl ='Togl'
     toglversion = '1.7'
 else:
-    Togl = "Togl2.1"
-    toglversion = '2.1'
+    Togl = "Togl2.0"
+    toglversion = '2.0'
 #elif sys.platform == 'darwin':
 #    Togl ='Togl2.0'
 #else: