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diff --git a/Build/source/libs/gd/libgd-src/src/gdfx.h b/Build/source/libs/gd/libgd-src/src/gdfx.h
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+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef GDFX_H
+#define GDFX_H 1
+
+/* im MUST be square, but can have any size. Returns a new image
+ of width and height radius * 2, in which the X axis of
+ the original has been remapped to theta (angle) and the Y axis
+ of the original has been remapped to rho (distance from center).
+ This is known as a "polar coordinate transform." */
+
+BGD_DECLARE(gdImagePtr) gdImageSquareToCircle(gdImagePtr im, int radius);
+
+/* Draws the text 'top' and 'bottom' on 'im', curved along the
+ edge of a circle of radius 'radius', with its
+ center at 'cx' and 'cy'. 'top' is written clockwise
+ along the top; 'bottom' is written counterclockwise
+ along the bottom. 'textRadius' determines the 'height'
+ of each character; if 'textRadius' is 1/2 of 'radius',
+ characters extend halfway from the edge to the center.
+ 'fillPortion' varies from 0 to 1.0, with useful values
+ from about 0.4 to 0.9, and determines how much of the
+ 180 degrees of arc assigned to each section of text
+ is actually occupied by text; 0.9 looks better than
+ 1.0 which is rather crowded. 'font' is a freetype
+ font; see gdImageStringFT. 'points' is passed to the
+ freetype engine and has an effect on hinting; although
+ the size of the text is determined by radius, textRadius,
+ and fillPortion, you should pass a point size that
+ 'hints' appropriately -- if you know the text will be
+ large, pass a large point size such as 24.0 to get the
+ best results. 'fgcolor' can be any color, and may have
+ an alpha component, do blending, etc.
+
+ Returns 0 on success, or an error string. */
+
+BGD_DECLARE(char *) gdImageStringFTCircle(
+ gdImagePtr im,
+ int cx,
+ int cy,
+ double radius,
+ double textRadius,
+ double fillPortion,
+ char *font,
+ double points,
+ char *top,
+ char *bottom,
+ int fgcolor);
+
+/* 2.0.16:
+ * Sharpen function added on 2003-11-19
+ * by Paul Troughton (paul<dot>troughton<at>ieee<dot>org)
+ * Simple 3x3 convolution kernel
+ * Makes use of seperability
+ * Faster, but less flexible, than full-blown unsharp masking
+ * pct is sharpening percentage, and can be greater than 100
+ * Silently does nothing to non-truecolor images
+ * Silently does nothing for pct<0, as not a useful blurring function
+ * Leaves transparency/alpha-channel untouched
+ */
+
+BGD_DECLARE(void) gdImageSharpen (gdImagePtr im, int pct);
+
+#endif /* GDFX_H */
+
+
+#ifdef __cplusplus
+}
+#endif