$OpenBSD$
fix with png 1.4
--- sources/darkplaces/image_png.c.orig	Thu Nov  3 19:44:44 2011
+++ sources/darkplaces/image_png.c	Thu Nov  3 19:46:48 2011
@@ -36,7 +36,7 @@ static void*			(*qpng_create_read_struct)	(const char*
 static void*			(*qpng_create_info_struct)	(void*);
 static void				(*qpng_read_info)			(void*, void*);
 static void				(*qpng_set_expand)			(void*);
-static void				(*qpng_set_gray_1_2_4_to_8)	(void*);
+static void				(*qpng_set_expand_gray_1_2_4_to_8)	(void*);
 static void				(*qpng_set_palette_to_rgb)	(void*);
 static void				(*qpng_set_tRNS_to_alpha)	(void*);
 static void				(*qpng_set_gray_to_rgb)		(void*);
@@ -61,7 +61,7 @@ static dllfunction_t pngfuncs[] =
 	{"png_create_info_struct",	(void **) &qpng_create_info_struct},
 	{"png_read_info",			(void **) &qpng_read_info},
 	{"png_set_expand",			(void **) &qpng_set_expand},
-	{"png_set_gray_1_2_4_to_8",	(void **) &qpng_set_gray_1_2_4_to_8},
+	{"png_set_expand_gray_1_2_4_to_8",	(void **) &qpng_set_expand_gray_1_2_4_to_8},
 	{"png_set_palette_to_rgb",	(void **) &qpng_set_palette_to_rgb},
 	{"png_set_tRNS_to_alpha",	(void **) &qpng_set_tRNS_to_alpha},
 	{"png_set_gray_to_rgb",		(void **) &qpng_set_gray_to_rgb},
@@ -311,7 +311,7 @@ unsigned char *PNG_LoadImage_BGRA (const unsigned char
 	{
 		qpng_set_gray_to_rgb(png);
 		if (my_png.BitDepth < 8)
-			qpng_set_gray_1_2_4_to_8(png);
+			qpng_set_expand_gray_1_2_4_to_8(png);
 	}
 
 	if (qpng_get_valid(png, pnginfo, PNG_INFO_tRNS))