diff -ur php-4.2.3.orig/ext/gd/gd.c php-4.2.3/ext/gd/gd.c
--- php-4.2.3.orig/ext/gd/gd.c	Tue Sep  3 15:09:29 2002
+++ php-4.2.3/ext/gd/gd.c	Sun Jan  2 17:42:49 2005
@@ -1011,10 +1011,10 @@
 		io_ctx = gdNewDynamicCtx (8, data);
 		if (io_ctx) {
 			if (getmbi(gdGetC, io_ctx) == 0 && skipheader(gdGetC, io_ctx) == 0 ) {
-				io_ctx->free(io_ctx);
+				io_ctx->gd_free(io_ctx);
 				return PHP_GDIMG_TYPE_WBM;
 			} else
-				io_ctx->free(io_ctx);
+				io_ctx->gd_free(io_ctx);
 		}
 	}
 #endif
@@ -1206,7 +1206,7 @@
 		} else {
 			im = (*ioctx_func_p)(io_ctx);
 		}
-		io_ctx->free(io_ctx);
+		io_ctx->gd_free(io_ctx);
 #endif
 	} else {
 		if (image_type == PHP_GDIMG_TYPE_GD2PART) {
diff -ur php-4.2.3.orig/ext/gd/gd_ctx.c php-4.2.3/ext/gd/gd_ctx.c
--- php-4.2.3.orig/ext/gd/gd_ctx.c	Sun Aug  5 18:21:29 2001
+++ php-4.2.3/ext/gd/gd_ctx.c	Sun Jan  2 17:43:54 2005
@@ -67,7 +67,7 @@
 		ctx = emalloc(sizeof(gdIOCtx));
 		ctx->putC = _php_image_output_putc;
 		ctx->putBuf = _php_image_output_putbuf;
-		ctx->free = _php_image_output_ctxfree;
+		ctx->gd_free = _php_image_output_ctxfree;
 
 #if APACHE && defined(CHARSET_EBCDIC)
 		/* XXX this is unlikely to work any more thies@thieso.net */
@@ -95,7 +95,7 @@
 			break;
 	}
 	
-	ctx->free(ctx);
+	ctx->gd_free(ctx);
 
 	if(fp) {
 		fflush(fp);