fix lilv build under Haiku

c++/carla-lilv/lilv-0.14.2/src/util.c

@@ -269,10 +269,10 @@ lilv_copy_file(const char* src, const char* dst)
 		return 2;
 	}
 
-	static const size_t PAGE_SIZE = 4096;
-	char*               page      = (char*)malloc(PAGE_SIZE);
+	static const size_t page_size = 4096;
+	char*               page      = (char*)malloc(page_size);
 	size_t              n_read    = 0;
-	while ((n_read = fread(page, 1, PAGE_SIZE, in)) > 0) {
+	while ((n_read = fread(page, 1, page_size, in)) > 0) {
 		if (fwrite(page, 1, n_read, out) != n_read) {
 			LILV_ERRORF("write to %s failed (%s)\n", dst, strerror(errno));
 			break;