## libs/libpng/ac/libpng.ac: configure.ac fragment for the TeX Live subdirectory libs/libpng/
dnl
dnl Copyright (C) 2009 Peter Breitenlohner <tex-live@tug.org>
dnl You may freely use, modify and/or distribute this file.
dnl
## basic check of system libpng
KPSE_TRY_LIB([libpng],
             [#include <png.h>],
             [png_structp png; png_voidp io; png_rw_ptr fn;
png_set_read_fn(png, io, fn);])