# sha256.m4 # serial 8 dnl Copyright (C) 2005, 2008-2024 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_SHA256], [ dnl Prerequisites of lib/sha256.c. AC_REQUIRE([gl_BIGENDIAN]) dnl Determine HAVE_OPENSSL_SHA256 and LIB_CRYPTO gl_CRYPTO_CHECK([SHA256]) ])