# gc-hmac-sha256.m4 serial 3 dnl Copyright (C) 2005, 2007, 2009-2020 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_GC_HMAC_SHA256], [ AC_REQUIRE([gl_GC]) if test "$ac_cv_libgcrypt" != yes; then gl_SHA256 gl_MEMXOR fi ])