code.delx.au - gnu-emacs/blob - m4/sha256.m4

   1 # sha256.m4 serial 8
   2 dnl Copyright (C) 2005, 2008-2016 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 AC_DEFUN([gl_SHA256],
   8 [
   9   dnl Prerequisites of lib/sha256.c.
  10   AC_REQUIRE([gl_BIGENDIAN])
  11
  12   dnl Determine HAVE_OPENSSL_SHA256 and LIB_CRYPTO
  13   gl_CRYPTO_CHECK([SHA256])
  14 ])