configure.ac

   1 dnl Process this file with autoconf 2.52+ to produce a configure script.
   2 dnl
   3 dnl Copyright (C) 2001 Philipp Rumpf
   4 dnl Copyright (C) 2004 Henrique de Moraes Holschuh <hmh@debian.org>
   5 dnl
   6 dnl This program is free software; you can redistribute it and/or modify
   7 dnl it under the terms of the GNU General Public License as published by
   8 dnl the Free Software Foundation; either version 2 of the License, or
   9 dnl (at your option) any later version.
  10 dnl
  11 dnl This program is distributed in the hope that it will be useful,
  12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 dnl GNU General Public License for more details.
  15 dnl
  16 dnl You should have received a copy of the GNU General Public License
  17 dnl along with this program; if not, write to the Free Software
  18 dnl Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335  USA
  19
  20 AC_INIT(rng-tools, 4, [Jeff Garzik <jgarzik@pobox.com>])
  21 AC_PREREQ(2.52)
  22 AC_CONFIG_SRCDIR([rngd.c])
  23 AM_INIT_AUTOMAKE([gnu])
  24 AC_CONFIG_HEADERS([rng-tools-config.h])
  25
  26 dnl Parse options
  27
  28 AC_ARG_WITH([libgcrypt],
  29         AS_HELP_STRING([--without-libgcrypt],
  30                 [Disable libgcrypt support. Systems that support RDRAND but not AES-NI will require libgcrypt in order to use RDRAND as an entropy source. (Default: --with-libgcrypt)]),
  31         [],
  32         [with_libgcrypt=check]
  33 )
  34
  35 dnl Make sure anyone changing configure.ac/Makefile.am has a clue
  36 AM_MAINTAINER_MODE
  37
  38 dnl Checks for programs
  39 AC_PROG_CC
  40 AC_PROG_RANLIB
  41 AC_PROG_GCC_TRADITIONAL
  42
  43 dnl Checks for header files.
  44 dnl AC_HEADER_STDC
  45 dnl AC_CHECK_HEADERS(sys/ioctl.h unistd.h)
  46
  47 dnl Checks for typedefs, structures, and compiler characteristics.
  48 dnl AC_TYPE_SIZE_T
  49 dnl AC_TYPE_PID_T
  50
  51 dnl -----------------------------
  52 dnl Checks for required libraries
  53 dnl -----------------------------
  54
  55 dnl -------------------------------------
  56 dnl Checks for optional library functions
  57 dnl -------------------------------------
  58
  59 dnl -------------------------------------
  60 dnl Check for libgcrypt support
  61 dnl -------------------------------------
  62
  63 AS_IF(
  64         [test "x$with_libgcrypt" != "xno"],
  65         [
  66                 AC_CHECK_HEADER([gcrypt.h],
  67                         AC_CHECK_LIB(
  68                                 [gcrypt],
  69                                 [gcry_check_version], ,
  70                                 [
  71                                         if test "x$with_libgcrypt" != "xcheck"; then
  72                                                 AC_MSG_FAILURE([libgcrypt not found]); else
  73                                                 AC_MSG_NOTICE([libgcrypt support disabled])
  74                                         fi
  75                                 ]
  76                         ),
  77                         [if test "x$with_libgcrypt" != "xcheck"; then
  78                                 AC_MSG_FAILURE([libgcrypt headers not found]); else
  79                                 AC_MSG_NOTICE([libgcrypt support disabled])
  80                         fi]
  81                 )
  82         ]
  83 )
  84
  85 dnl -----------------
  86 dnl Configure options
  87 dnl -----------------
  88
  89 AM_PROG_AS
  90
  91 dnl --------------------------
  92 dnl autoconf output generation
  93 dnl --------------------------
  94
  95 AC_CONFIG_FILES([Makefile contrib/Makefile rngd.8 rngtest.1])
  96 AC_OUTPUT