-# gc-random.m4 serial 1
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# gc-random.m4 serial 4
+dnl Copyright (C) 2005-2010 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.
# Devices with randomness.
# FIXME: Are these the best defaults?
- case "${target}" in
- *-openbsd*)
+ AC_REQUIRE([AC_CANONICAL_HOST])dnl
+
+ case "$host_os" in
+ *openbsd*)
NAME_OF_RANDOM_DEVICE="/dev/srandom"
NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/prandom"
NAME_OF_NONCE_DEVICE="/dev/urandom"
;;
- *-netbsd*)
+ *netbsd*)
NAME_OF_RANDOM_DEVICE="/dev/srandom"
NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/urandom"
NAME_OF_NONCE_DEVICE="/dev/urandom"
;;
- *-solaris* | *-irix* | *-dec-osf* )
+ *solaris* | *irix* | *dec-osf* )
NAME_OF_RANDOM_DEVICE="/dev/random"
NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/random"
NAME_OF_NONCE_DEVICE="/dev/random"
esac
AC_MSG_CHECKING([device with (strong) random data...])
- AC_ARG_ENABLE(random-device,
- AC_HELP_STRING([--enable-random-device],
- [device with (strong) randomness (for Nettle)]),
- test "$enableval" != "no" && NAME_OF_RANDOM_DEVICE=$enableval)
- AC_MSG_RESULT($NAME_OF_RANDOM_DEVICE)
+ AC_ARG_ENABLE([random-device],
+ AS_HELP_STRING([--enable-random-device],
+ [device with (strong) randomness (for Nettle)]),
+ NAME_OF_RANDOM_DEVICE=$enableval)
+ AC_MSG_RESULT([$NAME_OF_RANDOM_DEVICE])
AC_MSG_CHECKING([device with pseudo random data...])
- AC_ARG_ENABLE(pseudo-random-device,
- AC_HELP_STRING([--enable-pseudo-random-device],
- [device with pseudo randomness (for Nettle)]),
- test "$enableval" != "no" && NAME_OF_PSEUDO_RANDOM_DEVICE=$enableval)
- AC_MSG_RESULT($NAME_OF_PSEUDO_RANDOM_DEVICE)
+ AC_ARG_ENABLE([pseudo-random-device],
+ AS_HELP_STRING([--enable-pseudo-random-device],
+ [device with pseudo randomness (for Nettle)]),
+ NAME_OF_PSEUDO_RANDOM_DEVICE=$enableval)
+ AC_MSG_RESULT([$NAME_OF_PSEUDO_RANDOM_DEVICE])
AC_MSG_CHECKING([device with unpredictable data for nonces...])
- AC_ARG_ENABLE(nonce-device,
- AC_HELP_STRING([--enable-nonce-device],
- [device with unpredictable nonces (for Nettle)]),
- test "$enableval" != "no" && NAME_OF_NONCE_DEVICE=$enableval)
- AC_MSG_RESULT($NAME_OF_NONCE_DEVICE)
+ AC_ARG_ENABLE([nonce-device],
+ AS_HELP_STRING([--enable-nonce-device],
+ [device with unpredictable nonces (for Nettle)]),
+ NAME_OF_NONCE_DEVICE=$enableval)
+ AC_MSG_RESULT([$NAME_OF_NONCE_DEVICE])
if test "$cross_compiling" != yes; then
- AC_CHECK_FILE($NAME_OF_RANDOM_DEVICE,,
- AC_MSG_WARN([[device for (strong) random data `$NAME_OF_RANDOM_DEVICE' does not exist]]))
- AC_CHECK_FILE($NAME_OF_PSEUDO_RANDOM_DEVICE,,
- AC_MSG_WARN([[device for pseudo-random data `$NAME_OF_PSEUDO_RANDOM_DEVICE' does not exist]]))
- AC_CHECK_FILE($NAME_OF_NONCE_DEVICE,,
- AC_MSG_WARN([[device for unpredictable nonces `$NAME_OF_NONCE_DEVICE' does not exist]]))
+ if test "$NAME_OF_RANDOM_DEVICE" != "no"; then
+ AC_CHECK_FILE([$NAME_OF_RANDOM_DEVICE],,
+ AC_MSG_WARN([[Device `$NAME_OF_RANDOM_DEVICE' does not exist, consider to use --enable-random-device]]))
+ fi
+ if test "$NAME_OF_PSEUDO_RANDOM_DEVICE" != "no"; then
+ AC_CHECK_FILE([$NAME_OF_PSEUDO_RANDOM_DEVICE],,
+ AC_MSG_WARN([[Device `$NAME_OF_PSEUDO_RANDOM_DEVICE' does not exist, consider to use --enable-pseudo-random-device]]))
+ fi
+ if test "$NAME_OF_NONCE_DEVICE" != "no"; then
+ AC_CHECK_FILE([$NAME_OF_NONCE_DEVICE],,
+ AC_MSG_WARN([[Device `$NAME_OF_NONCE_DEVICE' does not exist, consider to use --enable-nonce-device]]))
+ fi
else
- AC_MSG_NOTICE([[Cross compiling, assuming random devices exists on the target host...]])
+ AC_MSG_NOTICE([[Cross compiling, assuming random devices exists on the target host...]])
fi
# FIXME?: Open+read 42 bytes+close twice and compare data. Should differ.
- AC_DEFINE_UNQUOTED(NAME_OF_RANDOM_DEVICE, "$NAME_OF_RANDOM_DEVICE",
+ AC_DEFINE_UNQUOTED([NAME_OF_RANDOM_DEVICE], ["$NAME_OF_RANDOM_DEVICE"],
[defined to the name of the (strong) random device])
- AC_DEFINE_UNQUOTED(NAME_OF_PSEUDO_RANDOM_DEVICE,
- "$NAME_OF_PSEUDO_RANDOM_DEVICE",
+ AC_DEFINE_UNQUOTED([NAME_OF_PSEUDO_RANDOM_DEVICE],
+ "$NAME_OF_PSEUDO_RANDOM_DEVICE",
[defined to the name of the pseudo random device])
- AC_DEFINE_UNQUOTED(NAME_OF_NONCE_DEVICE, "$NAME_OF_NONCE_DEVICE",
+ AC_DEFINE_UNQUOTED([NAME_OF_NONCE_DEVICE], ["$NAME_OF_NONCE_DEVICE"],
[defined to the name of the unpredictable nonce device])
-
- AC_DEFINE(GC_USE_RANDOM, 1, [Define if you want to support RNG through GC.])
])