-# gc.m4 serial 1
-dnl Copyright (C) 2005 Free Software Foundation, Inc.
+# gc.m4 serial 9
+dnl Copyright (C) 2005-2014 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],
[
- AC_LIBSOURCES([gc.h, gc-gnulib.c, gc-libgcrypt.c])
- AC_ARG_WITH(libgcrypt,
+ AC_SUBST([LIB_CRYPTO])
+ AC_ARG_WITH([libgcrypt],
AS_HELP_STRING([--with-libgcrypt], [use libgcrypt for low-level crypto]),
libgcrypt=$withval, libgcrypt=no)
if test "$libgcrypt" != no; then
- AC_LIB_HAVE_LINKFLAGS([gcrypt], [], [#include <gcrypt.h>])
- fi
- if test "$ac_cv_libgcrypt" = yes; then
- AC_LIBOBJ([gc-libgcrypt])
- else
- AC_LIBOBJ([gc-gnulib])
-
- # Devices with randomness.
- # FIXME: Are these the best defaults?
-
- case "${target}" in
- *-openbsd*)
- NAME_OF_RANDOM_DEVICE="/dev/srandom"
- NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/prandom"
- NAME_OF_NONCE_DEVICE="/dev/urandom"
- ;;
-
- *-netbsd*)
- NAME_OF_RANDOM_DEVICE="/dev/srandom"
- NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/urandom"
- NAME_OF_NONCE_DEVICE="/dev/urandom"
- ;;
-
- *-solaris* | *-irix* | *-dec-osf* )
- NAME_OF_RANDOM_DEVICE="/dev/random"
- NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/random"
- NAME_OF_NONCE_DEVICE="/dev/random"
- ;;
-
- *)
- NAME_OF_RANDOM_DEVICE="/dev/random"
- NAME_OF_PSEUDO_RANDOM_DEVICE="/dev/urandom"
- NAME_OF_NONCE_DEVICE="/dev/urandom"
- ;;
- 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($NAME_OF_RANDOM_DEVICE)
-
- AC_MSG_CHECKING([device with pseudo random data...])
- AC_ARG_ENABLE(pseudo-random-device,
- AC_HELP_STRING([--enable-pseudo-random-device],
- [device with pseudo randomness (for Nettle)]),
- test "$enableval" != "no" && NAME_OF_PSEUDO_RANDOM_DEVICE=$enableval)
- AC_MSG_RESULT($NAME_OF_PSEUDO_RANDOM_DEVICE)
-
- AC_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($NAME_OF_NONCE_DEVICE)
-
- if test "$cross_compiling" != yes; then
- AC_CHECK_FILE($NAME_OF_RANDOM_DEVICE,,
- AC_MSG_ERROR([[device for (strong) random data `$NAME_OF_RANDOM_DEVICE' does not exist]]))
- AC_CHECK_FILE($NAME_OF_PSEUDO_RANDOM_DEVICE,,
- AC_MSG_ERROR([[device for pseudo-random data `$NAME_OF_PSEUDO_RANDOM_DEVICE' does not exist]]))
- AC_CHECK_FILE($NAME_OF_NONCE_DEVICE,,
- AC_MSG_ERROR([[device for unpredictable nonces `$NAME_OF_NONCE_DEVICE' does not exist]]))
- else
- AC_MSG_NOTICE([[Cross compiling, assuming random devices exists...]])
- fi
-
- # FIXME: Open+read 42 bytes+close twice and compare data. Should differ.
-
- 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",
- [defined to the name of the pseudo random device])
- AC_DEFINE_UNQUOTED(NAME_OF_NONCE_DEVICE, "$NAME_OF_NONCE_DEVICE",
- [defined to the name of the unpredictable nonce device])
+ AC_LIB_HAVE_LINKFLAGS([gcrypt], [gpg-error], [
+#include <gcrypt.h>
+/* GCRY_MODULE_ID_USER was added in 1.4.4 and gc-libgcrypt.c
+ will fail on startup if we don't have 1.4.4 or later, so
+ test for it early. */
+#if !defined GCRY_MODULE_ID_USER
+error too old libgcrypt
+#endif
+])
fi
])
-
-# Prerequisites of lib/gc.h
-AC_DEFUN([gl_PREREQ_GC], [:])
projects / gnulib.git / blobdiff