mirror of https://github.com/getdnsapi/getdns.git
81 lines
2.9 KiB
Plaintext
81 lines
2.9 KiB
Plaintext
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_lib_nettle.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_LIB_NETTLE([yes|no|auto])
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#
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# DESCRIPTION
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#
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# Searches for the 'nettle' library with the --with... option.
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#
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# If found, define HAVE_NETTLE and macro NETTLE_LIBS. Also defines
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# NETTLE_WITH_<algo> for the algorithms found available. Possible
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# algorithms: AES ARCTWO BLOWFISH CAST128 DES DES3 SERPENT TWOFISH MD2 MD4
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# MD5 SHA1 SHA256.
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#
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# The argument is used if no --with...-nettle option is set. Value "yes"
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# requires the configuration by default. Value "no" does not require it by
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# default. Value "auto" configures the library only if available.
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#
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# See also AX_LIB_BEECRYPT, AX_LIB_CRYPTO, and AX_LIB_GCRYPT.
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#
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# LICENSE
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#
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# Copyright (c) 2009 Fabien Coelho <autoconf.archive@coelho.net>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 10
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# AX_CHECK_NETTLE_ALGO([name],[function])
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AC_DEFUN([AX_CHECK_NETTLE_ALGO],[
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AC_CHECK_LIB([nettle], [nettle_$2],
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AC_DEFINE([NETTLE_WITH_$1],[1],[Algorithm $1 in nettle library]))
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])
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# AX_LIB_NETTLE([yes|no|auto])
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AC_DEFUN([AX_LIB_NETTLE],[
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AC_MSG_CHECKING([whether nettle is enabled])
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AC_ARG_WITH([nettle],
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AC_HELP_STRING([--with-nettle], [Require nettle library (required with GnuTLS)]),[
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AC_MSG_RESULT([$withval])
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ax_with_nettle=$withval
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],[
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AC_MSG_RESULT([$1])
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ax_with_nettle=$1
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])
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if test "$ax_with_nettle" = "yes" -o "$ax_with_nettle" = "auto" ; then
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AC_CHECK_HEADERS([nettle/nettle-meta.h],[
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AC_CHECK_LIB([nettle],[nettle_base64_encode_final],[
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AC_DEFINE([HAVE_NETTLE],[1],[Nettle library is available])
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HAVE_NETTLE=1
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AC_SUBST([NETTLE_LIBS],[-lnettle])
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# ciphers
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AX_CHECK_NETTLE_ALGO([AES],[aes_encrypt])
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AX_CHECK_NETTLE_ALGO([ARCTWO],[arctwo_encrypt])
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AX_CHECK_NETTLE_ALGO([BLOWFISH],[blowfish_encrypt])
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AX_CHECK_NETTLE_ALGO([CAST128],[cast128_encrypt])
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AX_CHECK_NETTLE_ALGO([DES],[des_encrypt])
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AX_CHECK_NETTLE_ALGO([DES3],[des3_encrypt])
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AX_CHECK_NETTLE_ALGO([SERPENT],[serpent_encrypt])
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AX_CHECK_NETTLE_ALGO([TWOFISH],[twofish_encrypt])
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# digests
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AX_CHECK_NETTLE_ALGO([MD2],[md2_digest])
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AX_CHECK_NETTLE_ALGO([MD4],[md4_digest])
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AX_CHECK_NETTLE_ALGO([MD5],[md5_digest])
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AX_CHECK_NETTLE_ALGO([SHA1],[sha1_digest])
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AX_CHECK_NETTLE_ALGO([SHA256],[sha256_digest])
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])
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])
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# complain only if explicitly required
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if test "$ax_with_nettle" = "yes" -a "x$HAVE_NETTLE" = "x" ; then
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AC_MSG_ERROR([cannot configure required nettle library])
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fi
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fi
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])
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