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AX_LIB_CRYPTO([yes|no|auto])
Searches for the 'crypto' library with the --with... option.
If found, define HAVE_CRYPTO and macro CRYPTO_LIBS. Also defines CRYPTO_WITH_<algo> for the algorithms found available. Possible algorithms: AES BF CAMELLIA CAST DES IDEA RC2 RC5 MD2 MD4 MD5 SHA RIPEMD RSA DSA DH
The argument is used if no --with...-crypto option is set. Value "yes" requires the configuration by default. Value "no" does not require it by default. Value "auto" configures the library only if available.
See also AX_LIB_BEECRYPT and AX_LIB_GCRYPT.
Fabien Coelho <autoconf.archive@coelho.net>
2008-08-07
# AX_CHECK_CRYPTO_LIB([algo-name],[function]) AC_DEFUN([AX_CHECK_CRYPTO_LIB],[ AC_CHECK_LIB([crypto], $2, [ AC_DEFINE([CRYPTO_WITH_$1],[1],[Algorithm $1 in openssl crypto library]) ]) ]) # AX_LIB_CRYPTO([yes|no|auto]) AC_DEFUN([AX_LIB_CRYPTO],[ AC_MSG_CHECKING([whether openssl crypto is enabled]) AC_ARG_WITH([crypto],[ --with-crypto requite crypto library --without-crypto disable crypto library],[ AC_MSG_RESULT([$withval]) ac_with_crypto=$withval ],[ AC_MSG_RESULT([$1]) ac_with_crypto=$1 ]) if test "$ac_with_crypto" = "yes" -o "$ac_with_crypto" = "auto" ; then AC_CHECK_HEADERS([openssl/opensslconf.h],[ AC_CHECK_LIB([crypto], [CRYPTO_lock],[ AC_DEFINE([HAVE_CRYPTO],[1],[Openssl crypto library is available]) HAVE_CRYPTO=1 AC_SUBST([CRYPTO_LIBS],[-lcrypto]) # ciphers AX_CHECK_CRYPTO_LIB([AES],[AES_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([BF],[BF_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([CAST],[CAST_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([CAMELLIA],[Camellia_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([DES],[DES_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([IDEA],[idea_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([RC2],[RC2_ecb_encrypt]) AX_CHECK_CRYPTO_LIB([RC5],[RC5_32_ecb_encrypt]) # digests AX_CHECK_CRYPTO_LIB([MD2],[MD2]) AX_CHECK_CRYPTO_LIB([MD4],[MD4]) AX_CHECK_CRYPTO_LIB([MD5],[MD5]) AX_CHECK_CRYPTO_LIB([RIPEMD],[RIPEMD160]) AX_CHECK_CRYPTO_LIB([SHA],[SHA1]) # others AX_CHECK_CRYPTO_LIB([RSA],[RSA_set_method]) AX_CHECK_CRYPTO_LIB([DSA],[DSA_set_method]) AX_CHECK_CRYPTO_LIB([DH],[DH_set_method]) ]) ]) # complain only if crypto as *explicitely* required if test "$ac_with_crypto" = "yes" -a "x$HAVE_CRYPTO" = "x" ; then AC_MSG_ERROR([cannot configure required openssl crypto library]) fi fi ])
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