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dnl $Id: crypto.m4,v 1.7 2001/08/29 17:02:48 assar Exp $
dnl
dnl test for crypto libraries:
dnl - libcrypto (from openssl)
dnl - libdes (from krb4)
dnl - own-built libdes
AC_DEFUN([KRB_CRYPTO],[
crypto_lib=unknown
AC_WITH_ALL([openssl])
DIR_des=
AC_MSG_CHECKING([for crypto library])
if test "$crypto_lib" = "unknown" -a "$with_openssl" != "no"; then
save_CPPFLAGS="$CPPFLAGS"
save_LIBS="$LIBS"
INCLUDE_des=
LIB_des=
if test "$with_openssl_include" != ""; then
INCLUDE_des="-I${with_openssl}/include"
fi
if test "$with_openssl_lib" != ""; then
LIB_des="-L${with_openssl}/lib"
fi
CPPFLAGS="${INCLUDE_des} ${CPPFLAGS}"
LIB_des="${LIB_des} -lcrypto"
LIB_des_a="$LIB_des"
LIB_des_so="$LIB_des"
LIB_des_appl="$LIB_des"
LIBS="${LIBS} ${LIB_des}"
AC_TRY_LINK([
#include <openssl/md4.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/des.h>
#include <openssl/rc4.h>
],
[
MD4_CTX md4;
MD5_CTX md5;
SHA_CTX sha1;
MD4_Init(&md4);
MD5_Init(&md5);
SHA1_Init(&sha1);
des_cbc_encrypt(0, 0, 0, 0, 0, 0);
RC4(0, 0, 0, 0);
], [
crypto_lib=libcrypto
AC_DEFINE([HAVE_OPENSSL], 1, [define to use openssl's libcrypto])
AC_MSG_RESULT([libcrypto])])
CPPFLAGS="$save_CPPFLAGS"
LIBS="$save_LIBS"
fi
if test "$crypto_lib" = "unknown" -a "$with_krb4" != "no"; then
save_CPPFLAGS="$CPPFLAGS"
save_LIBS="$LIBS"
INCLUDE_des="${INCLUDE_krb4}"
LIB_des=
if test "$krb4_libdir"; then
LIB_des="-L${krb4_libdir}"
fi
LIB_des="${LIB_des} -ldes"
CPPFLAGS="${CPPFLAGS} ${INCLUDE_des}"
LIBS="${LIBS} ${LIB_des}"
LIB_des_a="$LIB_des"
LIB_des_so="$LIB_des"
LIB_des_appl="$LIB_des"
LIBS="${LIBS} ${LIB_des}"
AC_TRY_LINK([
#undef KRB5 /* makes md4.h et al unhappy */
#define KRB4
#include <md4.h>
#include <md5.h>
#include <sha.h>
#include <des.h>
#include <rc4.h>
],
[
MD4_CTX md4;
MD5_CTX md5;
SHA_CTX sha1;
MD4_Init(&md4);
MD5_Init(&md5);
SHA1_Init(&sha1);
des_cbc_encrypt(0, 0, 0, 0, 0, 0);
RC4(0, 0, 0, 0);
], [crypto_lib=krb4; AC_MSG_RESULT([krb4's libdes])])
CPPFLAGS="$save_CPPFLAGS"
LIBS="$save_LIBS"
fi
if test "$crypto_lib" = "unknown"; then
DIR_des='des'
LIB_des='$(top_builddir)/lib/des/libdes.la'
LIB_des_a='$(top_builddir)/lib/des/.libs/libdes.a'
LIB_des_so='$(top_builddir)/lib/des/.libs/libdes.so'
LIB_des_appl="-ldes"
AC_MSG_RESULT([included libdes])
fi
AC_SUBST(DIR_des)
AC_SUBST(INCLUDE_des)
AC_SUBST(LIB_des)
AC_SUBST(LIB_des_a)
AC_SUBST(LIB_des_so)
AC_SUBST(LIB_des_appl)
])
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