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dnl
dnl "$Id: cups-ssl.m4 4800 2005-10-18 18:06:20Z mike $"
dnl
dnl OpenSSL/GNUTLS stuff for the Common UNIX Printing System (CUPS).
dnl
dnl Copyright 1997-2005 by Easy Software Products, all rights reserved.
dnl
dnl These coded instructions, statements, and computer programs are the
dnl property of Easy Software Products and are protected by Federal
dnl copyright law. Distribution and use rights are outlined in the file
dnl "LICENSE.txt" which should have been included with this file. If this
dnl file is missing or damaged please contact Easy Software Products
dnl at:
dnl
dnl Attn: CUPS Licensing Information
dnl Easy Software Products
dnl 44141 Airport View Drive, Suite 204
dnl Hollywood, Maryland 20636 USA
dnl
dnl Voice: (301) 373-9600
dnl EMail: cups-info@cups.org
dnl WWW: http://www.cups.org
dnl
AC_ARG_ENABLE(ssl, [ --enable-ssl turn on SSL/TLS support, default=yes])
AC_ARG_ENABLE(cdsassl, [ --enable-cdsassl use CDSA for SSL/TLS support, default=first])
AC_ARG_ENABLE(gnutls, [ --enable-gnutls use GNU TLS for SSL/TLS support, default=second])
AC_ARG_ENABLE(openssl, [ --enable-openssl use OpenSSL for SSL/TLS support, default=third])
AC_ARG_WITH(openssl-libs, [ --with-openssl-libs set directory for OpenSSL library],
LDFLAGS="-L$withval $LDFLAGS"
DSOFLAGS="-L$withval $DSOFLAGS",)
AC_ARG_WITH(openssl-includes, [ --with-openssl-includes set directory for OpenSSL includes],
CFLAGS="-I$withval $CFLAGS"
CXXFLAGS="-I$withval $CXXFLAGS"
CPPFLAGS="-I$withval $CPPFLAGS",)
SSLFLAGS=""
SSLLIBS=""
if test x$enable_ssl != xno; then
dnl Look for CDSA...
if test "x${SSLLIBS}" = "x" -a "x${enable_cdsassl}" != "xno"; then
if test $uname = Darwin; then
AC_CHECK_HEADER(Security/SecureTransport.h,
[SSLLIBS="-framework CoreFoundation -framework Security"
AC_DEFINE(HAVE_SSL)
AC_DEFINE(HAVE_CDSASSL)])
fi
fi
dnl Then look for GNU TLS...
if test "x${SSLLIBS}" = "x" -a "x${enable_gnutls}" != "xno"; then
AC_CHECK_HEADER(gnutls/gnutls.h,
dnl Save the current libraries so the crypto stuff isn't always
dnl included...
SAVELIBS="$LIBS"
AC_CHECK_LIB(gnutls, gnutls_init,
[SSLLIBS="-lgnutls"
AC_DEFINE(HAVE_SSL)
AC_DEFINE(HAVE_GNUTLS)])
LIBS="$SAVELIBS")
fi
dnl Check for the OpenSSL library last...
if test "x${SSLLIBS}" = "x" -a "x${enable_openssl}" != "xno"; then
AC_CHECK_HEADER(openssl/ssl.h,
dnl Save the current libraries so the crypto stuff isn't always
dnl included...
SAVELIBS="$LIBS"
dnl Some ELF systems can't resolve all the symbols in libcrypto
dnl if libcrypto was linked against RSAREF, and fail to link the
dnl test program correctly, even though a correct installation
dnl of OpenSSL exists. So we test the linking three times in
dnl case the RSAREF libraries are needed.
for libcrypto in \
"-lcrypto" \
"-lcrypto -lrsaref" \
"-lcrypto -lRSAglue -lrsaref"
do
AC_CHECK_LIB(ssl,SSL_new,
[SSLFLAGS="-DOPENSSL_DISABLE_OLD_DES_SUPPORT"
SSLLIBS="-lssl $libcrypto"
AC_DEFINE(HAVE_SSL)
AC_DEFINE(HAVE_LIBSSL)],,
$libcrypto)
if test "x${SSLLIBS}" != "x"; then
break
fi
done
LIBS="$SAVELIBS")
fi
fi
AC_SUBST(SSLFLAGS)
AC_SUBST(SSLLIBS)
EXPORT_SSLLIBS="$SSLLIBS"
AC_SUBST(EXPORT_SSLLIBS)
dnl
dnl End of "$Id: cups-ssl.m4 4800 2005-10-18 18:06:20Z mike $".
dnl
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