config-scripts/cups-ssl.m4

   1 dnl
   2 dnl "$Id: cups-ssl.m4 7241 2008-01-22 22:34:52Z mike $"
   3 dnl
   4 dnl   OpenSSL/GNUTLS stuff for the Common UNIX Printing System (CUPS).
   5 dnl
   6 dnl   Copyright 2007-2009 by Apple Inc.
   7 dnl   Copyright 1997-2007 by Easy Software Products, all rights reserved.
   8 dnl
   9 dnl   These coded instructions, statements, and computer programs are the
  10 dnl   property of Apple Inc. and are protected by Federal copyright
  11 dnl   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12 dnl   which should have been included with this file.  If this file is
  13 dnl   file is missing or damaged, see the license at "http://www.cups.org/".
  14 dnl
  15
  16 AC_ARG_ENABLE(ssl, [  --disable-ssl           disable SSL/TLS support])
  17 AC_ARG_ENABLE(cdsassl, [  --enable-cdsassl        use CDSA for SSL/TLS support, default=first])
  18 AC_ARG_ENABLE(gnutls, [  --enable-gnutls         use GNU TLS for SSL/TLS support, default=second])
  19 AC_ARG_ENABLE(openssl, [  --enable-openssl        use OpenSSL for SSL/TLS support, default=third])
  20 AC_ARG_WITH(openssl-libs, [  --with-openssl-libs     set directory for OpenSSL library],
  21     LDFLAGS="-L$withval $LDFLAGS"
  22     DSOFLAGS="-L$withval $DSOFLAGS",)
  23 AC_ARG_WITH(openssl-includes, [  --with-openssl-includes set directory for OpenSSL includes],
  24     CFLAGS="-I$withval $CFLAGS"
  25     CPPFLAGS="-I$withval $CPPFLAGS",)
  26
  27 SSLFLAGS=""
  28 SSLLIBS=""
  29
  30 if test x$enable_ssl != xno; then
  31     dnl Look for CDSA...
  32     if test "x${SSLLIBS}" = "x" -a "x${enable_cdsassl}" != "xno"; then
  33         if test $uname = Darwin; then
  34             AC_CHECK_HEADER(Security/SecureTransport.h, [
  35                 SSLLIBS="-framework CoreFoundation -framework Security"
  36                 AC_DEFINE(HAVE_SSL)
  37                 AC_DEFINE(HAVE_CDSASSL)
  38
  39                 dnl Check for the various security headers...
  40                 AC_CHECK_HEADER(Security/SecPolicy.h,
  41                     AC_DEFINE(HAVE_SECPOLICY_H))
  42                 AC_CHECK_HEADER(Security/SecPolicyPriv.h,
  43                     AC_DEFINE(HAVE_SECPOLICYPRIV_H))
  44                 AC_CHECK_HEADER(Security/SecBasePriv.h,
  45                     AC_DEFINE(HAVE_SECBASEPRIV_H))
  46                 AC_CHECK_HEADER(Security/SecIdentitySearchPriv.h,
  47                     AC_DEFINE(HAVE_SECIDENTITYSEARCHPRIV_H))
  48
  49                 dnl Check for SecIdentitySearchCreateWithPolicy...
  50                 AC_MSG_CHECKING(for SecIdentitySearchCreateWithPolicy)
  51                 if test $uversion -ge 80; then
  52                     AC_DEFINE(HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY)
  53                     AC_MSG_RESULT(yes)
  54                 else
  55                     AC_MSG_RESULT(no)
  56                 fi])
  57         fi
  58     fi
  59
  60     dnl Then look for GNU TLS...
  61     if test "x${SSLLIBS}" = "x" -a "x${enable_gnutls}" != "xno" -a "x$PKGCONFIG" != x; then
  62         AC_PATH_PROG(LIBGNUTLSCONFIG,libgnutls-config)
  63         if $PKGCONFIG --exists gnutls; then
  64             SSLLIBS=`$PKGCONFIG --libs gnutls`
  65             SSLFLAGS=`$PKGCONFIG --cflags gnutls`
  66             AC_DEFINE(HAVE_SSL)
  67             AC_DEFINE(HAVE_GNUTLS)
  68         fi
  69     fi
  70
  71     dnl Check for the OpenSSL library last...
  72     if test "x${SSLLIBS}" = "x" -a "x${enable_openssl}" != "xno"; then
  73         AC_CHECK_HEADER(openssl/ssl.h,
  74             dnl Save the current libraries so the crypto stuff isn't always
  75             dnl included...
  76             SAVELIBS="$LIBS"
  77
  78             dnl Some ELF systems can't resolve all the symbols in libcrypto
  79             dnl if libcrypto was linked against RSAREF, and fail to link the
  80             dnl test program correctly, even though a correct installation
  81             dnl of OpenSSL exists.  So we test the linking three times in
  82             dnl case the RSAREF libraries are needed.
  83
  84             for libcrypto in \
  85                 "-lcrypto" \
  86                 "-lcrypto -lrsaref" \
  87                 "-lcrypto -lRSAglue -lrsaref"
  88             do
  89                 AC_CHECK_LIB(ssl,SSL_new,
  90                     [SSLFLAGS="-DOPENSSL_DISABLE_OLD_DES_SUPPORT"
  91                      SSLLIBS="-lssl $libcrypto"
  92                      AC_DEFINE(HAVE_SSL)
  93                      AC_DEFINE(HAVE_LIBSSL)],,
  94                     $libcrypto)
  95
  96                 if test "x${SSLLIBS}" != "x"; then
  97                     break
  98                 fi
  99             done
 100
 101             LIBS="$SAVELIBS")
 102     fi
 103 fi
 104
 105 if test "x$SSLLIBS" != x; then
 106     AC_MSG_RESULT([    Using SSLLIBS="$SSLLIBS"])
 107     AC_MSG_RESULT([    Using SSLFLAGS="$SSLFLAGS"])
 108 fi
 109
 110 AC_SUBST(SSLFLAGS)
 111 AC_SUBST(SSLLIBS)
 112
 113 EXPORT_SSLLIBS="$SSLLIBS"
 114 AC_SUBST(EXPORT_SSLLIBS)
 115
 116
 117 dnl
 118 dnl End of "$Id: cups-ssl.m4 7241 2008-01-22 22:34:52Z mike $".
 119 dnl