macros/gssapi-check.m4

   1 dnl $Id: gssapi-check.m4,v 1.1.2.1 2003-09-09 16:42:22 didg Exp $
   2 dnl Autoconf macro to check for kerberos
   3
   4 AC_DEFUN([NETATALK_GSSAPI_CHECK],
   5 [
   6         FOUND_GSSAPI=no
   7         GSSAPI_LIBS=""
   8         GSSAPI_CFLAGS=""
   9
  10         AC_ARG_ENABLE(gssapi,
  11                 [  --enable-gssapi[=DIR]     compile Kerberos V UAM],
  12                 [compilegssapi=$enableval],
  13                 [compilegssapi=no]
  14         )
  15
  16         if test x"$compilegssapi" != x"no"; then
  17
  18                 if test "x$compilegssapi" != "xyes"; then
  19                         GSSAPI_CFLAGS="-I$withval/include"
  20                         GSSAPI_CPPFLAGS="-I$withval/include"
  21                         GSSAPI_LDFLAGS="-L$withval/lib"
  22                         FOUND_GSSAPI=yes
  23                         AC_MSG_CHECKING([checking for GSSAPI support in])
  24                         AC_MSG_RESULT([$compilegssapi])
  25                 fi
  26
  27
  28         # Do no harm to the values of CFLAGS and LIBS while testing for
  29         # Kerberos support.
  30
  31                 ac_save_CFLAGS=$CFLAGS
  32                 ac_save_CPPFLAGS=$CPPFLAGS
  33                 ac_save_LDFLAGS=$LDFLAGS
  34                 ac_save_LIBS=$LIBS
  35
  36                 if test x$FOUND_GSSAPI = x"no"; then
  37         #################################################
  38         # check for krb5-config from recent MIT and Heimdal kerberos 5
  39         AC_PATH_PROG(KRB5_CONFIG, krb5-config)
  40         AC_MSG_CHECKING(for working krb5-config)
  41         if test -x "$KRB5_CONFIG"; then
  42           ac_save_CFLAGS=$CFLAGS
  43           CFLAGS="";export CFLAGS
  44           ac_save_LDFLAGS=$LDFLAGS
  45           LDFLAGS="";export LDFLAGS
  46           GSSAPI_LIBS="`$KRB5_CONFIG --libs gssapi`"
  47           GSSAPI_CFLAGS="`$KRB5_CONFIG --cflags | sed s/@INCLUDE_des@//`"
  48           GSSAPI_CPPFLAGS="`$KRB5_CONFIG --cflags | sed s/@INCLUDE_des@//`"
  49           CFLAGS=$ac_save_CFLAGS;export CFLAGS
  50           LDFLAGS=$ac_save_LDFLAGS;export LDFLAGS
  51           FOUND_GSSAPI=yes
  52           AC_MSG_RESULT(yes)
  53         else
  54           AC_MSG_RESULT(no. Fallback to previous krb5 detection strategy)
  55         fi
  56        fi
  57
  58         if test x$FOUND_GSSAPI = x"no"; then
  59         #################################################
  60         # see if this box has the SuSE location for the heimdal krb implementation
  61         AC_MSG_CHECKING(for /usr/include/heimdal)
  62         if test -d /usr/include/heimdal; then
  63           if test -f /usr/lib/heimdal/lib/libkrb5.a; then
  64                 GSSAPI_CFLAGS="-I/usr/include/heimdal"
  65                 GSSAPI_CPPFLAGS="-I/usr/include/heimdal"
  66                 GSSAPI_LDFLAGS="-L/usr/lib/heimdal/lib"
  67                 AC_MSG_RESULT(yes)
  68                 FOUND_GSSAPI=yes
  69           else
  70                 GSSAPI_CFLAGS="-I/usr/include/heimdal"
  71                 GSSAPI_CPPFLAGS="-I/usr/include/heimdal"
  72                 AC_MSG_RESULT(yes)
  73                 FOUND_GSSAPI=yes
  74           fi
  75         else
  76           AC_MSG_RESULT(no)
  77         fi
  78        fi
  79
  80   if test x$FOUND_GSSAPI = x"no"; then
  81     #################################################
  82     # see if this box has the RedHat location for kerberos
  83     AC_MSG_CHECKING(for /usr/kerberos)
  84     if test -d /usr/kerberos -a -f /usr/kerberos/lib/libkrb5.a; then
  85       GSSAPI_LDFLAGS="-L/usr/kerberos/lib"
  86       GSSAPI_CFLAGS="-I/usr/kerberos/include"
  87       GSSAPI_CPPFLAGS="-I/usr/kerberos/include"
  88       AC_MSG_RESULT(yes)
  89     else
  90       AC_MSG_RESULT(no)
  91     fi
  92   fi
  93
  94   CFLAGS="$CFLAGS $GSSAPI_CFLAGS"
  95   CPPFLAGS="$CPPFLAGS $GSSAPI_CPPFLAGS"
  96   LDFLAGS="$LDFLAGS $GSSAPI_LDFLAGS"
  97                 LIBS="$GSSAPI_LIBS"
  98
  99
 100                 # check for gssapi headers
 101
 102                 gss_headers_found=no
 103                 AC_CHECK_HEADERS(gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_krb5.h,[gss_headers_found=yes],[],[])
 104                 if test x"$gss_headers_found" = x"no"; then
 105                         AC_MSG_ERROR([GSSAPI installation not found, headers missing])
 106                 fi
 107
 108                 # check for libs
 109
 110                 AC_CHECK_LIB(gssapi, gss_display_status)
 111                 AC_CHECK_LIB(gssapi_krb5, gss_display_status)
 112
 113                 # check for functions
 114
 115                 AC_CHECK_FUNC(gss_acquire_cred,[],[AC_MSG_ERROR([GSSAPI: required function gss_acquire_cred missing])])
 116
 117                 # Heimdal/MIT compatibility fix
 118   if test "$ac_cv_header_gssapi_h" = "yes"; then
 119     AC_EGREP_HEADER(GSS_C_NT_HOSTBASED_SERVICE, gssapi.h, AC_DEFINE(HAVE_GSS_C_NT_HOSTBASED_SERVICE,1,[Wheter GSS_C_NT_HOSTBASED_SERVICE is in gssapi.h]))
 120   else
 121     AC_EGREP_HEADER(GSS_C_NT_HOSTBASED_SERVICE, gssapi/gssapi.h, AC_DEFINE(HAVE_GSS_C_NT_HOSTBASED_SERVICE,1,[Wheter GSS_C_NT_HOSTBASED_SERVICE is in gssapi.h]))
 122   fi
 123
 124
 125     AC_MSG_CHECKING(whether GSSAPI support is used)
 126                 if test x"$ac_cv_lib_gssapi_gss_display_status" = x"yes" || test x"$ac_cv_lib_gssapi_krb5_gss_display_status" = x"yes"; then
 127                         AC_DEFINE(HAVE_GSSAPI,1,[Whether to enable GSSAPI support])
 128                         AC_MSG_RESULT([yes])
 129                         GSSAPI_LIBS="$LIBS $LDLAGS"
 130   else
 131                         AC_MSG_RESULT([no])
 132                         AC_MSG_ERROR([GSSAPI installation not found])
 133     GSSAPI_LIBS=""
 134   fi
 135
 136   LIBS="$ac_save_LIBS"
 137   CFLAGS="$ac_save_CFLAGS"
 138   LDFLAGS="$ac_save_LDFLAGS"
 139   CPPFLAGS="$ac_save_CPPFLAGS"
 140         fi
 141
 142         AM_CONDITIONAL(USE_GSSAPI, test x"$ac_cv_lib_gssapi_gss_display_status" = x"yes")
 143   AC_SUBST(GSSAPI_LIBS)
 144   AC_SUBST(GSSAPI_CFLAGS)
 145
 146 ])