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dnl $Id: gssapi-check.m4,v 1.1.2.5 2004/06/18 07:57:19 bfernhomberg Exp $
dnl Autoconf macro to check for kerberos
AC_DEFUN([NETATALK_GSSAPI_CHECK],
[
FOUND_GSSAPI=no
GSSAPI_LIBS=""
GSSAPI_CFLAGS=""
AC_ARG_WITH(gssapi,
[ --with-gssapi[[=PATH]] path to GSSAPI for Kerberos V UAM [[auto]]],
[compilegssapi=$withval],
[compilegssapi=auto]
)
if test x"$compilegssapi" != x"no"; then
if test "x$compilegssapi" != "xyes" -a "x$compilegssapi" != "xauto"; then
GSSAPI_CFLAGS="-I$withval/include"
GSSAPI_CPPFLAGS="-I$withval/include"
GSSAPI_LDFLAGS="-L$withval/${atalk_libname}"
FOUND_GSSAPI=yes
AC_MSG_CHECKING([checking for GSSAPI support in])
AC_MSG_RESULT([$compilegssapi])
fi
# Do no harm to the values of CFLAGS and LIBS while testing for
# Kerberos support.
ac_save_CFLAGS=$CFLAGS
ac_save_CPPFLAGS=$CPPFLAGS
ac_save_LDFLAGS=$LDFLAGS
ac_save_LIBS=$LIBS
if test x$FOUND_GSSAPI = x"no"; then
#################################################
# check for krb5-config from recent MIT and Heimdal kerberos 5
AC_PATH_PROG(KRB5_CONFIG, krb5-config)
AC_MSG_CHECKING(for working krb5-config)
if test -x "$KRB5_CONFIG"; then
ac_save_CFLAGS=$CFLAGS
CFLAGS="";export CFLAGS
ac_save_LDFLAGS=$LDFLAGS
LDFLAGS="";export LDFLAGS
GSSAPI_LIBS="`$KRB5_CONFIG --libs gssapi`"
GSSAPI_CFLAGS="`$KRB5_CONFIG --cflags | sed s/@INCLUDE_des@//`"
GSSAPI_CPPFLAGS="`$KRB5_CONFIG --cflags | sed s/@INCLUDE_des@//`"
CFLAGS=$ac_save_CFLAGS;export CFLAGS
LDFLAGS=$ac_save_LDFLAGS;export LDFLAGS
FOUND_GSSAPI=yes
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no. Fallback to previous krb5 detection strategy)
fi
fi
if test x$FOUND_GSSAPI = x"no"; then
#################################################
# see if this box has the SuSE location for the heimdal krb implementation
AC_MSG_CHECKING(for /usr/include/heimdal)
if test -d /usr/include/heimdal; then
if test -f /usr/lib/heimdal/lib/libkrb5.a; then
GSSAPI_CFLAGS="-I/usr/include/heimdal"
GSSAPI_CPPFLAGS="-I/usr/include/heimdal"
GSSAPI_LDFLAGS="-L/usr/lib/heimdal/lib"
AC_MSG_RESULT(yes)
FOUND_GSSAPI=yes
else
GSSAPI_CFLAGS="-I/usr/include/heimdal"
GSSAPI_CPPFLAGS="-I/usr/include/heimdal"
AC_MSG_RESULT(yes)
FOUND_GSSAPI=yes
fi
else
AC_MSG_RESULT(no)
fi
fi
if test x$FOUND_GSSAPI = x"no"; then
#################################################
# see if this box has the RedHat location for kerberos
AC_MSG_CHECKING(for /usr/kerberos)
if test -d /usr/kerberos -a -f /usr/kerberos/lib/libkrb5.a; then
GSSAPI_LDFLAGS="-L/usr/kerberos/lib"
GSSAPI_CFLAGS="-I/usr/kerberos/include"
GSSAPI_CPPFLAGS="-I/usr/kerberos/include"
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
fi
CFLAGS="$CFLAGS $GSSAPI_CFLAGS"
CPPFLAGS="$CPPFLAGS $GSSAPI_CPPFLAGS"
LDFLAGS="$LDFLAGS $GSSAPI_LDFLAGS"
LIBS="$GSSAPI_LIBS"
# check for gssapi headers
gss_headers_found=no
AC_CHECK_HEADERS(gssapi.h gssapi/gssapi_generic.h gssapi/gssapi.h gssapi/gssapi_krb5.h,[gss_headers_found=yes],[],[])
if test x"$gss_headers_found" = x"no"; then
AC_MSG_ERROR([GSSAPI installation not found, headers missing])
fi
# check for libs
AC_CHECK_LIB(gssapi, gss_display_status)
AC_CHECK_LIB(gssapi_krb5, gss_display_status)
# check for functions
AC_CHECK_FUNC(gss_acquire_cred,[],[AC_MSG_ERROR([GSSAPI: required function gss_acquire_cred missing])])
# Heimdal/MIT compatibility fix
if test "$ac_cv_header_gssapi_h" = "yes"; then
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]))
else
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]))
fi
AC_MSG_CHECKING(whether GSSAPI support is used)
if test x"$ac_cv_func_gss_acquire_cred" = x"yes"; then
AC_DEFINE(HAVE_GSSAPI,1,[Whether to enable GSSAPI support])
AC_MSG_RESULT([yes])
GSSAPI_LIBS="$LDFLAGS $LIBS"
else
AC_MSG_RESULT([no])
if test x"$compilegssapi" = x"yes"; then
AC_MSG_ERROR([GSSAPI installation not found])
fi
GSSAPI_LIBS=""
fi
LIBS="$ac_save_LIBS"
CFLAGS="$ac_save_CFLAGS"
LDFLAGS="$ac_save_LDFLAGS"
CPPFLAGS="$ac_save_CPPFLAGS"
fi
if test x"$ac_cv_func_gss_acquire_cred" = x"yes"; then
ifelse([$1], , :, [$1])
else
ifelse([$2], , :, [$2])
fi
AC_SUBST(GSSAPI_LIBS)
AC_SUBST(GSSAPI_CFLAGS)
])
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