Zabbix

# GnuTLS LIBGNUTLS_CHECK_CONFIG ([DEFAULT-ACTION])

# ----------------------------------------------------------

# Derived from libssh2.m4

#

# Checks for GnuTLS library libgnutls.  DEFAULT-ACTION is the string

# yes or no to specify whether to default to --with-gnutls or

# --without-gnutls. If not supplied, DEFAULT-ACTION is no.

#

# This macro #defines HAVE_GNUTLS if a required header files are

# found, and sets @GNUTLS_LDFLAGS@, @GNUTLS_CFLAGS@ and @GNUTLS_LIBS@

# to the necessary values.

#

# Users may override the detected values by doing something like:

# GNUTLS_LIBS="-lgnutls" GNUTLS_CFLAGS="-I/usr/myinclude" ./configure

#

# This macro is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

​

AC_DEFUN([LIBGNUTLS_TRY_LINK],

[

AC_LINK_IFELSE([AC_LANG_PROGRAM([[

#include <gnutls/gnutls.h>

]], [[

    gnutls_global_init();

]])],[found_gnutls="yes"],[])

])dnl

​

AC_DEFUN([LIBGNUTLS_ACCEPT_VERSION],

[

    # Zabbix minimal supported version of libgnutls:

    minimal_gnutls_version_major=3

    minimal_gnutls_version_minor=1

    minimal_gnutls_version_patch=18

​

    # get version

    found_gnutls_version_major=`cat $1 | $EGREP \#define.*GNUTLS_VERSION_MAJOR | $AWK '{print @S|@3;}'`

    found_gnutls_version_minor=`cat $1 | $EGREP \#define.*GNUTLS_VERSION_MINOR | $AWK '{print @S|@3;}'`

    found_gnutls_version_patch=`cat $1 | $EGREP \#define.*GNUTLS_VERSION_PATCH | $AWK '{print @S|@3;}'`

​

    if test $((found_gnutls_version_major)) -gt $((minimal_gnutls_version_major)); then

        accept_gnutls_version="yes"

    elif test $((found_gnutls_version_major)) -lt $((minimal_gnutls_version_major)); then

        accept_gnutls_version="no"

    elif test $((found_gnutls_version_minor)) -gt $((minimal_gnutls_version_minor)); then

        accept_gnutls_version="yes"

    elif test $((found_gnutls_version_minor)) -lt $((minimal_gnutls_version_minor)); then

        accept_gnutls_version="no"

    elif test $((found_gnutls_version_patch)) -ge $((minimal_gnutls_version_patch)); then

        accept_gnutls_version="yes"

    else

        accept_gnutls_version="no"

    fi;

])dnl

​

AC_DEFUN([LIBGNUTLS_CHECK_CONFIG],

[

  AC_ARG_WITH(gnutls,[

If you want to use encryption provided by GnuTLS library:

AS_HELP_STRING([--with-gnutls@<:@=DIR@:>@],[use GnuTLS package @<:@default=no@:>@, DIR is the libgnutls install directory.])],

    [

    if test "$withval" = "no"; then

        want_gnutls="no"

        _libgnutls_dir="no"

    elif test "$withval" = "yes"; then

        want_gnutls="yes"

        _libgnutls_dir="no"

    else

        want_gnutls="yes"

        _libgnutls_dir=$withval

    fi

    accept_gnutls_version="no"

    ],[want_gnutls=ifelse([$1],,[no],[$1])]

  )

​

  if test "x$want_gnutls" = "xyes"; then

     AC_MSG_CHECKING(for GnuTLS support)

     if test "x$_libgnutls_dir" = "xno"; then

       if test -f /usr/local/include/gnutls/gnutls.h; then

         GNUTLS_CFLAGS=-I/usr/local/include

         GNUTLS_LDFLAGS=-L/usr/local/lib

         GNUTLS_LIBS="-lgnutls"

         found_gnutls="yes"

         LIBGNUTLS_ACCEPT_VERSION([/usr/local/include/gnutls/gnutls.h])

       elif test -f /usr/include/gnutls/gnutls.h; then

         GNUTLS_CFLAGS=-I/usr/include

         GNUTLS_LDFLAGS=-L/usr/lib

         GNUTLS_LIBS="-lgnutls"

         found_gnutls="yes"

         LIBGNUTLS_ACCEPT_VERSION([/usr/include/gnutls/gnutls.h])

       else #libraries are not found in default directories