Outdated autotools configure script

[scaronni]

As in c-icap/c-icap-server#50, also the modules would need some update on the autotools part:

$ autoreconf -vif
autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force -I m4
aclocal: warning: couldn't open directory 'm4': No such file or directory
autoreconf: configure.ac: tracing
autoreconf: running: libtoolize --copy --force
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
autoreconf: configure.ac: not using Intltool
autoreconf: configure.ac: not using Gtkdoc
autoreconf: running: aclocal --force -I m4
autoreconf: running: /usr/bin/autoconf --force
configure.ac:8: warning: 'AM_CONFIG_HEADER': this macro is obsolete.
configure.ac:8: You should use the 'AC_CONFIG_HEADERS' macro instead.
./lib/autoconf/general.m4:2434: AC_DIAGNOSE is expanded from...
aclocal.m4:781: AM_CONFIG_HEADER is expanded from...
configure.ac:8: the top level
configure.ac:23: warning: The macro `AC_LIBTOOL_DLOPEN' is obsolete.
configure.ac:23: You should run autoupdate.
m4/ltoptions.m4:113: AC_LIBTOOL_DLOPEN is expanded from...
configure.ac:23: the top level
configure.ac:23: warning: AC_LIBTOOL_DLOPEN: Remove this warning and the call to _LT_SET_OPTION when you
configure.ac:23: put the 'dlopen' option into LT_INIT's first parameter.
./lib/autoconf/general.m4:2434: AC_DIAGNOSE is expanded from...
m4/ltoptions.m4:113: AC_LIBTOOL_DLOPEN is expanded from...
configure.ac:23: the top level
configure.ac:24: warning: The macro `AC_LIBTOOL_WIN32_DLL' is obsolete.
configure.ac:24: You should run autoupdate.
m4/ltoptions.m4:148: AC_LIBTOOL_WIN32_DLL is expanded from...
configure.ac:24: the top level
configure.ac:24: warning: AC_LIBTOOL_WIN32_DLL: Remove this warning and the call to _LT_SET_OPTION when you
configure.ac:24: put the 'win32-dll' option into LT_INIT's first parameter.
./lib/autoconf/general.m4:2434: AC_DIAGNOSE is expanded from...
m4/ltoptions.m4:148: AC_LIBTOOL_WIN32_DLL is expanded from...
configure.ac:24: the top level
configure.ac:25: warning: The macro `AC_PROG_LIBTOOL' is obsolete.
configure.ac:25: You should run autoupdate.
m4/libtool.m4:100: AC_PROG_LIBTOOL is expanded from...
configure.ac:25: the top level
configure.ac:175: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:175: You should run autoupdate.
./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
configure.ac:175: the top level
configure.ac:184: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:184: You should run autoupdate.
./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
configure.ac:184: the top level
configure.ac:196: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:196: You should run autoupdate.
./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
configure.ac:196: the top level
configure.ac:209: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:209: You should run autoupdate.
./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
configure.ac:209: the top level
configure.ac:449: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:449: You should run autoupdate.
./lib/autoconf/general.m4:2847: AC_TRY_COMPILE is expanded from...
configure.ac:449: the top level
configure.ac:471: warning: The macro `AC_HEADER_STDC' is obsolete.
configure.ac:471: You should run autoupdate.
./lib/autoconf/headers.m4:704: AC_HEADER_STDC is expanded from...
configure.ac:471: the top level
configure.ac:487: warning: AC_OUTPUT should be used without arguments.
configure.ac:487: You should run autoupdate.
autoreconf: running: /usr/bin/autoheader --force
autoreconf: running: automake --add-missing --copy --force-missing
configure.ac:14: installing './compile'
configure.ac:13: installing './config.guess'
configure.ac:13: installing './config.sub'
configure.ac:10: installing './install-sh'
configure.ac:10: installing './missing'
modules/Makefile.am: installing './depcomp'
autoreconf: Leaving directory '.'

Thanks.