nut-debian/m4/nut_check_libavahi.m4
2011-09-29 20:14:46 +02:00

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dnl Check for LIBAVAHI compiler flags. On success, set nut_have_neon="yes"
dnl and set LIBAVAHI_CFLAGS and LIBAVAHI_LIBS. On failure, set
dnl nut_have_avahi="no". This macro can be run multiple times, but will
dnl do the checking only once.
AC_DEFUN([NUT_CHECK_LIBAVAHI],
[
if test -z "${nut_have_avahi_seen}"; then
nut_have_avahi_seen=yes
dnl save CFLAGS and LIBS
CFLAGS_ORIG="${CFLAGS}"
LIBS_ORIG="${LIBS}"
dnl See which version of the avahi library (if any) is installed
AC_MSG_CHECKING(for avahi-core version via pkg-config (0.6.30 minimum required))
AVAHI_CORE_VERSION="`pkg-config --silence-errors --modversion avahi-core 2>/dev/null`"
if test "$?" != "0" -o -z "${AVAHI_CORE_VERSION}"; then
AVAHI_CORE_VERSION="none"
fi
AC_MSG_RESULT(${AVAHI_CORE_VERSION} found)
AC_MSG_CHECKING(for avahi-client version via pkg-config (0.6.30 minimum required))
AVAHI_CLIENT_VERSION="`pkg-config --silence-errors --modversion avahi-client 2>/dev/null`"
if test "$?" != "0" -o -z "${AVAHI_CLIENT_VERSION}"; then
AVAHI_CLIENT_VERSION="none"
fi
AC_MSG_RESULT(${AVAHI_CLIENT_VERSION} found)
AC_MSG_CHECKING(for avahi cflags)
AC_ARG_WITH(avahi-includes,
AS_HELP_STRING([@<:@--with-avahi-includes=CFLAGS@:>@], [include flags for the avahi library]),
[
case "${withval}" in
yes|no)
AC_MSG_ERROR(invalid option --with(out)-avahi-includes - see docs/configure.txt)
;;
*)
CFLAGS="${withval}"
;;
esac
], [CFLAGS="`pkg-config --silence-errors --cflags avahi-core avahi-client 2>/dev/null`"])
AC_MSG_RESULT([${CFLAGS}])
AC_MSG_CHECKING(for avahi ldflags)
AC_ARG_WITH(avahi-libs,
AS_HELP_STRING([@<:@--with-avahi-libs=LIBS@:>@], [linker flags for the avahi library]),
[
case "${withval}" in
yes|no)
AC_MSG_ERROR(invalid option --with(out)-avahi-libs - see docs/configure.txt)
;;
*)
LIBS="${withval}"
;;
esac
], [LIBS="`pkg-config --silence-errors --libs avahi-core avahi-client 2>/dev/null`"])
AC_MSG_RESULT([${LIBS}])
dnl check if avahi-core is usable
AC_CHECK_HEADERS(avahi-common/malloc.h, [nut_have_avahi=yes], [nut_have_avahi=no], [AC_INCLUDES_DEFAULT])
AC_CHECK_FUNCS(avahi_free, [], [nut_have_avahi=no])
if test "${nut_have_avahi}" = "yes"; then
dnl check if avahi-client is usable
AC_CHECK_HEADERS(avahi-client/client.h, [nut_have_avahi=yes], [nut_have_avahi=no], [AC_INCLUDES_DEFAULT])
AC_CHECK_FUNCS(avahi_client_new, [], [nut_have_avahi=no])
if test "${nut_have_avahi}" = "yes"; then
LIBAVAHI_CFLAGS="${CFLAGS}"
LIBAVAHI_LIBS="${LIBS}"
fi
fi
dnl restore original CFLAGS and LIBS
CFLAGS="${CFLAGS_ORIG}"
LIBS="${LIBS_ORIG}"
fi
])