compile time dependency on `iceauth` should be runtime dependency/configurable

Submitted by Paul Menzel

Assigned to Xfce Bug Triage

Description

Since its creation configure.in.in contains a check for iceauth.

dnl Check for iceauth
AC_PATH_PROG([ICEAUTH], [iceauth])
if test x"$ICEAUTH" != x""; then
	AC_DEFINE_UNQUOTED([ICEAUTH_CMD], ["$ICEAUTH"], [path to iceauth])
else
	AC_MSG_ERROR([iceauth missing, please check your X11 installation])
fi

This check does not work if you are for example cross compiling [1]. For example you cannot execute a binary compiled for the ARM architecture on the a x86 build host. Additionally the assumption that iceauth should be present when compiling the program is not valid.

I do not know if there is a better configure check [2] or if this should be converted to an option, where the default patch can be changed.

A default path should be set up

dnl Check for iceauth
AC_PATH_PROG([ICEAUTH], [iceauth], [/usr/bin/iceauth])

and xfce4-session should fail gracefully when it is run and iceauth could not be found. Some check in xfce4-session/ice-layer.c.

[1] http://lists.linuxtogo.org/pipermail/openembedded-devel/2011-March/030721.html [2] http://www.gnu.org/software/autoconf/manual/autoconf-2.60/html_node/Generic-Programs.html

Version: 4.8.0