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wireshark: Fix distcheck

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Our distcheck is broken. Well, it works but only by pure chance.
When wireshark plugin is enabled, we try to query which path
should the plugin be installed into. Firstly, we try to ask
pkg-config as some releases of wireshark already sets
corresponding variable in their pkg-config files. However, if we
obtained no value from there we try to construct the path on our
own. Based on our observations it usually is:
$libdir/wireshark/plugins/$version/.
Now, the problem is in the way we are deciding whether we have
obtained the plugin directory from pkg-config or not. Simply
said, we are checking wrong variable. The variable we are
checking has never been set, thus in our test is empty and
therefore we will always construct the plugin dir path on our
own, regardless of its presence in the pkg-config file.
To make things worse, after fixing this problem, VPATH build was
broken as it now tried to install plugin into correct directory.
Yes, this is problem, because --prefix was not honoured and
everything but the plugin was installed into given prefix. I've
managed to resolve this issue by replacing plugin dir prefix with
our own. So when doing regular installation (our prefix ==
wireshark prefix), nothing changes. When doing VPATH build &
installation plugin is installed into correctly prefixed dir.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2016-04-21 07:33:01 +02:00
parent 90bf5f5cb2
commit dc3002b46c
1 changed files with 7 additions and 1 deletions
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8
m4/virt-wireshark.m4
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@ -29,10 +29,16 @@ AC_DEFUN([LIBVIRT_CHECK_WIRESHARK],[
if test "x$with_wireshark_dissector" != "xno" ; then
if test "x$with_ws_plugindir" = "xcheck" ; then
plugindir="$($PKG_CONFIG --variable plugindir wireshark)"
if test "x$ws_plugindir" = "x" ; then
if test "x$plugindir" = "x" ; then
dnl On some systems the plugindir variable may not be stored within pkg config.
dnl Fall back to older style of constructing the plugin dir path.
plugindir="$libdir/wireshark/plugins/$($PKG_CONFIG --modversion wireshark)"
else
ws_prefix="$($PKG_CONFIG --variable prefix wireshark)"
if test "x$ws_prefix" = "x" ; then
ws_prefix="/usr";
fi
plugindir="${prefix}${plugindir#ws_prefix}"
fi
elif test "x$with_ws_plugindir" = "xno" || test "x$with_ws_plugindir" = "xyes"; then
AC_MSG_ERROR([ws-plugindir must be used only with valid path])