Bug#784432: FTBS when build under /usr

[Sjoerd Simons <sjoerd@debian.org>]

Source: qtwebkit
Version: 2.3.4.dfsg-3
Severity: normal
Tags: patch

Hey,

When building qtwebkit in a directory under /usr (e.g. /usr/src) the following
compiler error occurs:

In file included from /usr/src/packages/BUILD/qtwebkit-2.3.4.dfsg/Source/WebKit/qt/declarative/qdeclarativewebview_p.h:29:0,
                 from /usr/src/packages/BUILD/qtwebkit-2.3.4.dfsg/Source/WebKit/qt/declarative/qdeclarativewebview.cpp:21:
../../../../include/QtWebKit/qgraphicswebview.h:1:81: fatal error: ../../../../../../../../../../Source/WebKit/qt/Api/qgraphicswebview.h: No such file or directory
 #include "../../../../../../../../../../Source/WebKit/qt/Api/qgraphicswebview.h"
                                                                                 ^
compilation terminated.

This turns out to be because syncqt-4.8 generated incorrect relative paths due
 to this section of code:

sub fixPaths {
       my ($file, $dir) = @_;
       $dir =~ s=^$quoted_basedir/=$out_basedir/= if(!($basedir eq $out_basedir));

dir being the full path to the source files, basedir /usr, when dir doesn't
start with /usr this is a noop, but if it is the /usr part gets replaced and
things break...

Patch attached to fix this

--- a/Tools/qmake/syncqt-4.8
+++ b/Tools/qmake/syncqt-4.8
@@ -353,7 +353,6 @@
 ######################################################################
 sub fixPaths {
     my ($file, $dir) = @_;
-    $dir =~ s=^$quoted_basedir/=$out_basedir/= if(!($basedir eq $out_basedir));
     $file =~ s=\\=/=g;
     $dir =~ s=\\=/=g;