Remove temp dirs workaround for raptor builds only

Webkit cannot build because of too long command lines in the sbsv2 config.
There is an alternative workaround in raptor for the relative include paths
problem, i.e. "sbs -c winscw_udeb.mwccinc"
Removing the temp dirs from being created and added to systeminclude makes the
command line short enough again that webkit can be compiled.

Reviewed-By: Miikka Heikkinen

Based on following commit from the no-tmp-dirs branch:

commit 33e8c420bb40ca6194d29f96ef2fbd0f18340e6b
Author: Iain <qt-info@nokia.com>
Date:   Wed Oct 7 13:45:48 2009 +0200

    First attempt at removing the tmp dirs workaround on Symbian OS

    I may not have caught all the places where it is used, but MMP files
    look OK afterwards.

    TODO: Slightly concerned that I've trimmed too much from the abld generator
    as I think that the bit I cut was also used for other temp dirs

1 files changed, 14 insertions, 0 deletions

diff --git a/qmake/generators/symbian/symmake_abld.cpp b/qmake/generators/symbian/symmake_abld.cpp
index 4d1673b..1b5464f 100644
--- a/qmake/generators/symbian/symmake_abld.cpp
+++ b/qmake/generators/symbian/symmake_abld.cpp
@@ -450,3 +450,17 @@ void SymbianAbldMakefileGenerator::writeBldInfMkFilePart(QTextStream& t, bool ad
         t << "gnumakefile " << gnuMakefileName << endl;
     }
 }
+
+void SymbianAbldMakefileGenerator::appendAbldTempDirs(QStringList& sysincspaths, QString includepath)
+{
+    // As a workaround for Symbian toolchain insistence to treat include
+    // statements as relative to source file rather than the file they appear in,
+    // we generate extra temporary include directories to make
+    // relative include paths used in various headers to work properly.
+    // Note that this is not a fix-all solution; it's just a stop-gap measure
+    // to make Qt itself build until toolchain can support relative includes in
+    // a way that Qt expects.
+    QString epocPath("epoc32");
+    if (!includepath.contains(epocPath)) // No temp dirs for epoc includes
+        appendIfnotExist(sysincspaths, includepath + QString("/" QT_EXTRA_INCLUDE_DIR));
+}