qt4: fix debug symbol stripping

Adds a patch imported from Debian to not strip the executables as part
of the Qt build process. This fixes the warnings shown at packaging
stage as well as the content of the debug symbol packages.

(From OE-Core rev: c2f6dc09a7663f69308558553be9420df3a81b6b)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-qt/qt4/files/add_nostrip_for_debug_packages.diff

@@ -0,0 +1,23 @@
+author: Fathi Boudra <fabo@debian.org>
+
+Qt is built in release mode and strip files by default.
+Set CONFIG+=nostrip to avoid the stripping and
+let dh_strip do it to generate debug packages.
+
+Upstream-Status: Inappropriate [Configuration]
+
+---
+ configure |    2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/configure
++++ b/configure
+@@ -627,6 +627,8 @@ mkdir -p "$outpath/config.tests"
+ rm -f "$outpath/config.tests/.qmake.cache"
+ cp "$QMAKE_VARS_FILE" "$outpath/config.tests/.qmake.cache"
+ 
++QMakeVar add CONFIG nostrip
++
+ QMakeVar add styles "cde mac motif plastique cleanlooks windows"
+ QMakeVar add decorations "default windows styled"
+ QMakeVar add mouse-drivers "pc"

meta/recipes-qt/qt4/qt-4.7.4.inc

@@ -14,6 +14,7 @@ SRC_URI = "http://get.qt.nokia.com/qt/source/qt-everywhere-opensource-src-${PV}.
            file://0001-Added-Openembedded-crossarch-option.patch \
            file://blacklist-diginotar-certs.diff \
            file://fix-translations.patch \
+           file://add_nostrip_for_debug_packages.diff \
            file://g++.conf \
            file://linux.conf \
            file://fix-qtbug-20925.patch \

meta/recipes-qt/qt4/qt4-embedded_4.7.4.bb

@@ -1,7 +1,7 @@
 require qt-${PV}.inc
 require qt4-embedded.inc
 
-PR = "${INC_PR}.3"
+PR = "${INC_PR}.4"
 
 QT_CONFIG_FLAGS_append_armv6-vfp = " -no-neon "
 

meta/recipes-qt/qt4/qt4-x11-free_4.7.4.bb

@@ -1,7 +1,7 @@
 require qt4-x11-free.inc
 require qt-${PV}.inc
 
-PR = "${INC_PR}.3"
+PR = "${INC_PR}.4"
 
 QT_CONFIG_FLAGS_append_armv6-vfp = " -no-neon "