qt4: allow recipes building commercial edition

To enable building the commercial edition of Qt (through additional
recipes that are *not* provided by OE-Core) we need to tweak a few
things:

* Don't make recipes that inherit qt4x11.bbclass depend on qt4-x11-free
  - instead add qt4-x11 to DEPENDS and then have qt4-x11-free include
  this in its PROVIDES. A commercial equivalent recipe should do the
  same.
* Add a QT_LICENSE_FILE variable that can be used to specify the license
  file required by the commercial edition.
* Add a QT_LICENSE_FLAGS variable which the recipe can set to select the
  license option being used. The default of "-opensource" retains the
  current behaviour; a commercial recipe should set it to "-commercial".

Fixes [YOCTO #2505].

(From OE-Core rev: 2be0058fc4acddab611637656183accd052b40eb)

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

meta/classes/qt4x11.bbclass

@@ -1,4 +1,4 @@
-DEPENDS_prepend = "${@["qt4-x11-free ", ""][(d.getVar('BPN', True)[:12] == 'qt4-x11-free')]}"
+DEPENDS_prepend = "${@base_contains("PROVIDES", "qt4-x11", "", "qt4-x11 ", d)}"
 
 inherit qmake2
 

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

@@ -2,7 +2,7 @@ DESCRIPTION = "Qt is a versatile cross-platform application framework -- this is
 SECTION = "libs"
 HOMEPAGE = "http://qt.nokia.com"
 DEPENDS += "directfb tslib"
-INC_PR = "r46"
+INC_PR = "r47"
 
 QT_BASE_LIB  ?= "libqt-embedded"
 

meta/recipes-qt/qt4/qt4-x11-free.inc

@@ -4,8 +4,9 @@ DESCRIPTION = "Qt is a versatile cross-platform application framework -- this is
 HOMEPAGE = "http://qt.nokia.com"
 SECTION = "x11/libs"
 DEPENDS += "virtual/libgl virtual/libx11 fontconfig libxft libxext libxrender libxrandr libxcursor"
+PROVIDES += "qt4-x11"
 
-INC_PR = "r44"
+INC_PR = "r45"
 
 QT_GLFLAGS ?= "${@base_contains('DISTRO_FEATURES', 'opengl', '-opengl', '-no-opengl', d)} "
 QT_GLFLAGS_qemux86 = "-opengl"

meta/recipes-qt/qt4/qt4.inc

@@ -192,6 +192,10 @@ FILES_${QT_BASE_NAME}-xmlpatterns-dbg      = "${bindir}/.debug/xmlpatterns*"
 FILES_${QT_BASE_NAME}-qml-plugins          = "${libdir}/${QT_DIR_NAME}/imports/* ${libdir}/${QT_DIR_NAME}/plugins/qmltooling/*"
 FILES_${QT_BASE_NAME}-qml-plugins-dbg      = "${libdir}/${QT_DIR_NAME}/imports/*/*/*/.debug/* ${libdir}/${QT_DIR_NAME}/imports/*/.debug ${libdir}/${QT_DIR_NAME}/plugins/qmltooling/.debug"
 
+# License options, to be set by the recipe if different values are needed
+QT_LICENSE_FILE ?= ""
+QT_LICENSE_FLAGS ?= "-opensource"
+
 do_configure() {
 	unset QMAKESPEC
 	unset QTDIR
@@ -231,7 +235,7 @@ do_configure() {
 
 	${EXTRA_QMAKE_MUNGE}|| true
 
-	(echo o; echo yes) | ./configure -v \
+	echo yes | QT_LICENSE_FILE="${QT_LICENSE_FILE}" ./configure -v \
 			-prefix ${prefix}/ \
 			-bindir ${bindir} \
 			-libdir ${libdir} \
@@ -248,6 +252,7 @@ do_configure() {
 			-xplatform ${TARGET_OS}-oe-g++ \
 			${QT_ENDIAN} \
 			-crossarch ${QT_ARCH} \
+			${QT_LICENSE_FLAGS} \
 			${QT_CONFIG_FLAGS} -no-fast \
 			-L${STAGING_LIBDIR} -I${STAGING_INCDIR} \
 			-I${STAGING_INCDIR}/freetype2