tk: cleanup & add PACKAGECONFIG

Changes:
- add PACKAGECONFIG "xft" enables XFontConfig features
- add PACKAGECONFIG "xss" enables XScreenSaver extension
- use ${BPN} and ${PV}
- use ${VER} intermediate variable for readability
- fulfill LIC_FILES_CHKSUM
- remove BINCONFIG_GLOB: inherit binconfig is not present, lib/tkConfig.sh paths are valid
- add SSTATE_SCAN_FILES, like it is done in tcl recipe (OE-Core)

Note: tcl and tk are sharing the same licence, tcl licence file in commited in OE-Core.

Signed-off-by: Matthieu Crapet <Matthieu.Crapet@ingenico.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-devtools/tcltk/tk_8.6.0.bb

@@ -1,12 +1,24 @@
 SUMMARY = "Tool Command Language ToolKit Extension"
 HOMEPAGE = "http://tcl.sourceforge.net"
 SECTION = "devel/tcltk"
+
+# http://www.tcl.tk/software/tcltk/license.html
 LICENSE = "tcl"
-LIC_FILES_CHKSUM = "file://license.terms;md5=c88f99decec11afa967ad33d314f87fe"
+LIC_FILES_CHKSUM = "file://../license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../compat/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../doc/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../library/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../macosx/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../tests/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../unix/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../win/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+    file://../xlib/license.terms;md5=c88f99decec11afa967ad33d314f87fe \
+"
+
 DEPENDS = "tcl virtual/libx11 libxt"
 
 SRC_URI = "\
-    ${SOURCEFORGE_MIRROR}/tcl/tk${PV}-src.tar.gz \
+    ${SOURCEFORGE_MIRROR}/tcl/${BPN}${PV}-src.tar.gz \
     file://confsearch.diff;striplevel=2 \
     file://non-linux.diff;striplevel=2 \
     file://tklibrary.diff;striplevel=2 \
@@ -16,8 +28,12 @@ SRC_URI = "\
 SRC_URI[md5sum] = "b883a1a3c489c17413fb602a94bf54e8"
 SRC_URI[sha256sum] = "5c708b2b6f658916df59190b27750fa1ea2bc10992108e10f961c0700f058de6"
 
-S = "${WORKDIR}/tk${PV}/unix"
-LDFLAGS += "-Wl,-rpath,${libdir}/tcltk/8.6.0/lib"
+S = "${WORKDIR}/${BPN}${PV}/unix"
+
+# Short version format: "8.6"
+VER = "${@os.path.splitext(d.getVar('PV', True))[0]}"
+
+LDFLAGS += "-Wl,-rpath,${libdir}/tcltk/${PV}/lib"
 inherit autotools
 
 EXTRA_OECONF = "\
@@ -28,27 +44,33 @@ EXTRA_OECONF = "\
 "
 
 do_install_append() {
-    ln -sf libtk8.6.so ${D}${libdir}/libtk8.6.so.0
-    oe_libinstall -so libtk8.6 ${D}${libdir}
-    ln -sf wish8.6 ${D}${bindir}/wish
-	
+    ln -sf libtk${VER}.so ${D}${libdir}/libtk${VER}.so.0
+    oe_libinstall -so libtk${VER} ${D}${libdir}
+    ln -sf wish${VER} ${D}${bindir}/wish
+
     # Even after passing libdir=${libdir} at config, some incorrect dirs are still generated for the multilib build
     if [ "$libdir" != "/usr/lib" ]; then
         # Move files to correct library directory
-        mv ${D}/usr/lib/tk8.6/* ${D}/${libdir}/tk8.6/
+        mv ${D}/usr/lib/tk${VER}/* ${D}/${libdir}/tk${VER}/
         # Remove unneeded/incorrect dir ('usr/lib/')
         rm -rf ${D}/usr/lib
     fi
 }
 
+PACKAGECONFIG ??= "xft"
+PACKAGECONFIG[xft] = "--enable-xft,--disable-xft,xft"
+PACKAGECONFIG[xss] = "--enable-xss,--disable-xss,libxscrnsaver libxext"
+
 PACKAGES =+ "${PN}-lib"
 
-FILES_${PN}-lib = "${libdir}/libtk8.6.so*"
+FILES_${PN}-lib = "${libdir}/libtk${VER}.so*"
 FILES_${PN} += "${libdir}/tk*"
 
 # isn't getting picked up by shlibs code
 RDEPENDS_${PN} += "tk-lib"
 RDEPENDS_${PN}_class-native = ""
 
-BINCONFIG_GLOB = "*Config.sh"
 BBCLASSEXTEND = "native"
+
+# Fix the path in sstate
+SSTATE_SCAN_FILES += "*Config.sh"