python3: Remove problematic paths from sysroot files

In the native sysroot we should never have paths to the python3-native
build directory. These may or may not exist at the time some dependency
is building and nothing should rely upon them.

I suspect nothing is relying on this at the moment but clean up
just to be sure.

The various config copies are adjusted to be modified consistently as some
copies were and some were not. The Makefile has the "bad" ${B} paths
replaced with a dummy placeholder too.

(From OE-Core rev: ae9e6249ded8fc063d6333231c391cfa2d594567)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3_3.10.4.bb

@@ -165,6 +165,9 @@ do_install:append:class-native() {
         # tarballs and sysroot creation.
         find ${D} -name *.pyc -delete
 
+        # Nothing should be looking into ${B} for python3-native
+        sed -i -e 's:${B}:/build/path/unavailable/:g' \
+                ${D}/${libdir}/python${PYTHON_MAJMIN}/config-${PYTHON_MAJMIN}${PYTHON_ABI}*/Makefile
 }
 
 do_install:append() {
@@ -175,15 +178,16 @@ do_install:append() {
 
         mkdir -p ${D}${libdir}/python-sysconfigdata
         sysconfigfile=`find ${D} -name _sysconfig*.py`
-        cp $sysconfigfile ${D}${libdir}/python-sysconfigdata/_sysconfigdata.py
-
         sed -i  \
                 -e "s,^ 'LIBDIR'.*, 'LIBDIR': '${STAGING_LIBDIR}'\,,g" \
                 -e "s,^ 'INCLUDEDIR'.*, 'INCLUDEDIR': '${STAGING_INCDIR}'\,,g" \
                 -e "s,^ 'CONFINCLUDEDIR'.*, 'CONFINCLUDEDIR': '${STAGING_INCDIR}'\,,g" \
                 -e "/^ 'INCLDIRSTOMAKE'/{N; s,/usr/include,${STAGING_INCDIR},g}" \
                 -e "/^ 'INCLUDEPY'/s,/usr/include,${STAGING_INCDIR},g" \
-                ${D}${libdir}/python-sysconfigdata/_sysconfigdata.py
+                -e "s,${B},/build/path/unavailable/,g" \
+                $sysconfigfile
+        cp $sysconfigfile ${D}${libdir}/python-sysconfigdata/_sysconfigdata.py
+
 
         # Unfortunately the following pyc files are non-deterministc due to 'frozenset'
         # being written without strict ordering, even with PYTHONHASHSEED = 0