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externalsrc: use shared CONFIGURESTAMPFILE if B=S 

External source tree is used as the builddir even for different
architectures in case ${B}=${S}. This may cause problems if MACHINE is
changed as do_configure is not being re-run (which would run make
clean). This patches changes externalsrc to use a common (per-recipe)
CONFIGURESTAMPFILE under 'work-shared' if ${B}=${S}. In addition,
do_configure will depend on changes of this stamp file. As a result,
do_configure is re-run and the build dir is cleaned correctly if a
rebuild for different MACHINE is done.

[YOCTO #8950]

(From OE-Core rev: f44f12af346888bdeb3ae01a275cb5dd4396b505)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Markus Lehtonen 2016-01-29 17:04:31 +02:00 committed by Richard Purdie
parent c6b8227083
commit c43da12333
1 changed files with 11 additions and 0 deletions
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11
meta/classes/externalsrc.bbclass
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@ -85,6 +85,17 @@ python () {
# Ensure compilation happens every time
d.setVarFlag('do_compile', 'nostamp', '1')
# If B=S the same builddir is used even for different architectures.
# Thus, use a shared CONFIGURESTAMPFILE so that change of do_configure
# task hash is correctly detected if e.g. MACHINE changes. In addition,
# do_configure needs to depend on the stamp file so that the task is
# re-run when the stamp was changed since the last run on this
# architecture.
if d.getVar('S', True) == d.getVar('B', True):
configstamp = '${TMPDIR}/work-shared/${PN}/${EXTENDPE}${PV}-${PR}/configure.sstate'
d.setVar('CONFIGURESTAMPFILE', configstamp)
d.setVarFlag('do_configure', 'file-checksums', configstamp + ':True')
}
python externalsrc_compile_prefunc() {