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make: skip pdwtags when building with CLang

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When building with CLang the structs that are emitted by pdwtags appear
in a completely different order than with GCC, which causes the
comparison against expected data to fail.

Ideally the test would not be sensitive to the ordering, because even
future GCC could cause changes, but that's not easy to fix. So for now
just skip the test when using clang.

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2018-02-28 14:38:20 +00:00
parent 6090a816ac
commit 900383f5b8
1 changed files with 9 additions and 1 deletions
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10
src/Makefile.am
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@ -664,8 +664,16 @@ struct_prefix = ($(libs_prefix)|$(other_prefix))
# remote/{,.libs/}libvirt_driver_remote_la-remote_protocol.o. We want
# the newest of the two, in case configure options changed and a stale
# file is left around from an earlier build.
# The pdwtags output is completely different when building with clang
# which causes the comparison against expected output to fail, so skip
# if using clang as CC.
PDWTAGS = \
$(AM_V_GEN)if (pdwtags --help) > /dev/null 2>&1; then \
$(AM_V_GEN)$CC -v 2>&1 | grep -q clang; \
if test $$? == 1; then \
echo 'WARNING: skipping pdwtags test with Clang' >&2; \
exit 0; \
fi; \
if (pdwtags --help) > /dev/null 2>&1; then \
o=`ls -t $(<:.lo=.$(OBJEXT)) \
$(subst /,/.libs/,$(<:.lo=.$(OBJEXT))) \
2>/dev/null | sed -n 1p`; \