This PR fixes issues on s390x

[velemas]

This PR fixes issue #136
and breakage introduced by commit 5980ef9 seen in
kubernetes/ingress-nginx#6504 on s390x.

Signed-off-by: Artiom Vaskov artiom.vaskov@ibm.com

[zhuizhuhaomeng]

This PR fixes issue #136 and breakage introduced by commit 5980ef9 seen in kubernetes/ingress-nginx#6504 on s390x.

Signed-off-by: Artiom Vaskov artiom.vaskov@ibm.com

@velemas would you please add s390 for ci just like https://github.com/openresty/luajit2/pull/137/files?
only one line code is needed.

[velemas]

@zhuizhuhaomeng i will but before that it needs additional s390x fixes for changes introduced in commits c6f5ef6 and bb0f241 (table traversal).
I am preparing updates to allow s390x to pass all the tests from luajit2-test-suite with new table traversal.

[velemas]

@zhuizhuhaomeng sorry, i accidentally removed my fork, i will close this PR and create a new one with all the changes to pass the tests and CI enabled.
New PR #144

[velemas]

This PR fixes issue #136 and breakage introduced by commit 5980ef9 seen in kubernetes/ingress-nginx#6504 on s390x.
Signed-off-by: Artiom Vaskov artiom.vaskov@ibm.com

@velemas would you please add s390 for ci just like https://github.com/openresty/luajit2/pull/137/files? only one line code is needed.

Actually i see another exception for archs other than amd64 (currently only arm64):
if [ ${TRAVIS_CPU_ARCH} != "arm64" ]; then PATH=/opt/luajit21/bin:$PATH prove -I. t; fi