Smoke [blead] v5.25.3-264-ga54d139 FAIL(F) linux - 4.6.0-1-amd64

[Dan Collins]

Automated smoke report for branch blead 5.25.4 patch 
a54d139f3c5753e3de93051a7a2c1190ed3e7615 v5.25.3-264-ga54d139
nightshade64: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (GenuineIntel 4008MHz) 
(x86_64/4 cpu[4 cores])
    on        linux - 4.6.0-1-amd64 [Debian GNU/Linux stretch/sid]
    using     ccache gcc-6 version 6.1.1 20160519
    smoketime 2 hours 57 minutes (average 14 minutes 47 seconds)

Summary: FAIL(F)

O = OK  F = Failure(s), extended report at the bottom
X = Failure(s) under TEST but not under harness
? = still running or test results not (yet) available
Build failures during:       - = unknown or N/A
c = Configure, m = make, M = make (after miniperl), t = make test-prep

v5.25.3-264-ga54d139  Configuration (common) -Dcc="ccache gcc-6"
----------- ---------------------------------------------------------
O O         
O O         -Duselongdouble
F F         -Dusequadmath
O O         -Dusethreads
O O         -Dusethreads -Duselongdouble
F F         -Dusethreads -Dusequadmath
| +--------- -DDEBUGGING
+----------- no debugging


Locally applied patches:
    SMOKEa54d139f3c5753e3de93051a7a2c1190ed3e7615

Tests skipped on user request:
    # One test name on a line
Failures: (common-args) -Dcc="ccache gcc-6"
[default] -Dusequadmath
[default] -DDEBUGGING -Dusequadmath
[default] -Dusethreads -Dusequadmath
[default] -DDEBUGGING -Dusethreads -Dusequadmath
    ../t/porting/libperl.t......................................FAILED
        26

Compiler messages(gcc):
op.c: In function ‘S_fold_constants’:
op.c:4387:23: warning: argument ‘o’ might be clobbered by ‘longjmp’ or 
‘vfork’ [-Wclobbered]
pp_ctl.c: In function ‘Perl_pp_goto’:
pp_ctl.c:2805:104: warning: self-comparison always evaluates to false 
[-Wtautological-compare]
inflate.c: In function ‘inflateUndermine’:
inflate.c:1487:9: warning: unused parameter ‘subvert’ [-Wunused-parameter]
inflate.c: In function ‘inflateMark’:
inflate.c:1507:51: warning: left shift of negative value 
[-Wshift-negative-value]
op.c:4387:72: warning: argument ‘o’ might be clobbered by ‘longjmp’ or 
‘vfork’ [-Wclobbered]
pp_ctl.c:2805:112: warning: self-comparison always evaluates to false 
[-Wtautological-compare]

Non-Fatal messages(gcc):



-- 
Report by Test::Smoke v1.70_02 running on perl 5.22.2
(Reporter v0.053 / Smoker v0.046)