broken in some 5.8.8 configs

[exodist]

Perl 5.8.8 with long-double support on Ubuntu 1604:

[2017/01/11 23:07:20.696] t/HashBase.t ......... ok
[2017/01/11 23:07:20.783]         #
[2017/01/11 23:07:20.783]         # Failed test 'Support for unicode characters that use multiple columns'
[2017/01/11 23:07:20.783]         # at t/Table.t line 36.
[2017/01/11 23:07:20.783]         # $VAR1 = [
[2017/01/11 23:07:20.783]         #           '+------+-----------+',
[2017/01/11 23:07:20.783]         #           '| a    | b         |',
[2017/01/11 23:07:20.783]         #           '+------+-----------+',
[2017/01/11 23:07:20.783]         #           "| a\x{5a67}b | \\N{U+7C3} |",
[2017/01/11 23:07:20.783]         #           '+------+-----------+'
[2017/01/11 23:07:20.783]         #         ];
[2017/01/11 23:07:20.783]         # $VAR1 = [
[2017/01/11 23:07:20.783]         #           '+------+---+',
[2017/01/11 23:07:20.783]         #           '| a    | b |',
[2017/01/11 23:07:20.783]         #           '+------+---+',
[2017/01/11 23:07:20.783]         #           "| a\x{5a67}b | \x{7c3} |",
[2017/01/11 23:07:20.783]         #           '+------+---+'
[2017/01/11 23:07:20.783]         #         ];
[2017/01/11 23:07:20.783]     #
[2017/01/11 23:07:20.783]     # Failed test 'with_unicode_linebreak'
[2017/01/11 23:07:20.783]     # at t/Table.t line 47.
[2017/01/11 23:07:20.784] #
[2017/01/11 23:07:20.784] # Failed test 'unicode_display_width'
[2017/01/11 23:07:20.784] # at t/Table.t line 48.
[2017/01/11 23:07:20.823] t/Table.t ............
[2017/01/11 23:07:20.823] Dubious, test returned 1 (wstat 256, 0x100)
[2017/01/11 23:07:20.823] Failed 1/7 subtests

[xdg]

ubuntu@ip-10-156-47-200:~$ perl -V
Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
  Platform:
    osname=linux, osvers=4.4.0-21-generic, archname=x86_64-linux-ld
    uname='linux ip-10-178-208-224 4.4.0-21-generic #37-ubuntu smp mon apr 18 18:33:37 utc 2016 x86_64 x86_64 x86_64 gnulinux '
    config_args='-Dprefix=/opt/perl/8.8ld -de -Dusemorebits -Doptimize=-g -A'eval:scriptdir=/opt/perl/8.8ld/bin''
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=define use64bitall=define uselongdouble=define
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-DDEBUGGING -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-g',
    cppflags='-DDEBUGGING -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include'
    ccversion='', gccversion='5.4.0 20160609', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='long double', nvsize=16, Off_t='off_t', lseeksize=8
    alignbytes=16, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /usr/lib
    libs=-lnsl -ldb -ldl -lm -lcrypt -lutil -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
    libc=libc-2.23.so, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.23'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: DEBUGGING PERL_MALLOC_WRAP USE_64_BIT_ALL
                        USE_64_BIT_INT USE_LARGE_FILES USE_LONG_DOUBLE
                        USE_PERLIO
  Locally applied patches:
        Devel::PatchPerl 1.46
  Built under linux
  Compiled at Dec 23 2016 00:29:49
  %ENV:
    PERLPATH="/opt/perl/8.8ld/bin"
  @INC:
    /opt/perl/8.8ld/lib/5.8.8/x86_64-linux-ld
    /opt/perl/8.8ld/lib/5.8.8
    /opt/perl/8.8ld/lib/site_perl/5.8.8/x86_64-linux-ld
    /opt/perl/8.8ld/lib/site_perl/5.8.8
    /opt/perl/8.8ld/lib/site_perl
    .

[xdg]

Context: This is a custom-compiled 5.8.8 for testing purposes. All dependencies get installed into a local library directory. The failure occurred during the process of building dependencies into the local library. I ran the same invocation of cpanm, but only installing Term::Table and got the same failure. See this build log gist for details of everything installed prior to the failure.

Let me know if there's other info I can provide to help debug.

[exodist]

Does it only happen with the most recent version? or does it happen with all versions?

[xdg]

Yes. Fails with all versions back to 0.001.

[xdg]

I checked our CI system and it's not specific to long-double either. Bog standard 5.8.8 also fails the same way.

[rjbs]

I still see this problem on my v5.8.8 production environment.