Bug#896828: perl: FTBFS on ia64: t/op/sprintf2.t failure

Niko Tyni <[email protected]>
Newsgroups gmane.linux.debian.ports.ia64
Message-ID <20180424170504.GA15003__6712.96185250885$1524589640$gmane$org@estella.local.invalid>
Package: perl
Version: 5.26.2-2
X-Debbugs-Cc: [email protected]

This package failed to build on ia64.

  t/op/sprintf2 .................................................. # Failed test 1492 - subnormal 0x1.fffffffffffffp-1022 %a 0x1.fffffffffffffp-1022 got 0x0p+0 at op/sprintf2.t line 812
  #      got "0x0p+0"
  # expected "0x1.fffffffffffffp-1022"
  # Failed test 1493 - subnormal 0x0.fffffffffffffp-1022 %a 0x1.ffffffffffffep-1023 got 0x0p+0 at op/sprintf2.t line 812
  #      got "0x0p+0"
  # expected "0x1.ffffffffffffep-1023"
  # Failed test 1494 - subnormal 0x0.7ffffffffffffp-1022 %a 0x1.ffffffffffffcp-1024 got 0x0p+0 at op/sprintf2.t line 812
  #      got "0x0p+0"
  # expected "0x1.ffffffffffffcp-1024"
  # Failed test 1495 - subnormal 0x0.3ffffffffffffp-1022 %a 0x1.ffffffffffff8p-1025 got 0x0p+0 at op/sprintf2.t line 812
  #      got "0x0p+0"
  # expected "0x1.ffffffffffff8p-1025"
  # Failed test 1496 - subnormal 0x0.1ffffffffffffp-1022 %a 0x1.ffffffffffffp-1026 got 0x0p+0 at op/sprintf2.t line 812
  #      got "0x0p+0"
  # expected "0x1.ffffffffffffp-1026"
  # Failed test 1497 - subnormal 0x0.0ffffffffffffp-1022 %a 0x1.fffffffffffep-1027 got 0x0p+0 at op/sprintf2.t line 812
  #      got "0x0p+0"
  # expected "0x1.fffffffffffep-1027"
  FAILED at test 1492

  [...]

  Failed 1 test out of 2455, 99.96% okay.
	  op/sprintf2.t
  
This regressed between 5.26.1-5 and 5.26.1-6, but I doubt the source
changes between those caused it. A toolchain regression seems more likely,
but I haven't tested this in any way.

@debian-ia64: would you please look into it?
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