testcases print warnings

[yurivict]

testc.c:857:11: warning: illegal character encoding in string literal [-Winvalid-source-encoding]
  x2("a<b><A5>С<BC><A5><B8><A5><E7><A5><F3><A4>Υ<C0><A5><A6><A5><F3><A5><ED><A1><BC><A5><C9><\\/b>", "a<b><A5>С<BC><A5><B8><A5><E7><A5><F3><A4>Υ<C0><A5><A6><A5><F3><A5><ED><A1><BC>...
          ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
testc.c:857:49: warning: illegal character encoding in string literal [-Winvalid-source-encoding]
  ..."a<b><A5>С<BC><A5><B8><A5><E7><A5><F3><A4>Υ<C0><A5><A6><A5><F3><A5><ED><A1><BC><A5><C9></b>", 0, 32);
          ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
testc.c:858:11: warning: illegal character encoding in string literal [-Winvalid-source-encoding]
  x2(".<b><A5>С<BC><A5><B8><A5><E7><A5><F3><A4>Υ<C0><A5><A6><A5><F3><A5><ED><A1><BC><A5><C9><\\/b>", "a<b><A5>С<BC><A5><B8><A5><E7><A5><F3><A4>Υ<C0><A5><A6><A5><F3><A5><ED><A1><BC>...
          ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
testc.c:858:49: warning: illegal character encoding in string literal [-Winvalid-source-encoding]
  ..."a<b><A5>С<BC><A5><B8><A5><E7><A5><F3><A4>Υ<C0><A5><A6><A5><F3><A5><ED><A1><BC><A5><C9></b>", 0, 32);
          ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
507 warnings generated.

Found on FreeBSD 11.

[kkos]

I think that it is probably caused by Japanese character code EUC_JP.
A good countermeasure was not found.
Please add IGNORE_EUC_JP flag to CFLAGS from version 6.4.0.
$ make CFLAGS="-O2 -DIGNORE_EUC_JP" test

[yurivict]

Ok, thanks, this helped.