[Bug 2354524] New: perl-Text-Kakasi-2.04-59.fc43 FTBFS: /usr/include/libkakasi.h:41:24: error: unknown type name ‘Character’

https://bugzilla.redhat.com/show_bug.cgi?id=2354524

Bug ID: 2354524
           Summary: perl-Text-Kakasi-2.04-59.fc43 FTBFS:
                    /usr/include/libkakasi.h:41:24: error: unknown type
                    name ‘Character’
           Product: Fedora
           Version: rawhide
               URL: https://koschei.fedoraproject.org/package/perl-Text-Ka
                    kasi
            Status: NEW
         Component: perl-Text-Kakasi
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail],
                    [e-mail], [e-mail]
            Blocks: 2339432 (F43FTBFS,RAWHIDEFTBFS)
  Target Milestone: ---
    Classification: Fedora

perl-Text-Kakasi-2.04-59.fc43 fails to build in Fedora 43:

gcc -c  -I/usr/local/include -D_REENTRANT -D_GNU_SOURCE -O2 -flto=auto
-ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall
-Wno-complain-wrong-lang -Werror=format-security
-Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection
-mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fwrapv
-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -O2 -flto=auto -ffat-lto-objects -fexceptions -g
-grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang
-Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3
-Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64
-march=x86-64 -mtune=generic -fasynchronous-unwind-tables
-fstack-clash-protection -fcf-protection -mtls-dialect=gnu2
-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer   -DVERSION="2.04"
-DXS_VERSION="2.04" -fPIC "-I/usr/lib64/perl5/CORE"  -DWAKATIGAKI Kakasi.c
In file included from Kakasi.xs:33:
/usr/include/libkakasi.h:41:24: error: unknown type name ‘Character’
   41 | void digest_start_copy(Character *, Character *);
      |                        ^~~~~~~~~
[...]

A difference between passing and failing build root is at
https://koschei.fedoraproject.org/build/19579547. An upgrade of kakasi-devel
from 2.3.6-29.fc41 to 2.3.6-31.fc42 looks suspicious.

Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=2339432
[Bug 2339432] Fedora 43 FTBFS Tracker