perl-WWW-Curl-4.17-42.fc43 fails to build in Fedora 43:

gcc -c  -I/usr/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=\"4.17\" -DXS_VERSION=\"4.17\" -fPIC "-I/usr/lib64/perl5/CORE"   Curl.c
[...]
curlopt-constants.c:44:63: error: ‘CURL_HAS_DECLSPEC_ATTRIBUTE’ undeclared (first use in this function)
   44 |             if (strEQ(name, "HAS_DECLSPEC_ATTRIBUTE")) return CURL_HAS_DECLSPEC_ATTRIBUTE;
      |                                                               ^~~~~~~~~~~~~~~~~~~~~~~~~~~

A difference between passing and failing build root is at <https://koschei.fedoraproject.org/build/20062692>. An upgrade of libcurl-devel from 8.12.1-1.fc43 to 8.13.0~rc1-2.fc43 looks suspicious.
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