The toolchain is not installed on the target when cross-compiling.
When testing, PERL_CORE is defined, so we need a real compiler check by ExtUtils::Builder.

Revert the commit https://github.com/Perl-Toolchain-Gang/ExtUtils-MakeMaker/commit/5e55318a97616596447c336b9cb331a8dfdc62d5
which was introduced by ExtUtils-MakeMaker 7.56 in perl 5.33.4

--- a/cpan/ExtUtils-MakeMaker/t/lib/MakeMaker/Test/Utils.pm
+++ b/cpan/ExtUtils-MakeMaker/t/lib/MakeMaker/Test/Utils.pm
@@ -359,8 +359,6 @@ Returns true if there is a compiler available for XS builds.
 =cut
 
 sub have_compiler {
-    return 1 if $ENV{PERL_CORE};
-
     my $have_compiler = 0;
 
     in_dir(sub {