I tried to install a new Perl in the home directory of the older machine. I did:

wget http://www.cpan.org/src/5.0/perl-5.26.1.tar.gz
tar xzf perl-5.26.1.tar.gz
cd perl-5.26.1
./Configure -des -Dprefix=$HOME/localperl
make
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'make' generated a lot of (probably uninteresting) output, and eventually failed becasue of:

sv.o: In function `S_hextract':
sv.c:(.text+0xe11): undefined reference to `Perl_fp_class_denorm'
collect2: ld returned 1 exit status
make: *** [lib/buildcustomize.pl] Error 1
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What is going on?