我有一台无法找到HTML :: Entities的Mac，运行命令perl -V:'installsitehtml'给出了installsitehtml='UNKNOWN';。当ls ~/时，我看到一个perl5/，我猜它是由NCBI的 edirect软件包安装的。你知道我该怎么解决吗？
我尝试安装模块和一些可能有用的调试信息：
$ perl -MHTML::Entities -e1
Can't locate HTML/Entities.pm in @INC (you may need to install the HTML::Entities module) (@INC contains: /Users/aerijman/miniconda3/lib/site_perl/5.26.2/darwin-thread-multi-2level /Users/aerijman/miniconda3/lib/site_perl/5.26.2 /Users/aerijman/miniconda3/lib/5.26.2/darwin-thread-multi-2level /Users/aerijman/miniconda3/lib/5.26.2 .).
BEGIN failed--compilation aborted.
$ cpan HTML::Entities
Loading internal null logger. Install Log::Log4perl for logging messages
Reading '/Users/aerijman/.cpan/Metadata'
Database was generated on Sat, 27 Apr 2019 15:17:03 GMT
Running install for module 'HTML::Entities'
Checksum for /Users/aerijman/.cpan/sources/authors/id/G/GA/GAAS/HTML-Parser-3.72.tar.gz ok
Configuring G/GA/GAAS/HTML-Parser-3.72.tar.gz with Makefile.PL
Checking if your kit is complete...
Looks good
Generating a Unix-style Makefile
Writing Makefile for HTML::Parser
Writing MYMETA.yml and MYMETA.json
GAAS/HTML-Parser-3.72.tar.gz
/Users/aerijman/miniconda3/bin/perl Makefile.PL -- OK
Running make for G/GA/GAAS/HTML-Parser-3.72.tar.gz
cp lib/HTML/Entities.pm blib/lib/HTML/Entities.pm
cp lib/HTML/LinkExtor.pm blib/lib/HTML/LinkExtor.pm
cp lib/HTML/TokeParser.pm blib/lib/HTML/TokeParser.pm
cp lib/HTML/Filter.pm blib/lib/HTML/Filter.pm
cp lib/HTML/HeadParser.pm blib/lib/HTML/HeadParser.pm
cp Parser.pm blib/lib/HTML/Parser.pm
cp lib/HTML/PullParser.pm blib/lib/HTML/PullParser.pm
Running Mkbootstrap for Parser ()
chmod 644 "Parser.bs"
"/Users/aerijman/miniconda3/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- Parser.bs blib/arch/auto/HTML/Parser/Parser.bs 644
"/Users/aerijman/miniconda3/bin/perl" "/Users/aerijman/miniconda3/lib/site_perl/5.26.2/ExtUtils/xsubpp" -typemap '/Users/aerijman/miniconda3/lib/5.26.2/ExtUtils/typemap' -typemap '/Users/aerijman/.cpan/build/HTML-Parser-3.72-11/typemap' Parser.xs > Parser.xsc
mv Parser.xsc Parser.c
"/Users/aerijman/miniconda3/bin/perl" mkhctype >hctype.h
"/Users/aerijman/miniconda3/bin/perl" mkpfunc >pfunc.h
x86_64-apple-darwin13.4.0-clang -c -fno-common -DPERL_DARWIN -no-cpp-precomp -mmacosx-version-min=10.9 -fno-strict-aliasing -pipe -fstack-protector-strong -DPERL_USE_SAFE_PUTENV -O3 -DVERSION=\"3.72\" -DXS_VERSION=\"3.72\" -fPIC --sysroot=/opt/MacOSX10.9.sdk "-I/Users/aerijman/miniconda3/lib/5.26.2/darwin-thread-multi-2level/CORE" -DMARKED_SECTION Parser.c
/bin/sh: x86_64-apple-darwin13.4.0-clang: command not found
make: *** [Parser.o] Error 127
GAAS/HTML-Parser-3.72.tar.gz
/usr/bin/make -- NOT OK
$ perl -le'print $^X'
Users/aerijman/miniconda3/bin/perl
$ perl -le'print for @INC;'
/Users/aerijman/miniconda3/lib/site_perl/5.26.2/darwin-thread-multi-2level
/Users/aerijman/miniconda3/lib/site_perl/5.26.2
/Users/aerijman/miniconda3/lib/5.26.2/darwin-thread-multi-2level
/Users/aerijman/miniconda3/lib/5.26.2
.
$ perl -le'print "$_: $ENV{$_}" for sort grep /^PERL/, keys %ENV;'
$ type cpan
cpan is /Users/aerijman/miniconda3/bin/cpan
$ head -n 1 "$( which cpan )"
#!/Users/aerijman/miniconda3/bin/perl
$ echo 'o conf' | cpan 2>&1 | perl -ne'print if /^\s*(make|mbuild)/'
make [/usr/bin/make]
make_arg []
make_install_arg []
make_install_make_command [/usr/bin/make]
makepl_arg []
mbuild_arg []
mbuild_install_arg []
mbuild_install_build_command [./Build]
mbuildpl_arg []