I've just replaced my laptop. I've gone from Kubuntu 14.04 with perl 5.18 to Kubuntu 17.04 with perl 5.24. I had a script that I'd been using without problems fer several years, but now I can't get the packages it depends on to compile. The script itself can be seen here.

I've just set this machine up from a blank hard drive and an ISO yesterday, and one of the first things I did was to install all the modules being used, but there seem to be problems with cURL and XML that I can't get to the bottom of. When I run it, I see this:

$ ./scripts/podcasts/podcasts.pl 
Can't locate Net/Curl/Easy.pm in @INC (you may need to install the Net
+::Curl::Easy module) (@INC contains: /etc/perl /usr/local/lib/x86_64-
+linux-gnu/perl/5.24.1 /usr/local/share/perl/5.24.1 /usr/lib/x86_64-li
+nux-gnu/perl5/5.24 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.
+24 /usr/share/perl/5.24 /usr/local/lib/site_perl /usr/lib/x86_64-linu
+x-gnu/perl-base) at ./scripts/podcasts/podcasts.pl line 11.
BEGIN failed--compilation aborted at ./scripts/podcasts/podcasts.pl li
+ne 11.
[download]

If I comment out Net::Curl::Easy and replace it with WWW::Curl::Easy, I get this:

$ ./scripts/podcasts/podcast.pl
Use of uninitialized value in subroutine entry at /usr/local/share/per
+l/5.24.1/Role/Tiny.pm line 461.
Can't call method "_attrs" on an undefined value at /usr/local/share/p
+erl/5.24.1/Specio/OO.pm line 168.
Compilation failed in require at /usr/local/share/perl/5.24.1/Specio/D
+eclare.pm line 11.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.24.1/Spec
+io/Declare.pm line 11.
Compilation failed in require at /usr/local/lib/x86_64-linux-gnu/perl/
+5.24.1/DateTime/Types.pm line 12.
BEGIN failed--compilation aborted at /usr/local/lib/x86_64-linux-gnu/p
+erl/5.24.1/DateTime/Types.pm line 12.
Compilation failed in require at /usr/local/lib/x86_64-linux-gnu/perl/
+5.24.1/DateTime/Duration.pm line 12.
BEGIN failed--compilation aborted at /usr/local/lib/x86_64-linux-gnu/p
+erl/5.24.1/DateTime/Duration.pm line 12.
Compilation failed in require at /usr/local/lib/x86_64-linux-gnu/perl/
+5.24.1/DateTime.pm line 14.
BEGIN failed--compilation aborted at /usr/local/lib/x86_64-linux-gnu/p
+erl/5.24.1/DateTime.pm line 14.
Compilation failed in require at /usr/local/share/perl/5.24.1/DateTime
+/Format/Mail.pm line 7.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.24.1/Date
+Time/Format/Mail.pm line 7.
Compilation failed in require at /usr/local/share/perl/5.24.1/XML/RSS/
+Private/Output/Base.pm line 9.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.24.1/XML/
+RSS/Private/Output/Base.pm line 9.
Compilation failed in require at /usr/local/share/perl/5.24.1/XML/RSS.
+pm line 9.
BEGIN failed--compilation aborted at /usr/local/share/perl/5.24.1/XML/
+RSS.pm line 9.
Compilation failed in require at ./scripts/podcasts/podcasts.pl line 1
+8.
BEGIN failed--compilation aborted at ./scripts/podcasts/podcasts.pl li
+ne 18.
[download]

Trying to install the packages, I see:

$ cpan install Net::Curl::Easy
Reading '/home/ross/.cpan/Metadata'
  Database was generated on Wed, 19 Apr 2017 22:53:51 GMT
Running install for module 'Net::Curl::Easy'
Running make for S/SY/SYP/Net-Curl-0.37.tar.gz
Checksum for /home/ross/.cpan/sources/authors/id/S/SY/SYP/Net-Curl-0.3
+7.tar.gz ok

  CPAN.pm: Building S/SY/SYP/Net-Curl-0.37.tar.gz

Found libcurl version 7.52.1
Reading /usr/include/x86_64-linux-gnu/curl/curl.h (cc -E -I/usr/includ
+e/x86_64-linux-gnu /usr/include/x86_64-linux-gnu/curl/curl.h)
Reading /usr/include/x86_64-linux-gnu/curl/multi.h (cc -E -I/usr/inclu
+de/x86_64-linux-gnu /usr/include/x86_64-linux-gnu/curl/multi.h)
CURLE_HTTP2_STREAM unexpected
CURLE_SSL_INVALIDCERTSTATUS unexpected
CURLE_WEIRD_SERVER_REPLY unexpected
CURLFORM_CONTENTLEN unexpected
CURLINFO_ACTIVESOCKET unexpected
CURLINFO_HTTP_VERSION unexpected
CURLINFO_PROTOCOL unexpected
CURLINFO_PROXY_SSL_VERIFYRESULT unexpected
CURLINFO_SCHEME unexpected
CURLINFO_SOCKET unexpected
CURLINFO_TLS_SSL_PTR unexpected
CURLMOPT_PUSHDATA unexpected
CURLMOPT_PUSHFUNCTION unexpected
CURLOPTTYPE_STRINGPOINT unexpected
CURLOPT_CONNECT_TO unexpected
CURLOPT_DEFAULT_PROTOCOL unexpected
CURLOPT_KEEP_SENDING_ON_ERROR unexpected
CURLOPT_PATH_AS_IS unexpected
CURLOPT_PIPEWAIT unexpected
CURLOPT_PRE_PROXY unexpected
CURLOPT_PROXY_CAINFO unexpected
CURLOPT_PROXY_CAPATH unexpected
CURLOPT_PROXY_CRLFILE unexpected
CURLOPT_PROXY_KEYPASSWD unexpected
CURLOPT_PROXY_PINNEDPUBLICKEY unexpected
CURLOPT_PROXY_SERVICE_NAME unexpected
CURLOPT_PROXY_SSLCERT unexpected
CURLOPT_PROXY_SSLCERTTYPE unexpected
CURLOPT_PROXY_SSLKEY unexpected
CURLOPT_PROXY_SSLKEYTYPE unexpected
CURLOPT_PROXY_SSLVERSION unexpected
CURLOPT_PROXY_SSL_CIPHER_LIST unexpected
CURLOPT_PROXY_SSL_OPTIONS unexpected
CURLOPT_PROXY_SSL_VERIFYHOST unexpected
CURLOPT_PROXY_SSL_VERIFYPEER unexpected
CURLOPT_PROXY_TLSAUTH_PASSWORD unexpected
CURLOPT_PROXY_TLSAUTH_TYPE unexpected
CURLOPT_PROXY_TLSAUTH_USERNAME unexpected
CURLOPT_SERVICE_NAME unexpected
CURLOPT_SSL_FALSESTART unexpected
CURLOPT_SSL_VERIFYSTATUS unexpected
CURLOPT_STREAM_DEPENDS unexpected
CURLOPT_STREAM_DEPENDS_E unexpected
CURLOPT_STREAM_WEIGHT unexpected
CURLOPT_TCP_FASTOPEN unexpected
CURLOPT_TFTP_NO_OPTIONS unexpected
CURLPIPE_HTTP1 unexpected
CURLPIPE_MULTIPLEX unexpected
CURLPIPE_NOTHING unexpected
CURLPROXY_HTTPS unexpected
CURLSSLBACKEND_BORINGSSL unexpected
CURLSSLBACKEND_LIBRESSL unexpected
CURLSSLBACKEND_MBEDTLS unexpected
CURLSSLBACKEND_WOLFSSL unexpected
CURLSSLOPT_NO_REVOKE unexpected
CURL_DID_MEMORY_FUNC_TYPEDEFS unexpected
CURL_HTTPPOST_BUFFER unexpected
CURL_HTTPPOST_CALLBACK unexpected
CURL_HTTPPOST_FILENAME unexpected
CURL_HTTPPOST_LARGE unexpected
CURL_HTTPPOST_PTRBUFFER unexpected
CURL_HTTPPOST_PTRCONTENTS unexpected
CURL_HTTPPOST_PTRNAME unexpected
CURL_HTTPPOST_READFILE unexpected
CURL_HTTP_VERSION_2 unexpected
CURL_HTTP_VERSION_2TLS unexpected
CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE unexpected
CURL_PUSH_DENY unexpected
CURL_PUSH_OK unexpected
CURL_SSLVERSION_TLSv1_3 unexpected
CURL_STRICTER unexpected
CURL_VERSION_HTTPS_PROXY unexpected
CURL_VERSION_PSL unexpected
-> found 788 constants (should be 715)
Writing const-defenums-h.inc
Writing const-curl-xs.inc
Writing const-easy-xs.inc
Writing const-form-xs.inc
Writing const-multi-xs.inc
Writing const-share-xs.inc
Writing curl-Easy-c.inc
Writing curl-Easy-xs.inc
Writing curl-Form-c.inc
Writing curl-Form-xs.inc
Writing curl-Multi-c.inc
Writing curl-Multi-xs.inc
Writing curl-Share-c.inc
Writing curl-Share-xs.inc
Writing lib/Net/Curl/examples.pod
<- examples/01-curl-transport.pl
<- examples/02-multi-simple.pl
<- examples/03-multi-event.pl
<- examples/04-share-threads.pl
<- examples/05-irssi-downloader.pl
Writing lib/Net/Curl/Compat.pm
Checking if your kit is complete...
Looks good
Writing Makefile for Net::Curl
Wide character in print at /home/ross/perl5/perlbrew/perls/perl-5.18.4
+/lib/5.18.4/ExtUtils/MakeMaker.pm line 1034.
Wide character in print at /home/ross/perl5/perlbrew/perls/perl-5.18.4
+/lib/5.18.4/ExtUtils/MakeMaker.pm line 1034.
Wide character in print at /home/ross/perl5/perlbrew/perls/perl-5.18.4
+/lib/5.18.4/ExtUtils/MakeMaker.pm line 1034.
Wide character in print at /home/ross/perl5/perlbrew/perls/perl-5.18.4
+/lib/5.18.4/ExtUtils/MakeMaker.pm line 1034.
Writing MYMETA.yml and MYMETA.json
cp lib/Net/Curl/Easy.pm blib/lib/Net/Curl/Easy.pm
cp lib/Net/Curl/Share.pm blib/lib/Net/Curl/Share.pm
cp lib/Net/Curl/Form.pm blib/lib/Net/Curl/Form.pm
cp lib/Net/Curl/Compat.pm blib/lib/Net/Curl/Compat.pm
cp lib/Net/Curl/Multi.pm blib/lib/Net/Curl/Multi.pm
cp lib/Net/Curl.pm blib/lib/Net/Curl.pm
cp lib/Net/Curl/examples.pod blib/lib/Net/Curl/examples.pod
/home/ross/perl5/perlbrew/perls/perl-5.18.4/bin/perl /home/ross/perl5/
+perlbrew/perls/perl-5.18.4/lib/5.18.4/ExtUtils/xsubpp  -typemap /home
+/ross/perl5/perlbrew/perls/perl-5.18.4/lib/5.18.4/ExtUtils/typemap -t
+ypemap typemap  Curl.xs > Curl.xsc && mv Curl.xsc Curl.c
cc -c   -Wall -I/usr/include/x86_64-linux-gnu -O2   -DVERSION=\"0.37\"
+ -DXS_VERSION=\"0.37\" -fPIC "-I/home/ross/perl5/perlbrew/perls/perl-
+5.18.4/lib/5.18.4/x86_64-linux/CORE"   Curl.c
Curl.xs: In function ‘perl_curl_constant_add’:
Curl.xs:387:0: warning: ignoring #pragma clang diagnostic [-Wunknown-p
+ragmas]
 #pragma clang diagnostic push
 
Curl.xs:388:0: warning: ignoring #pragma clang diagnostic [-Wunknown-p
+ragmas]
 #pragma clang diagnostic ignored "-Wunused-value"
 
Curl.xs:390:0: warning: ignoring #pragma clang diagnostic [-Wunknown-p
+ragmas]
 #pragma clang diagnostic pop
 
In file included from Curl.xs:23:0:
./const-easy-xs.inc: In function ‘boot_Net__Curl’:
const-defenums-h.inc:2267:24: error: ‘CURL_STRICTER’ undeclared (first
+ use in this function)
 # define CURL_STRICTER CURL_STRICTER
                        ^
./const-easy-xs.inc:678:27: note: in expansion of macro ‘CURL_STRICTER
+’
    { "CURL_STRICTER", 13, CURL_STRICTER },
                           ^~~~~~~~~~~~~
const-defenums-h.inc:2267:24: note: each undeclared identifier is repo
+rted only once for each function it appears in
 # define CURL_STRICTER CURL_STRICTER
                        ^
./const-easy-xs.inc:678:27: note: in expansion of macro ‘CURL_STRICTER
+’
    { "CURL_STRICTER", 13, CURL_STRICTER },
                           ^~~~~~~~~~~~~
Makefile:369: recipe for target 'Curl.o' failed
make: *** [Curl.o] Error 1
  SYP/Net-Curl-0.37.tar.gz
  /usr/bin/make -- NOT OK
'YAML' not installed, will not store persistent state
Running make test
  Can't test without successful make
Running make install
  Make had returned bad status, install seems impossible
[download]

$ cpan install WWW::Curl::Easy
Reading '/home/ross/.cpan/Metadata'
  Database was generated on Wed, 19 Apr 2017 22:53:51 GMT
Running install for module 'WWW::Curl::Easy'
Running make for S/SZ/SZBALINT/WWW-Curl-4.17.tar.gz
Checksum for /home/ross/.cpan/sources/authors/id/S/SZ/SZBALINT/WWW-Cur
+l-4.17.tar.gz ok

  CPAN.pm: Building S/SZ/SZBALINT/WWW-Curl-4.17.tar.gz

Locating required external dependency bin:curl-config... found at /usr
+/bin/curl-config.
The version is libcurl 7.52.1
Cannot find curl.h - cannot build constants files  - see Makefile.PL a
+t Makefile.PL line 96.
Warning: No success on command[/home/ross/perl5/perlbrew/perls/perl-5.
+18.4/bin/perl Makefile.PL INSTALLDIRS=site]
  SZBALINT/WWW-Curl-4.17.tar.gz
  /home/ross/perl5/perlbrew/perls/perl-5.18.4/bin/perl Makefile.PL INS
+TALLDIRS=site -- NOT OK
Running make test
  Make had some problems, won't test
Running make install
  Make had some problems, won't install
Could not read metadata file. Falling back to other methods to determi
+ne prerequisites
[download]

$ cpan install XML::RSS
Reading '/home/ross/.cpan/Metadata'
  Database was generated on Wed, 19 Apr 2017 22:53:51 GMT
XML::RSS is up to date (1.59).
[download]

$ cpan install Role::Tiny
Reading '/home/ross/.cpan/Metadata'
  Database was generated on Wed, 19 Apr 2017 22:53:51 GMT
Role::Tiny is up to date (2.000005).
[download]

$ sudo apt-get install libwww-curl-perl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libwww-curl-perl is already the newest version (4.17-4).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
[download]

$ sudo apt-get install libnet-curl-perl
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package libnet-curl-perl
[download]

I've seen very few references to these online, but there have been a couple of patches described that sound like they ought to work, but I tried them and they didn't work. Which might say more about my not knowing what I'm doing than anything else.

Anyway, does anyknow know how I can get this working? I really don't know what else I can try. Thanks.