CPAN install error on OS X

[p4paul]

I am unable to install Net::Curl::Easy on MacOS Monterey 12.4
I'm using brew:

$ which perl
/usr/local/bin/perl

This is perl 5, version 34, subversion 0 (v5.34.0) built for darwin-thread-multi-2level

------------[snip]-------->8---

/usr/local/Cellar/perl/5.34.0/lib/perl5/5.34.0/darwin-thread-multi-2level/CORE/perl.h:738:21: note: expanded from macro 'STMT_END'
#   define STMT_END     )
                        ^
./const-easy-xs.inc:824:35: error: use of undeclared identifier 'CURL_PREREQFUNC_ABORT'
                        { "CURL_PREREQFUNC_ABORT", 21, CURL_PREREQFUNC_ABORT },
                                                       ^
./const-defenums-h.inc:2735:32: note: expanded from macro 'CURL_PREREQFUNC_ABORT'
# define CURL_PREREQFUNC_ABORT CURL_PREREQFUNC_ABORT
                               ^
./const-easy-xs.inc:825:32: error: use of undeclared identifier 'CURL_PREREQFUNC_OK'
                        { "CURL_PREREQFUNC_OK", 18, CURL_PREREQFUNC_OK },
                                                    ^
./const-defenums-h.inc:2738:29: note: expanded from macro 'CURL_PREREQFUNC_OK'
# define CURL_PREREQFUNC_OK CURL_PREREQFUNC_OK
                            ^
478 warnings and 2 errors generated.
make: *** [Curl.o] Error 1
  SYP/Net-Curl-0.51.tar.gz
  /usr/bin/make -- NOT OK
Failed during this command:
 SYP/Net-Curl-0.51.tar.gz                     : make NO

cpan[2]>        

This has been working, but after upgrading to Monterey I can't install (other CPAN models seem ok)

Please let me know if you need the full log.

Kind regards,
Paul

[creaktive]

Sorry for the delay... What is the output of perl Makerfile.PL? I recall having similar issues when compiling with the libcurl version shipped with MacOS. Long story short: it is mangled; better use the version from Homebrew. The caveat is that you have to set environment variables to point the compiler to the Homebrew's libcurl version. This should do the trick:

brew install curl
eval $( brew shellenv )
export LDFLAGS="-L$HOMEBREW_PREFIX/opt/curl/lib"
export CPPFLAGS="-I$HOMEBREW_PREFIX/opt/curl/include"
export PKG_CONFIG_PATH="$HOMEBREW_PREFIX/opt/curl/lib/pkgconfig"
perl Makefile.PL
make
make test