|Do you know where your variables are?|
... it complain not reference to zlibversion etc
Looks like you're trying to build against a static libcurl (libcurl.a).
It's probably easier to build against libcurl.dll.a import library, assuming you have such a file.
If you're lucky, it might be as simple as renaming libcurl.a to (eg) libcurl.a_static && then copying libcurl.dll.a to libcurl.a.
When I've built Net-Curl-0.37 against static libraries, I've had to specifically link to:
I'll try to build latest Net-Curl with perl-5.30 later today, and see how it goes for me.
In reply to Re^5: Can't call libcurl with Inline::C on Windows