C
libcurl is a C library in itself!
- http://curl.haxx.se/libcurl/
+ https://curl.haxx.se/libcurl/
C++
RPG
Support for ILE/RPG on OS/400 is included in source distribution
- http://curl.haxx.se/libcurl/
+ https://curl.haxx.se/libcurl/
See packages/OS400/README.OS400 and packages/OS400/curl.inc.in
Ruby