I have the Clarion 6.3 version and after to follow the instructions from homepage i can see Clarion imported the libcurl to the system.
But after to create a window and a button, and put code above in the button source area it doesn't work, specially the line about to include the .inc file
PRAGMA('project(#compile libcurl.clw)')
PRAGMA('project(#pragma link(libcurl.lib))')
INCLUDE('libcurl.inc')
Someone could help me with that ?