No POD found for call_asm_x86_gnu.s. Time to read the source?
call_asm_x86_gnu.s
To install Win32::API, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Win32::API
CPAN shell
perl -MCPAN -e shell install Win32::API
For more information on module installation, please visit the detailed CPAN module installation guide.