NAG Downloads - C Library

Linux 64 (Intel(R) 64 / AMD64), Intel C++, 64-bit Integer

Specific download information:

  • C Library, Mark 23
  • For Intel 64-bit systems and compatible (including AMD64)
  • Linux (glibc-2.7-2) and compatible
  • Using Intel C++ Compiler for Intel 64 Version 12.1 and compatible
  • File size of C Library
    188 MB ; 198,151,651 bytes
  • File size of Documentation
    120 MB ; 126,008,771 bytes
  • NAG Product Code: CLL6I23DCL


Download the single tar gzip file from here (size: 188 MB).
For detailed installation instructions, click here.

For implementation specific information, refer to the Installer's Note and Users' Note.


You can access the documentation on our website. You also have the option to download the tgz file from here (size: 120 MB). For detailed installation instructions, click here.

Licence key

To enable the use of your NAG software you will need a relevant licence key. Instructions for obtaining a licence key are included in the products Installer's Note. Alternatively you can complete the ‘Request a Licence Key’ web form here. If you've already been supplied with a licence key from our Support Desk then you will not need to complete this form/request a key. In the event of difficulty please contact your Technical Support Service.

Trial Request

For more information on trialling NAG software click here

Product Purchasing

The product can be purchased by contacting one of our offices