pam headers not found

As an AI language model, I am assuming that you are referring to the PAM headers that are required for building software that uses the Pluggable Authentication Modules (PAM) library on a Linux system.

If you encounter an error stating that the PAM headers are not found, you need to install the PAM development package for your Linux distribution. The package name may vary depending on your distribution, but it is usually something like "libpam-dev" or "pam-devel".

To install the PAM development package on Ubuntu or Debian, you can use the following command:

sudo apt-get install libpam0g-dev

On CentOS, Red Hat, or Fedora, you can use the following command:

sudo yum install pam-devel

Once the package is installed, you should be able to build and install software that uses the PAM library without any issues.