Installation:
+ When compiling this extension as shared module:
  - run phpize in the extension directory
  - run ./configure (optionally add --with-krb5kadm if you need this functionality)
  - run make && make install
  - optional: enable your new extension in you php.ini

+ When compiling statically into your php binary
  - move this extension into your php distributions ext/ folder
  - make sure that the directory is named "krb5"
  - run ./buildconf --force in the root directory of you php distribution
  - ./configure php with your common flags and add --with-krb5 and optionally
  	--with-krb5kadm=<path>
  - make && make install
