Works for me even on Ubuntu PP: 
mb@dennis ~ $ perl -E'say getlogin'
mb
mb@dennis ~ $ cat gl.c
#include <unistd.h>
#include <stdio.h>

int main(void) {
   puts(getlogin());
   return 0;
}
mb@dennis ~ $ gcc gl.c
mb@dennis ~ $ ./a.out
mb

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In reply to Re^5: getlogin works on debian but not ubuntu? by mbethke
in thread getlogin works on debian but not ubuntu? by bcrowell2

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