compilation error

I tried to make both 2.2.9 and 2.2.8 on Ubuntu Breezy
Linux deloyd 2.6.17-10-generic #2 SMP Tue Dec 5 22:28:26 UTC 2006 i686 GNU/Linux

I get

output.c:23: error: static declaration of âoutputâ follows non-static declaration
indent.h:96: error: previous declaration of âoutputâ was here
output.c: In function âopen_outputâ:
output.c:1068: warning: incompatible implicit declaration of built-in function âexitâ