undefined reference to `errno'

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by mhjerde on Sat Mar 13 04:24:39 MST 2010
I'm haunted by this error message.

At some point during development this error always appears, usually together with a number of warnings ('previous implicit declaration'). That warning means that the prototype comes after the function is called which is not the case here. So something strange is going on.
Turning off optimization has no effect. I'm using the LPCxpresso 1343.

Any suggestions as to what is going on?