error: redefinition of typedef 'GKqueueFileMonitor'
Building glib 2.58.0 using the old Apple gcc 4.2.1 compiler fails with this message:
gkqueuefilemonitor.c:88: error: redefinition of typedef 'GKqueueFileMonitor'
kqueue-helper.h:31: error: previous declaration of 'GKqueueFileMonitor' was here
I think this problem was introduced in 09c019a4.