rtc errors out compiling on mac 10.6

[glshort]

while building mapready, the following error occurs:

cc1: warnings being treated as errors
rtc.c: In function 'rtc':
rtc.c:200: warning: 'side_meta' may be used uninitialized in this function
rtc.c:199: warning: 'sideProductsMetaName' may be used uninitialized in this function
rtc.c:199: warning: 'sideProductsImgName' may be used uninitialized in this function
make[1]: *** [rtc.o] Error 1
make: *** [mapready] Error 2

The error can be bypassed by removing -Werror from the appropriate makefile(s)

[glshort]

Turns out this error also applies to building on windows.