[plt-scheme] GC_CAN_IGNORE

Hi all,

In 369.8-svn13mar2007, when Pre-Installing, the C compiler constantly tells 'GC_CAN_IGNORE' is undeclared. (MZ_PRECISE_GC is defined).

setup-plt: Setup version is 369.8 [3m]
setup-plt: Available variants: 3m cgc

setup-plt: Pre-Installing 

ml.c
ml.c(23) : error C2065: 'GC_CAN_IGNORE' : undeclared identifier
ml.c(23) : error C2143: syntax error : missing ';' before 'type'

The same code used to work with previous version of PLT (for both 3m and cgc). So I'm not sure what's wrong now.

Chongkai