diff --git a/mps/code/xcppgc.gmk b/mps/code/xcppgc.gmk
index 4f8bcc778c5..22ee1bb8935 100644
--- a/mps/code/xcppgc.gmk
+++ b/mps/code/xcppgc.gmk
@@ -24,8 +24,18 @@ CC = cc -arch ppc
 #   .sputc: -Wno-unused is needed, because stdio.h declares __sputc as an
 #   inline function.
 #   .types: sys/types.h uses 'long long' even under -ansi.
+# ( Note added 2007-09-26, RHSK:
+#   And fix build under Mac OS X 10.2; see job000601:
+#     .precomp: -no-cpp-precomp is needed, to disable Apple's custom 
+#     preprocessor
+# )
 CFLAGSCOMPILER := $(subst -Wstrict-prototypes,,$(CFLAGSCOMPILER)) \
                   -Wno-unused -Wno-long-long -no-cpp-precomp
+
+# ( Note added 2007-09-26, RHSK:
+#   Fix build under Mac OS X 10.2; see job000601:
+#     .ggdb: -ggdb causes failure in assembler.
+# )
 CFLAGSDEBUG := $(subst -g -ggdb3,-g3,$(CFLAGSDEBUG))
 CFLAGSOPT := $(subst -g -ggdb3,-g3,$(CFLAGSOPT))