diff --git a/mozilla/js/src/config.mk b/mozilla/js/src/config.mk
index 7befdca027e..d45eb1e6ac4 100644
--- a/mozilla/js/src/config.mk
+++ b/mozilla/js/src/config.mk
@@ -69,7 +69,7 @@ JAVA_CLASSES = $(patsubst %.java,%.class,$(JAVA_SRCS))
 TARGETS     += $(addprefix $(CLASSDIR)/$(OBJDIR)/, $(JAVA_CLASSES))
 JAVAC        = $(JDK)/bin/javac
 JAVAC_FLAGS  = -classpath "$(CLASSPATH)" -d $(CLASSDIR)/$(OBJDIR)
-ifeq ($(OS_CONFIG), WINNT)
+ifeq ($(OS_ARCH), WINNT)
   SEP        = ;
 else
   SEP        = :
diff --git a/mozilla/js/src/config/WINNT4.0.mk b/mozilla/js/src/config/WINNT4.0.mk
index 826a6a20261..1fa2ef929a9 100644
--- a/mozilla/js/src/config/WINNT4.0.mk
+++ b/mozilla/js/src/config/WINNT4.0.mk
@@ -71,8 +71,8 @@ EXE_LINK_FLAGS=kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib\
  /subsystem:console /debug /pdb:none\
  /machine:I386
 
-CAFEDIR = t:/cafe
-JCLASSPATH = $(CAFEDIR)/Java/Lib/classes.zip
-JAVAC = $(CAFEDIR)/Bin/sj.exe
-JAVAH = $(CAFEDIR)/Java/Bin/javah.exe
-JCFLAGS = -I$(CAFEDIR)/Java/Include -I$(CAFEDIR)/Java/Include/win32
+# CAFEDIR = t:/cafe
+# JCLASSPATH = $(CAFEDIR)/Java/Lib/classes.zip
+# JAVAC = $(CAFEDIR)/Bin/sj.exe
+# JAVAH = $(CAFEDIR)/Java/Bin/javah.exe
+# JCFLAGS = -I$(CAFEDIR)/Java/Include -I$(CAFEDIR)/Java/Include/win32