Base JS/NSPR paths on SBBS_SRC, not XPDEV

src/sbbs3/Common.gmake

@@ -12,16 +12,16 @@ JS_CFLAGS += -DJAVASCRIPT
 ifdef JSINCLUDE
  JS_CFLAGS += -I$(JSINCLUDE)
 else
- JS_CFLAGS += -I$(XPDEV)/../../include/mozilla/js
+ JS_CFLAGS += -I$(SBBS_SRC)/../../include/mozilla/js
 endif
 ifndef JSLIBDIR
- JSLIBDIR := $(XPDEV)/../../lib/mozilla/js/$(machine).$(BUILD)
+ JSLIBDIR := $(SBBS_SRC)/../../lib/mozilla/js/$(machine).$(BUILD)
 endif
 ifndef JSLIB
  JSLIB	:=	js
 endif
 ifndef NSPRDIR
- NSPRDIR := $(XPDEV)/../../lib/mozilla/nspr/$(machine).$(BUILD)
+ NSPRDIR := $(SBBS_SRC)/../../lib/mozilla/nspr/$(machine).$(BUILD)
 endif
 JS_LDFLAGS += -L$(JSLIBDIR) -l$(JSLIB)
 #The following is needed for nspr support on Linux