Bug 462272: Record dependency on generated header javascript-trace.h, r=mrbkap, NPOB

Record object files' dependency on javascript-trace.h, when
HAVE_DTRACE is set.

Use $(CURDIR) where javascript-trace.h appears as a target or
dependency, to ensure that VPATH doesn't cause us to use a copy other
than the one in the object directory.

js/src/Makefile.in

@@ -263,7 +263,7 @@ endif
 ifdef HAVE_DTRACE
 INSTALLED_HEADERS += \
 		jsdtracef.h \
-		javascript-trace.h \
+		$(CURDIR)/javascript-trace.h \
 		$(NULL)
 endif
 
@@ -651,8 +651,10 @@ jsautooplen.h: host_jsoplengen$(HOST_BIN_SUFFIX)
 $(CPPSRCS:%.cpp=%.$(OBJ_SUFFIX)): jsautokw.h jsautooplen.h
 
 ifdef HAVE_DTRACE
-javascript-trace.h: $(srcdir)/javascript-trace.d
+$(CURDIR)/javascript-trace.h: $(srcdir)/javascript-trace.d
 	dtrace -h -s $(srcdir)/javascript-trace.d -o javascript-trace.h.in
 	sed 's/if _DTRACE_VERSION/ifdef INCLUDE_MOZILLA_DTRACE/' \
 	    javascript-trace.h.in > javascript-trace.h
+
+$(CPPSRCS:%.cpp=%.$(OBJ_SUFFIX)): $(CURDIR)/javascript-trace.h
 endif