RFR: JDK-8138692: libjsig compilation is missing EXTRA_CFLAGS on macosx

[Erik Joelsson]

Hello,

Please review this trivial fix for compiling libjsig on macosx.

The compilation of libjsig on macosx is currently not getting the 
EXTRA_CFLAGS supplied to the hotspot build. This means any kind of 
sysroot/sdkname setting from configure isn't honored. Historically this 
has likely not mattered at all, but in the compiler upgrade project, it 
matters a great deal.

Bug: https://bugs.openjdk.java.net/browse/JDK-8138692
Patch:
diff -r 983c56341c80 make/bsd/makefiles/jsig.make
--- a/make/bsd/makefiles/jsig.make
+++ b/make/bsd/makefiles/jsig.make
@@ -62,7 +62,7 @@
  $(LIBJSIG): $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
      @echo $(LOG_INFO) Making signal interposition lib...
      $(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
-                         $(LFLAGS_JSIG) $(JSIG_DEBUG_CFLAGS) -o $@ $<
+                         $(LFLAGS_JSIG) $(JSIG_DEBUG_CFLAGS) 
$(EXTRA_CFLAGS) -o $@ $<
  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
    ifeq ($(OS_VENDOR), Darwin)
      $(DSYMUTIL) $@

/Erik