RFR (XXS): 8138820: JDK Hotspot build fails with Xcode 7.0.1

[Christian Thalinger]

https://bugs.openjdk.java.net/browse/JDK-8138820

I’ve verified we still need both workarounds.

diff -r 0011fab3f1b5 make/bsd/makefiles/gcc.make
--- a/make/bsd/makefiles/gcc.make	Thu Oct 08 10:25:45 2015 +0000
+++ b/make/bsd/makefiles/gcc.make	Thu Oct 08 10:33:02 2015 -1000
@@ -313,10 +313,11 @@ endif
 
 # Work around some compiler bugs.
 ifeq ($(USE_CLANG), true)
-  # Clang <= 6.1
+  # Clang <= 6.1 | <= 7.0
   ifeq ($(shell expr \
       $(CC_VER_MAJOR) \< 6 \| \
-      \( $(CC_VER_MAJOR) = 6 \& $(CC_VER_MINOR) \<= 1 \) \
+      \( $(CC_VER_MAJOR) = 6 \& $(CC_VER_MINOR) \<= 1 \) \| \
+      \( $(CC_VER_MAJOR) = 7 \& $(CC_VER_MINOR) \<= 0 \) \
     ), 1)
     OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
     OPT_CFLAGS/unsafe.o += -O1