make/bsd/makefiles/gcc.make

rev 8116 : 8077364: "if( !this )" construct prevents build on Xcode 6.3
Reviewed-by:

*** 327,336 ****
--- 327,340 ----
      OPT_CFLAGS/unsafe.o += -O1
    # Clang 6.0 
    else ifeq ($(shell expr $(CC_VER_MAJOR) = 6 \& $(CC_VER_MINOR) = 0), 1) 
      OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT) 
      OPT_CFLAGS/unsafe.o += -O1 
+   # Clang 6.1
+   else ifeq ($(shell expr $(CC_VER_MAJOR) = 6 \& $(CC_VER_MINOR) = 1), 1)
+     OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
+     OPT_CFLAGS/unsafe.o += -O1
    else
      $(error "Update compiler workarounds for Clang $(CC_VER_MAJOR).$(CC_VER_MINOR)")
    endif
  else
    # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.