--- a/make/bsd/makefiles/gcc.make	Wed Oct 16 10:52:41 2013 +0200
+++ b/make/bsd/makefiles/gcc.make	Tue Nov 05 17:38:04 2013 -0800
@@ -80,9 +80,14 @@
     HOSTCC  = $(CC)
   endif
 
-  AS   = $(CC) -c -x assembler-with-cpp
+  AS   = $(CC) -c 
 endif
 
+ifeq ($(OS_VENDOR), Darwin)
+  ifeq ($(DSYMUTIL),)
+    DSYMUTIL=dsymutil
+  endif
+endif
 
 ifeq ($(USE_CLANG), true)
   CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1)
@@ -129,16 +134,21 @@
   
     # We only use precompiled headers for the JVM build
     CFLAGS += $(VM_PCH_FLAG)
-  
-    # There are some files which don't like precompiled headers
-    # The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build.
-    # But Clang doesn't support a precompiled header which was compiled with -O3
-    # to be used in a compilation unit which uses '-O0'. We could also prepare an
-    # extra '-O0' PCH file for the opt build and use it here, but it's probably
-    # not worth the effort as long as only two files need this special handling.
+ 
+    # The following files are compiled at various optimization
+    # levels due to optimization issues encountered at the
+    # 'OPT_CFLAGS_DEFAULT' level. The Clang compiler issues a compile
+    # time error if there is an optimization level specification
+    # skew between the PCH file and the C++ file.  Especially if the
+    # PCH file is compiled at a higher optimization level than
+    # the C++ file.  One solution might be to prepare extra optimization
+    # level specific PCH files for the opt build and use them here, but
+    # it's probably not worth the effort as long as only a few files
+    # need this special handling.
     PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH)
     PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH)
     PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH)
+    PCH_FLAG/unsafe.o = $(PCH_FLAG/NO_PCH)
   
   endif
 else # ($(USE_CLANG), true)
@@ -242,7 +252,7 @@
 
 ifeq ($(USE_CLANG), true)
   # However we need to clean the code up before we can unrestrictedly enable this option with Clang
-  WARNINGS_ARE_ERRORS += -Wno-unused-value -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
+  WARNINGS_ARE_ERRORS += -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
   WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-compare
 # Not yet supported by clang in Xcode 4.6.2
 #  WARNINGS_ARE_ERRORS += -Wno-tautological-constant-out-of-range-compare
@@ -257,7 +267,7 @@
   # conversions which might affect the values. Only enable it in earlier versions.
   WARNING_FLAGS = -Wunused-function
   ifeq ($(USE_CLANG),)
-    WARNINGS_FLAGS += -Wconversion
+    WARNING_FLAGS += -Wconversion
   endif
 endif
 
@@ -306,6 +316,7 @@
 ifeq ($(USE_CLANG), true)
   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)
     OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
+    OPT_CFLAGS/unsafe.o += -O1
   endif
 else
   # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
@@ -341,6 +352,13 @@
   LDFLAGS += -mmacosx-version-min=$(MACOSX_VERSION_MIN)
 endif
 
+
+#------------------------------------------------------------------------
+# Assembler flags
+
+# Enforce prerpocessing of .s files
+ASFLAGS += -x assembler-with-cpp
+
 #------------------------------------------------------------------------
 # Linker flags
 
@@ -421,6 +439,36 @@
   ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
   DEBUG_CFLAGS += -gstabs
   endif
+  
+  ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
+    FASTDEBUG_CFLAGS/ia64  = -g
+    FASTDEBUG_CFLAGS/amd64 = -g
+    FASTDEBUG_CFLAGS/arm   = -g
+    FASTDEBUG_CFLAGS/ppc   = -g
+    FASTDEBUG_CFLAGS += $(FASTDEBUG_CFLAGS/$(BUILDARCH))
+    ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),)
+      ifeq ($(USE_CLANG), true)
+        # Clang doesn't understand -gstabs
+        FASTDEBUG_CFLAGS += -g
+      else
+        FASTDEBUG_CFLAGS += -gstabs
+      endif
+    endif
+  
+    OPT_CFLAGS/ia64  = -g
+    OPT_CFLAGS/amd64 = -g
+    OPT_CFLAGS/arm   = -g
+    OPT_CFLAGS/ppc   = -g
+    OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH))
+    ifeq ($(OPT_CFLAGS/$(BUILDARCH)),)
+      ifeq ($(USE_CLANG), true)
+        # Clang doesn't understand -gstabs
+        OPT_CFLAGS += -g
+      else
+        OPT_CFLAGS += -gstabs
+      endif
+    endif
+  endif
 endif
 
 # If we are building HEADLESS, pass on to VM