119 # Keep temporary files (.ii, .s)
 120 ifdef NEED_ASM
 121   CFLAGS += -save-temps
 122 else
 123   CFLAGS += -pipe
 124 endif
 125 
 126 # Compiler warnings are treated as errors
 127 WARNINGS_ARE_ERRORS = -Werror
 128 
 129 # Except for a few acceptable ones
 130 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
 131 # conversions which might affect the values. To avoid that, we need to turn
 132 # it off explicitly. 
 133 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
 134 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wsign-compare
 135 else
 136 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
 137 endif
 138 
 139 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS)


 140 # Special cases
 141 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 
 142 
 143 # The flags to use for an Optimized g++ build
 144 OPT_CFLAGS/SIZE=-Os
 145 OPT_CFLAGS/SPEED=-O3
 146 
 147 # Hotspot uses very unstrict aliasing turn this optimization off
 148 # This option is added to CFLAGS rather than OPT_CFLAGS
 149 # so that OPT_CFLAGS overrides get this option too.
 150 CFLAGS += -fno-strict-aliasing 
 151 
 152 OPT_CFLAGS_DEFAULT ?= SPEED
 153 
 154 ifdef OPT_CFLAGS
 155   ifneq ("$(origin OPT_CFLAGS)", "command line")
 156     $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")
 157   endif
 158 endif
 159 

 119 # Keep temporary files (.ii, .s)
 120 ifdef NEED_ASM
 121   CFLAGS += -save-temps
 122 else
 123   CFLAGS += -pipe
 124 endif
 125 
 126 # Compiler warnings are treated as errors
 127 WARNINGS_ARE_ERRORS = -Werror
 128 
 129 # Except for a few acceptable ones
 130 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
 131 # conversions which might affect the values. To avoid that, we need to turn
 132 # it off explicitly. 
 133 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
 134 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wsign-compare
 135 else
 136 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
 137 endif
 138 
 139 ADDITIONAL_WARNINGS = -Wunused-function
 140 
 141 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS) $(ADDITIONAL_WARNINGS)
 142 # Special cases
 143 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 
 144 
 145 # The flags to use for an Optimized g++ build
 146 OPT_CFLAGS/SIZE=-Os
 147 OPT_CFLAGS/SPEED=-O3
 148 
 149 # Hotspot uses very unstrict aliasing turn this optimization off
 150 # This option is added to CFLAGS rather than OPT_CFLAGS
 151 # so that OPT_CFLAGS overrides get this option too.
 152 CFLAGS += -fno-strict-aliasing 
 153 
 154 OPT_CFLAGS_DEFAULT ?= SPEED
 155 
 156 ifdef OPT_CFLAGS
 157   ifneq ("$(origin OPT_CFLAGS)", "command line")
 158     $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")
 159   endif
 160 endif
 161