make/windows/makefiles/compile.make

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   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This code is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 # version 2 for more details (a copy is included in the LICENSE file that
  13 # accompanied this code).
  14 #
  15 # You should have received a copy of the GNU General Public License version
  16 # 2 along with this work; if not, write to the Free Software Foundation,
  17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18 #
  19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20 # or visit www.oracle.com if you need additional information or have any
  21 # questions.
  22 #  
  23 #
  24 
  25 # Generic compiler settings
  26 CPP=cl.exe
  27 
  28 # CPP Flags: (these vary slightly from VC6->VS2003->VS2005 compilers)
  29 #   /nologo   Supress copyright message at every cl.exe startup
  30 #   /W3       Warning level 3
  31 #   /Zi       Include debugging information
  32 #   /WX       Treat any warning error as a fatal error
  33 #   /MD       Use dynamic multi-threaded runtime (msvcrt.dll or msvc*NN.dll)
  34 #   /MTd      Use static multi-threaded runtime debug versions
  35 #   /O1       Optimize for size (/Os), skips /Oi
  36 #   /O2       Optimize for speed (/Ot), adds /Oi to /O1
  37 #   /Ox       Old "all optimizations flag" for VC6 (in /O1)
  38 #   /Oy       Use frame pointer register as GP reg (in /Ox and /O1)
  39 #   /GF       Merge string constants and put in read-only memory (in /O1)
  40 #   /Gy       Func level link (in /O1, allows for link-time func ordering)
  41 #   /Gs       Inserts stack probes (in /O1)
  42 #   /GS       Inserts security stack checks in some functions (VS2005 default)
  43 #   /Oi       Use intrinsics (in /O2)
  44 #   /Od       Disable all optimizations
  45 #
  46 # NOTE: Normally following any of the above with a '-' will turn off that flag
  47 #
  48 # 6655385: For VS2003/2005 we now specify /Oy- (disable frame pointer
  49 # omission.)  This has little to no effect on performance while vastly
  50 # improving the quality of crash log stack traces involving jvm.dll.
  51 
  52 # These are always used in all compiles
  53 CPP_FLAGS=/nologo /W3 /WX
  54 
  55 # Let's add debug information always too.
  56 CPP_FLAGS=$(CPP_FLAGS) /Zi
  57 
  58 # Based on BUILDARCH we add some flags and select the default compiler name
  59 !if "$(BUILDARCH)" == "ia64"
  60 MACHINE=IA64
  61 DEFAULT_COMPILER_NAME=VS2003
  62 CPP_FLAGS=$(CPP_FLAGS) /D "CC_INTERP" /D "_LP64" /D "IA64"
  63 !endif
  64 
  65 !if "$(BUILDARCH)" == "amd64"
  66 MACHINE=AMD64
  67 DEFAULT_COMPILER_NAME=VS2005
  68 CPP_FLAGS=$(CPP_FLAGS) /D "_LP64" /D "AMD64"
  69 LP64=1
  70 !endif
  71 
  72 !if "$(BUILDARCH)" == "i486"
  73 MACHINE=I386
  74 DEFAULT_COMPILER_NAME=VS2003
  75 CPP_FLAGS=$(CPP_FLAGS) /D "IA32"
  76 !endif
  77 
  78 # Sanity check, this is the default if not amd64, ia64, or i486
  79 !ifndef DEFAULT_COMPILER_NAME
  80 CPP=ARCH_ERROR
  81 !endif
  82 
  83 CPP_FLAGS=$(CPP_FLAGS) /D "WIN32" /D "_WINDOWS"
  84 # Must specify this for sharedRuntimeTrig.cpp
  85 CPP_FLAGS=$(CPP_FLAGS) /D "VM_LITTLE_ENDIAN"
  86 
  87 # Used for platform dispatching
  88 CPP_FLAGS=$(CPP_FLAGS) /D TARGET_OS_FAMILY_windows
  89 CPP_FLAGS=$(CPP_FLAGS) /D TARGET_ARCH_$(Platform_arch)
  90 CPP_FLAGS=$(CPP_FLAGS) /D TARGET_ARCH_MODEL_$(Platform_arch_model)
  91 CPP_FLAGS=$(CPP_FLAGS) /D TARGET_OS_ARCH_windows_$(Platform_arch)
  92 CPP_FLAGS=$(CPP_FLAGS) /D TARGET_OS_ARCH_MODEL_windows_$(Platform_arch_model)
  93 CPP_FLAGS=$(CPP_FLAGS) /D TARGET_COMPILER_visCPP
  94 
  95 
  96 # MSC_VER is a 4 digit number that tells us what compiler is being used
  97 #    and is generated when the local.make file is created by build.make
  98 #    via the script get_msc_ver.sh
  99 #
 100 #    If MSC_VER is set, it overrides the above default setting.
 101 #    But it should be set.
 102 #    Possible values:
 103 #      1200 is for VC6
 104 #      1300 and 1310 is VS2003 or VC7
 105 #      1399 is our fake number for the VS2005 compiler that really isn't 1400
 106 #      1400 is for VS2005
 107 #      1500 is for VS2008
 108 #      1600 is for VS2010
 109 #    Do not confuse this MSC_VER with the predefined macro _MSC_VER that the
 110 #    compiler provides, when MSC_VER==1399, _MSC_VER will be 1400.
 111 #    Normally they are the same, but a pre-release of the VS2005 compilers
 112 #    in the Windows 64bit Platform SDK said it was 1400 when it was really
 113 #    closer to VS2003 in terms of option spellings, so we use 1399 for that


 133 COMPILER_NAME=VS2005
 134 !endif
 135 !if "$(MSC_VER)" == "1500"
 136 COMPILER_NAME=VS2008
 137 !endif
 138 !if "$(MSC_VER)" == "1600"
 139 COMPILER_NAME=VS2010
 140 !endif
 141 !endif
 142 
 143 # By default, we do not want to use the debug version of the msvcrt.dll file
 144 #   but if MFC_DEBUG is defined in the environment it will be used.
 145 MS_RUNTIME_OPTION = /MD
 146 !if "$(MFC_DEBUG)" == "true"
 147 MS_RUNTIME_OPTION = /MTd /D "_DEBUG"
 148 !endif
 149 
 150 # Always add the _STATIC_CPPLIB flag
 151 STATIC_CPPLIB_OPTION = /D _STATIC_CPPLIB /D _DISABLE_DEPRECATE_STATIC_CPPLIB
 152 MS_RUNTIME_OPTION = $(MS_RUNTIME_OPTION) $(STATIC_CPPLIB_OPTION)
 153 CPP_FLAGS=$(CPP_FLAGS) $(MS_RUNTIME_OPTION)
 154 
 155 # How /GX option is spelled
 156 GX_OPTION = /GX
 157 
 158 # Optimization settings for various versions of the compilers and types of
 159 #    builds. Three basic sets of settings: product, fastdebug, and debug.
 160 #    These get added into CPP_FLAGS as needed by other makefiles.
 161 !if "$(COMPILER_NAME)" == "VC6"
 162 PRODUCT_OPT_OPTION   = /Ox /Os /Gy /GF
 163 FASTDEBUG_OPT_OPTION = /Ox /Os /Gy /GF
 164 DEBUG_OPT_OPTION     = /Od
 165 !endif
 166 
 167 !if "$(COMPILER_NAME)" == "VS2003"
 168 PRODUCT_OPT_OPTION   = /O2 /Oy-
 169 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 170 DEBUG_OPT_OPTION     = /Od
 171 !endif
 172 
 173 !if "$(COMPILER_NAME)" == "VS2005"
 174 PRODUCT_OPT_OPTION   = /O2 /Oy-
 175 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 176 DEBUG_OPT_OPTION     = /Od
 177 GX_OPTION = /EHsc
 178 # This VS2005 compiler has /GS as a default and requires bufferoverflowU.lib 
 179 #    on the link command line, otherwise we get missing __security_check_cookie
 180 #    externals at link time. Even with /GS-, you need bufferoverflowU.lib.
 181 #    NOTE: Currently we decided to not use /GS-
 182 BUFFEROVERFLOWLIB = bufferoverflowU.lib
 183 LINK_FLAGS = /manifest $(LINK_FLAGS) $(BUFFEROVERFLOWLIB)
 184 # Manifest Tool - used in VS2005 and later to adjust manifests stored
 185 # as resources inside build artifacts.
 186 MT=mt.exe
 187 !endif
 188 
 189 !if "$(COMPILER_NAME)" == "VS2008"
 190 PRODUCT_OPT_OPTION   = /O2 /Oy-
 191 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 192 DEBUG_OPT_OPTION     = /Od
 193 GX_OPTION = /EHsc
 194 LINK_FLAGS = /manifest $(LINK_FLAGS)
 195 # Manifest Tool - used in VS2005 and later to adjust manifests stored
 196 # as resources inside build artifacts.
 197 MT=mt.exe
 198 !endif
 199 
 200 !if "$(COMPILER_NAME)" == "VS2010"
 201 PRODUCT_OPT_OPTION   = /O2 /Oy-
 202 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 203 DEBUG_OPT_OPTION     = /Od
 204 GX_OPTION = /EHsc
 205 LINK_FLAGS = /manifest $(LINK_FLAGS)
 206 # Manifest Tool - used in VS2005 and later to adjust manifests stored
 207 # as resources inside build artifacts.
 208 MT=mt.exe
 209 !if "$(BUILDARCH)" == "i486"
 210 LINK_FLAGS = /SAFESEH $(LINK_FLAGS)
 211 !endif
 212 !endif
 213 
 214 # Compile for space above time.
 215 !if "$(Variant)" == "kernel"
 216 PRODUCT_OPT_OPTION   = /O1 /Oy-
 217 FASTDEBUG_OPT_OPTION = /O1 /Oy-
 218 DEBUG_OPT_OPTION     = /Od
 219 !endif
 220 
 221 # If NO_OPTIMIZATIONS is defined in the environment, turn everything off
 222 !ifdef NO_OPTIMIZATIONS
 223 PRODUCT_OPT_OPTION   = $(DEBUG_OPT_OPTION)
 224 FASTDEBUG_OPT_OPTION = $(DEBUG_OPT_OPTION)
 225 !endif
 226 
 227 # Generic linker settings
 228 LINK=link.exe
 229 LINK_FLAGS= $(LINK_FLAGS) kernel32.lib user32.lib gdi32.lib winspool.lib \
 230  comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib \
 231  uuid.lib Wsock32.lib winmm.lib /nologo /machine:$(MACHINE) /opt:REF \
 232  /opt:ICF,8 /map /debug
 233 
 234 
 235 !if $(MSC_VER) >= 1600 
 236 LINK_FLAGS= $(LINK_FLAGS) psapi.lib
 237 !endif
 238 
 239 # Resource compiler settings
 240 RC=rc.exe
 241 RC_FLAGS=/D "HS_VER=$(HS_VER)" \
 242          /D "HS_DOTVER=$(HS_DOTVER)" \
 243          /D "HS_BUILD_ID=$(HS_BUILD_ID)" \
 244          /D "JDK_VER=$(JDK_VER)" \
 245          /D "JDK_DOTVER=$(JDK_DOTVER)" \
 246          /D "HS_COMPANY=$(HS_COMPANY)" \
 247          /D "HS_FILEDESC=$(HS_FILEDESC)" \
 248          /D "HS_COPYRIGHT=$(HS_COPYRIGHT)" \
 249          /D "HS_FNAME=$(HS_FNAME)" \
 250          /D "HS_INTERNAL_NAME=$(HS_INTERNAL_NAME)" \
 251          /D "HS_NAME=$(HS_NAME)"
 252 
 253 # Need this to match the CPP_FLAGS settings
 254 !if "$(MFC_DEBUG)" == "true"
 255 RC_FLAGS = $(RC_FLAGS) /D "_DEBUG"
 256 !endif
 257 


   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.
   8 #
   9 # This code is distributed in the hope that it will be useful, but WITHOUT
  10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 # version 2 for more details (a copy is included in the LICENSE file that
  13 # accompanied this code).
  14 #
  15 # You should have received a copy of the GNU General Public License version
  16 # 2 along with this work; if not, write to the Free Software Foundation,
  17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18 #
  19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20 # or visit www.oracle.com if you need additional information or have any
  21 # questions.
  22 #  
  23 #
  24 
  25 # Generic compiler settings
  26 CXX=cl.exe
  27 
  28 # CXX Flags: (these vary slightly from VC6->VS2003->VS2005 compilers)
  29 #   /nologo   Supress copyright message at every cl.exe startup
  30 #   /W3       Warning level 3
  31 #   /Zi       Include debugging information
  32 #   /WX       Treat any warning error as a fatal error
  33 #   /MD       Use dynamic multi-threaded runtime (msvcrt.dll or msvc*NN.dll)
  34 #   /MTd      Use static multi-threaded runtime debug versions
  35 #   /O1       Optimize for size (/Os), skips /Oi
  36 #   /O2       Optimize for speed (/Ot), adds /Oi to /O1
  37 #   /Ox       Old "all optimizations flag" for VC6 (in /O1)
  38 #   /Oy       Use frame pointer register as GP reg (in /Ox and /O1)
  39 #   /GF       Merge string constants and put in read-only memory (in /O1)
  40 #   /Gy       Func level link (in /O1, allows for link-time func ordering)
  41 #   /Gs       Inserts stack probes (in /O1)
  42 #   /GS       Inserts security stack checks in some functions (VS2005 default)
  43 #   /Oi       Use intrinsics (in /O2)
  44 #   /Od       Disable all optimizations
  45 #
  46 # NOTE: Normally following any of the above with a '-' will turn off that flag
  47 #
  48 # 6655385: For VS2003/2005 we now specify /Oy- (disable frame pointer
  49 # omission.)  This has little to no effect on performance while vastly
  50 # improving the quality of crash log stack traces involving jvm.dll.
  51 
  52 # These are always used in all compiles
  53 CXX_FLAGS=/nologo /W3 /WX
  54 
  55 # Let's add debug information always too.
  56 CXX_FLAGS=$(CXX_FLAGS) /Zi
  57 
  58 # Based on BUILDARCH we add some flags and select the default compiler name
  59 !if "$(BUILDARCH)" == "ia64"
  60 MACHINE=IA64
  61 DEFAULT_COMPILER_NAME=VS2003
  62 CXX_FLAGS=$(CXX_FLAGS) /D "CC_INTERP" /D "_LP64" /D "IA64"
  63 !endif
  64 
  65 !if "$(BUILDARCH)" == "amd64"
  66 MACHINE=AMD64
  67 DEFAULT_COMPILER_NAME=VS2005
  68 CXX_FLAGS=$(CXX_FLAGS) /D "_LP64" /D "AMD64"
  69 LP64=1
  70 !endif
  71 
  72 !if "$(BUILDARCH)" == "i486"
  73 MACHINE=I386
  74 DEFAULT_COMPILER_NAME=VS2003
  75 CXX_FLAGS=$(CXX_FLAGS) /D "IA32"
  76 !endif
  77 
  78 # Sanity check, this is the default if not amd64, ia64, or i486
  79 !ifndef DEFAULT_COMPILER_NAME
  80 CXX=ARCH_ERROR
  81 !endif
  82 
  83 CXX_FLAGS=$(CXX_FLAGS) /D "WIN32" /D "_WINDOWS"
  84 # Must specify this for sharedRuntimeTrig.cpp
  85 CXX_FLAGS=$(CXX_FLAGS) /D "VM_LITTLE_ENDIAN"
  86 
  87 # Used for platform dispatching
  88 CXX_FLAGS=$(CXX_FLAGS) /D TARGET_OS_FAMILY_windows
  89 CXX_FLAGS=$(CXX_FLAGS) /D TARGET_ARCH_$(Platform_arch)
  90 CXX_FLAGS=$(CXX_FLAGS) /D TARGET_ARCH_MODEL_$(Platform_arch_model)
  91 CXX_FLAGS=$(CXX_FLAGS) /D TARGET_OS_ARCH_windows_$(Platform_arch)
  92 CXX_FLAGS=$(CXX_FLAGS) /D TARGET_OS_ARCH_MODEL_windows_$(Platform_arch_model)
  93 CXX_FLAGS=$(CXX_FLAGS) /D TARGET_COMPILER_visCPP
  94 
  95 
  96 # MSC_VER is a 4 digit number that tells us what compiler is being used
  97 #    and is generated when the local.make file is created by build.make
  98 #    via the script get_msc_ver.sh
  99 #
 100 #    If MSC_VER is set, it overrides the above default setting.
 101 #    But it should be set.
 102 #    Possible values:
 103 #      1200 is for VC6
 104 #      1300 and 1310 is VS2003 or VC7
 105 #      1399 is our fake number for the VS2005 compiler that really isn't 1400
 106 #      1400 is for VS2005
 107 #      1500 is for VS2008
 108 #      1600 is for VS2010
 109 #    Do not confuse this MSC_VER with the predefined macro _MSC_VER that the
 110 #    compiler provides, when MSC_VER==1399, _MSC_VER will be 1400.
 111 #    Normally they are the same, but a pre-release of the VS2005 compilers
 112 #    in the Windows 64bit Platform SDK said it was 1400 when it was really
 113 #    closer to VS2003 in terms of option spellings, so we use 1399 for that


 133 COMPILER_NAME=VS2005
 134 !endif
 135 !if "$(MSC_VER)" == "1500"
 136 COMPILER_NAME=VS2008
 137 !endif
 138 !if "$(MSC_VER)" == "1600"
 139 COMPILER_NAME=VS2010
 140 !endif
 141 !endif
 142 
 143 # By default, we do not want to use the debug version of the msvcrt.dll file
 144 #   but if MFC_DEBUG is defined in the environment it will be used.
 145 MS_RUNTIME_OPTION = /MD
 146 !if "$(MFC_DEBUG)" == "true"
 147 MS_RUNTIME_OPTION = /MTd /D "_DEBUG"
 148 !endif
 149 
 150 # Always add the _STATIC_CPPLIB flag
 151 STATIC_CPPLIB_OPTION = /D _STATIC_CPPLIB /D _DISABLE_DEPRECATE_STATIC_CPPLIB
 152 MS_RUNTIME_OPTION = $(MS_RUNTIME_OPTION) $(STATIC_CPPLIB_OPTION)
 153 CXX_FLAGS=$(CXX_FLAGS) $(MS_RUNTIME_OPTION)
 154 
 155 # How /GX option is spelled
 156 GX_OPTION = /GX
 157 
 158 # Optimization settings for various versions of the compilers and types of
 159 #    builds. Three basic sets of settings: product, fastdebug, and debug.
 160 #    These get added into CXX_FLAGS as needed by other makefiles.
 161 !if "$(COMPILER_NAME)" == "VC6"
 162 PRODUCT_OPT_OPTION   = /Ox /Os /Gy /GF
 163 FASTDEBUG_OPT_OPTION = /Ox /Os /Gy /GF
 164 DEBUG_OPT_OPTION     = /Od
 165 !endif
 166 
 167 !if "$(COMPILER_NAME)" == "VS2003"
 168 PRODUCT_OPT_OPTION   = /O2 /Oy-
 169 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 170 DEBUG_OPT_OPTION     = /Od
 171 !endif
 172 
 173 !if "$(COMPILER_NAME)" == "VS2005"
 174 PRODUCT_OPT_OPTION   = /O2 /Oy-
 175 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 176 DEBUG_OPT_OPTION     = /Od
 177 GX_OPTION = /EHsc
 178 # This VS2005 compiler has /GS as a default and requires bufferoverflowU.lib 
 179 #    on the link command line, otherwise we get missing __security_check_cookie
 180 #    externals at link time. Even with /GS-, you need bufferoverflowU.lib.
 181 #    NOTE: Currently we decided to not use /GS-
 182 BUFFEROVERFLOWLIB = bufferoverflowU.lib
 183 LD_FLAGS = /manifest $(LD_FLAGS) $(BUFFEROVERFLOWLIB)
 184 # Manifest Tool - used in VS2005 and later to adjust manifests stored
 185 # as resources inside build artifacts.
 186 MT=mt.exe
 187 !endif
 188 
 189 !if "$(COMPILER_NAME)" == "VS2008"
 190 PRODUCT_OPT_OPTION   = /O2 /Oy-
 191 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 192 DEBUG_OPT_OPTION     = /Od
 193 GX_OPTION = /EHsc
 194 LD_FLAGS = /manifest $(LD_FLAGS)
 195 # Manifest Tool - used in VS2005 and later to adjust manifests stored
 196 # as resources inside build artifacts.
 197 MT=mt.exe
 198 !endif
 199 
 200 !if "$(COMPILER_NAME)" == "VS2010"
 201 PRODUCT_OPT_OPTION   = /O2 /Oy-
 202 FASTDEBUG_OPT_OPTION = /O2 /Oy-
 203 DEBUG_OPT_OPTION     = /Od
 204 GX_OPTION = /EHsc
 205 LD_FLAGS = /manifest $(LD_FLAGS)
 206 # Manifest Tool - used in VS2005 and later to adjust manifests stored
 207 # as resources inside build artifacts.
 208 MT=mt.exe
 209 !if "$(BUILDARCH)" == "i486"
 210 LD_FLAGS = /SAFESEH $(LD_FLAGS)
 211 !endif
 212 !endif
 213 
 214 # Compile for space above time.
 215 !if "$(Variant)" == "kernel"
 216 PRODUCT_OPT_OPTION   = /O1 /Oy-
 217 FASTDEBUG_OPT_OPTION = /O1 /Oy-
 218 DEBUG_OPT_OPTION     = /Od
 219 !endif
 220 
 221 # If NO_OPTIMIZATIONS is defined in the environment, turn everything off
 222 !ifdef NO_OPTIMIZATIONS
 223 PRODUCT_OPT_OPTION   = $(DEBUG_OPT_OPTION)
 224 FASTDEBUG_OPT_OPTION = $(DEBUG_OPT_OPTION)
 225 !endif
 226 
 227 # Generic linker settings
 228 LD=link.exe
 229 LD_FLAGS= $(LD_FLAGS) kernel32.lib user32.lib gdi32.lib winspool.lib \
 230  comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib \
 231  uuid.lib Wsock32.lib winmm.lib /nologo /machine:$(MACHINE) /opt:REF \
 232  /opt:ICF,8 /map /debug
 233 
 234 
 235 !if $(MSC_VER) >= 1600 
 236 LD_FLAGS= $(LD_FLAGS) psapi.lib
 237 !endif
 238 
 239 # Resource compiler settings
 240 RC=rc.exe
 241 RC_FLAGS=/D "HS_VER=$(HS_VER)" \
 242          /D "HS_DOTVER=$(HS_DOTVER)" \
 243          /D "HS_BUILD_ID=$(HS_BUILD_ID)" \
 244          /D "JDK_VER=$(JDK_VER)" \
 245          /D "JDK_DOTVER=$(JDK_DOTVER)" \
 246          /D "HS_COMPANY=$(HS_COMPANY)" \
 247          /D "HS_FILEDESC=$(HS_FILEDESC)" \
 248          /D "HS_COPYRIGHT=$(HS_COPYRIGHT)" \
 249          /D "HS_FNAME=$(HS_FNAME)" \
 250          /D "HS_INTERNAL_NAME=$(HS_INTERNAL_NAME)" \
 251          /D "HS_NAME=$(HS_NAME)"
 252 
 253 # Need this to match the CXX_FLAGS settings
 254 !if "$(MFC_DEBUG)" == "true"
 255 RC_FLAGS = $(RC_FLAGS) /D "_DEBUG"
 256 !endif
 257