anchor.diff:  
   :OL
   echo.   *** Making Otus Lisp:
  -%CC% -std=c99 -g3 -Wall -fmessage-length=0 -Wno-strict-aliasing tmp/repl.o src/olvm.c -Iwin32 -o "ol.exe" -lws2_32 -O2 -g2 -DHAS_PINVOKE=1
  +%CC% -std=c99 -g0 -O2 -Wall -fmessage-length=0 -Wno-strict-aliasing tmp/repl.o src/olvm.c -Iwin32 -o "ol.exe" -lws2_32 -DHAS_PINVOKE=1 ^
  +     -DNDEBUG -s
   GOTO:EOF
   
   :OL32
   echo.   *** Making 32-bit Otus Lisp:
   set PATH=%MINGW32%;%PATH%
  -%CC% -std=c99 -g0 -Wall -fmessage-length=0 -Wno-strict-aliasing tmp/repl32.o src/olvm.c -Iwin32 -o "ol.exe" -lws2_32 -O2 -DHAS_PINVOKE=1 -m32
  +%CC% -std=c99 -g3 -O0 -Wall -fmessage-length=0 -Wno-strict-aliasing tmp/repl32.o src/olvm.c -Iwin32 -o "ol.exe" -lws2_32 -DHAS_PINVOKE=1 -m32
   set PATH=%PATH~%
   GOTO:EOF
   
   :OL64
   echo.   *** Making 64-bit Otus Lisp:
   set PATH=%MINGW64%;%PATH%
  -%CC% -std=c99 -g0 -Wall -fmessage-length=0 -Wno-strict-aliasing tmp/repl64.o src/olvm.c -Iwin32 -o "ol.exe" -lws2_32 -O2 -DHAS_PINVOKE=1 -m64
  +%CC% -std=c99 -g3 -O0 -Wall -fmessage-length=0 -Wno-strict-aliasing tmp/repl64.o src/olvm.c -Iwin32 -o "ol.exe" -lws2_32 -DHAS_PINVOKE=1 -m64
   set PATH=%PATH~%
   GOTO:EOF
   
  
positive.code: echo.   *** Making 64-bit virtual machine:
  set PATH=%MINGW64%;%PATH%
  
  %CC% -std=c99 -g0 -O2 -Wall -fmessage-length=0 -fno-exceptions -Wno-strict-aliasing -DNAKED_VM ^
     src/olvm.c -Iwin32 -o "vm64.exe" -lws2_32 -m64 -DNDEBUG -s
  
  set PATH=%PATH~%
  GOTO:EOF
  
negative.code: :: internal
  set PATH=%MINGW32%;%PATH%
  echo 32-bit internal test:
  %CC% -std=c99 -g3 -O0 -Wall -fmessage-length=0 -fno-exceptions -Wno-strict-aliasing -DNAKED_VM ^
     src/olvm.c tests/vm.c -Iwin32 -o "test-vm32.exe" -lws2_32 -DEMBEDDED_VM=1 -m32 -DNDEBUG -Iinclude
  test-vm32.exe
  if errorlevel 1 goto fail
  
  set PATH=%PATH~%
  set PATH=%MINGW64%;%PATH%
  echo 64-bit internal test:
  %CC% -std=c99 -g3 -O0 -Wall -fmessage-length=0 -fno-exceptions -Wno-strict-aliasing -DNAKED_VM ^
     src/olvm.c tests/vm.c -Iwin32 -o "test-vm64.exe" -lws2_32 -DEMBEDDED_VM=1 -m64 -DNDEBUG -Iinclude
  test-vm64.exe
  if errorlevel 1 goto fail
  
  