Fix for bug #6434 (bad memory deletion in app using libmysqld)

We should build libmysqld in SAFEMALLOC mode.


VC++Files/libmysqld/libmysqld.dsp:
  SAFEMALLOC define added to the libmysqld/Debug configuration

VC++Files/libmysqld/libmysqld.dsp

@@ -73,7 +73,7 @@ LINK32=xilink6.exe
 # PROP Ignore_Export_Lib 0
 # PROP Target_Dir ""
 # ADD BASE CPP /nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "_USRDLL" /D "LIBMYSQLD_EXPORTS" /YX /FD /GZ /c
-# ADD CPP /nologo /MT /W3 /Z7 /Od /I "../include" /I "../libmysqld" /I "../sql" /I "../regex" /I "../bdb/build_win32" /I "../zlib" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "HAVE_BERKELEY_DB" /D "USE_SYMDIR" /D "SIGNAL_WITH_VIO_CLOSE" /D "HAVE_DLOPEN" /D "EMBEDDED_LIBRARY" /D "HAVE_INNOBASE_DB" /D "USE_TLS" /D "__WIN__" /FD /GZ /c
+# ADD CPP /nologo /MT /W3 /Z7 /Od /I "../include" /I "../libmysqld" /I "../sql" /I "../regex" /I "../bdb/build_win32" /I "../zlib" /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /D "_MBCS" /D "SAFEMALLOC" /D "HAVE_BERKELEY_DB" /D "USE_SYMDIR" /D "SIGNAL_WITH_VIO_CLOSE" /D "HAVE_DLOPEN" /D "EMBEDDED_LIBRARY" /D "HAVE_INNOBASE_DB" /D "USE_TLS" /D "__WIN__" /FD /GZ /c
 # SUBTRACT CPP /X /Fr
 # ADD BASE MTL /nologo /D "_DEBUG" /mktyplib203 /win32
 # ADD MTL /nologo /D "_DEBUG" /mktyplib203 /win32