Implement string inserter for long long. This creates a problem on mingw as gcc

gives a warning unless -Wno-format is used, one of the most useful warnings.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35906 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure.in

@@ -6969,6 +6969,15 @@ if test "x$INTELCXX" = "xyes" ; then
 elif test "$GXX" = yes ; then
     dnl CXXWARNINGS="-Wall -W -Wcast-qual -Werror"
     CXXWARNINGS="-Wall -Wundef -Wno-ctor-dtor-privacy" 
+
+    dnl -Wno-format is a terrifically useful warning, however mingw warns
+    dnl whenever the I64 format specifier is used for long long.
+    dnl FIXME: it we detected when cygwin is using -mno-cygwin we could avoid
+    dnl disabling it for cygwin.
+    case "${host}" in
+        *-*-cygwin* | *-*-mingw32* )
+            CXXWARNINGS="$CXXWARNINGS -Wno-format"
+    esac
 fi
 
 EXTRA_CFLAGS="$WXDEBUG $WXODBCFLAG $PROFILE $OPTIMISE"