Try to fix #6581:

* avoid trying to overwrite values of a constant structure when
  updating the numeric locale data values used by glibc


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38623 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/libroot/locale/LocaleBackend.h

@@ -14,6 +14,7 @@
 
 struct lconv;
 struct lc_time_t;
+struct locale_data;		// glibc
 
 
 namespace BPrivate {
@@ -47,14 +48,33 @@ struct LocaleMonetaryDataBridge {
 
 
 struct LocaleNumericDataBridge {
-	const char** 		addrOfGlibcDecimalPoint;
-	const char** 		addrOfGlibcThousandsSep;
-	const char** 		addrOfGlibcGrouping;
-	uint32_t*	 		addrOfGlibcWCDecimalPoint;
-	uint32_t*	 		addrOfGlibcWCThousandsSep;
+private:
+	// struct used by glibc to store numeric locale data
+	struct GlibcNumericLocale {
+		const char* name;
+		const char* filedata;
+		off_t filesize;
+		int mmaped;
+		unsigned int usage_count;
+		int use_translit;
+		const char *options;
+		unsigned int nstrings;
+		union locale_data_value
+		{
+			const uint32_t* wstr;
+			const char* string;
+			unsigned int word;
+		}
+		values[6];
+	};
+	locale_data* originalGlibcLocale;
+
+public:
 	const struct lconv* posixLocaleConv;
+	GlibcNumericLocale  glibcNumericLocale;
 
 	LocaleNumericDataBridge();
+	~LocaleNumericDataBridge();
 };