Index: src/lang/german.txt
===================================================================
--- src/lang/german.txt	(Revision 14286)
+++ src/lang/german.txt	(Arbeitskopie)
@@ -3,6 +3,7 @@
 ##isocode de_DE
 ##plural 0
 ##gender m w n
+##separator .
 
 #
 
Index: src/strings.cpp
===================================================================
--- src/strings.cpp	(Revision 14286)
+++ src/strings.cpp	(Arbeitskopie)
@@ -61,7 +61,8 @@
 	char isocode[16];   // the ISO code for the language (not country code)
 	uint16 offsets[32]; // the offsets
 	byte plural_form;   // how to compute plural forms
-	byte pad[3];        // pad header to be a multiple of 4
+	char separator;     // thousand separator
+	byte pad[2];        // pad header to be a multiple of 4
 	char data[VARARRAY_SIZE]; // list of strings
 };
 
@@ -221,7 +222,7 @@
 		}
 		if (tot |= quot || i == 19) {
 			*buff++ = '0' + quot;
-			if ((i % 3) == 1 && i != 19) *buff++ = ',';
+			if ((i % 3) == 1 && i != 19) *buff++ = _langpack->separator;
 		}
 
 		divisor /= 10;
Index: src/strgen/strgen.cpp
===================================================================
--- src/strgen/strgen.cpp	(Revision 14286)
+++ src/strgen/strgen.cpp	(Arbeitskopie)
@@ -42,7 +42,8 @@
 	char isocode[16];   // the ISO code for the language (not country code)
 	uint16 offsets[32]; // the offsets
 	byte plural_form;   // plural form index
-	byte pad[3];        // pad header to be a multiple of 4
+	char separator;     // thousand separator
+	byte pad[2];        // pad header to be a multiple of 4
 };
 
 struct CmdStruct {
@@ -94,6 +95,7 @@
 
 static uint32 _hash;
 static char _lang_name[32], _lang_ownname[32], _lang_isocode[16];
+static char _lang_separator;
 static byte _lang_pluralform;
 #define MAX_NUM_GENDER 8
 static char _genders[MAX_NUM_GENDER][8];
@@ -645,6 +647,8 @@
 		ttd_strlcpy(_lang_ownname, str + 8, sizeof(_lang_ownname));
 	} else if (!memcmp(str, "isocode ", 8)) {
 		ttd_strlcpy(_lang_isocode, str + 8, sizeof(_lang_isocode));
+	} else if (!memcmp(str, "separator ", 10)) {
+		_lang_separator = str[10];
 	} else if (!memcmp(str, "plural ", 7)) {
 		_lang_pluralform = atoi(str + 7);
 		if (_lang_pluralform >= lengthof(_plural_form_counts))
@@ -911,6 +915,7 @@
 	/* For each new file we parse, reset the genders, and language codes */
 	_numgenders = 0;
 	_lang_name[0] = _lang_ownname[0] = _lang_isocode[0] = '\0';
+	_lang_separator = ',';
 	// TODO:!! We can't reset the cases. In case the translated strings
 	// derive some strings from english....
 
@@ -1159,6 +1164,7 @@
 	hdr.ident = TO_LE32(0x474E414C); // Big Endian value for 'LANG'
 	hdr.version = TO_LE32(_hash);
 	hdr.plural_form = _lang_pluralform;
+	hdr.separator = _lang_separator;
 	strcpy(hdr.name, _lang_name);
 	strcpy(hdr.own_name, _lang_ownname);
 	strcpy(hdr.isocode, _lang_isocode);
@@ -1258,7 +1264,7 @@
 }
 
 /** Create a path consisting of an already existing path, a possible
- * path seperator and the filename. The seperator is only appended if the path
+ * path separator and the filename. The seperator is only appended if the path
  * does not already end with a seperator */
 static inline char *mkpath(char *buf, size_t buflen, const char *path, const char *file)
 {