lib/strutils: circumvent missing localeconv()

Add stub too nls.h, include it instead of locale.h.
Code in strutils handles already returned NULL.

Signed-off-by: maximilian attems <max@stro.at>

include/nls.h

@@ -12,6 +12,12 @@ int main(int argc, char *argv[]);
 #else
 # undef setlocale
 # define setlocale(Category, Locale) /* empty */
+struct lconv
+{
+	char *decimal_point;
+};
+# undef localeconv
+# define localeconv() NULL
 #endif
 
 #ifdef ENABLE_NLS

lib/strutils.c

@@ -9,10 +9,10 @@
 #include <ctype.h>
 #include <errno.h>
 #include <sys/stat.h>
-#include <locale.h>
 #include <string.h>
 
 #include "c.h"
+#include "nls.h"
 #include "strutils.h"
 #include "bitops.h"