Use ifdef's to guard against setlocale() in vlc-cache-gen

bin/cachegen.c

@@ -25,7 +25,10 @@
 #include <vlc/vlc.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <locale.h>
+
+#ifdef HAVE_SETLOCALE
+# include <locale.h>
+#endif
 
 #ifdef HAVE_GETOPT_H
 # include <getopt.h>
@@ -56,7 +59,9 @@ int main (int argc, char *argv[])
         { NULL,         no_argument,       NULL, '\0'}
     };
 
+#ifdef HAVE_SETLOCALE
     setlocale (LC_CTYPE, ""); /* needed by FromLocale() */
+#endif
 
     int c;
     while ((c = getopt_long (argc, argv, "hV", opts, NULL)) != -1)

configure.ac

@@ -562,7 +562,7 @@ dnl Check for system libs needed
 need_libc=false
 
 dnl Check for usual libc functions
-AC_CHECK_FUNCS([ctime_r daemon fcntl fdopendir fork getenv getpwuid_r gettimeofday isatty lstat memalign posix_fadvise posix_madvise posix_memalign putenv setenv stricmp strnicmp tdestroy uselocale])
+AC_CHECK_FUNCS([ctime_r daemon fcntl fdopendir fork getenv getpwuid_r gettimeofday isatty lstat memalign posix_fadvise posix_madvise posix_memalign putenv setenv setlocale stricmp strnicmp tdestroy uselocale])
 AC_REPLACE_FUNCS([asprintf atof atoll getcwd getpid gmtime_r lldiv localtime_r rewind strcasecmp strcasestr strdup strlcpy strncasecmp strndup strnlen strsep strtof strtok_r strtoll swab vasprintf])
 AC_CHECK_FUNCS(fdatasync,,
   [AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])