Fix -Wchar-subscripts warnings

The argument to the ctype functions must be an int and the value of the
character must be representable as an unsigned char or equal to the
value of the macro EOF. If the argument has any other value, the
behavior is undefined.

1 files changed, 2 insertions, 2 deletions

diff --git a/cpukit/libdl/rtl-archive.c b/cpukit/libdl/rtl-archive.c
index eb7641b034..6eba1585b6 100644
--- a/cpukit/libdl/rtl-archive.c
+++ b/cpukit/libdl/rtl-archive.c
@@ -516,13 +516,13 @@ rtems_rtl_archives_load_config (rtems_rtl_archives* archives)
       {
         size_t ls = strlen (&s[r]);
         size_t b = 0;
-        while (b < ls && isspace (s[r + b]))
+        while (b < ls && isspace ((unsigned char) s[r + b]))
         {
           s[r + b] = '\0';
           ++b;
         }
         b = ls - 1;
-        while (b > 0 && isspace (s[r + b]))
+        while (b > 0 && isspace ((unsigned char) s[r + b]))
         {
           s[r + b] = '\0';
           --b;