(postopen) Cast `char' to `unsigned char' before passing to isspace().

[pspp-builds.git] / src / postscript.c

diff --git a/src/postscript.c b/src/postscript.c
index c828a0df2a49136cf73433458384996355516d31..c5bde5e65a4f2aaa30d1f572c61195834aba499a 100644 (file)
--- a/src/postscript.c
+++ b/src/postscript.c
@@ -1452,7 +1452,7 @@ postopen (struct file_ext *f)
          char *beg;
          beg = buf2 = fn_interp_vars (buf, ps_get_var);
          len = strlen (buf2);
-         while (isspace (*beg))
+         while (isspace ((unsigned char) *beg))
            beg++, len--;
          if (beg[len - 1] == '\n')
            len--;