* libguile/read.c: Include <c-ctype.h>.
(try_read_ci_chars): Use 'c_tolower' instead of 'tolower'.
#include <unicase.h>
#include <unictype.h>
#include <c-strcase.h>
+#include <c-ctype.h>
#include "libguile/_scm.h"
#include "libguile/bytevectors.h"
c = scm_getc (port);
if (c == EOF)
break;
- else if (tolower (c) != expected_chars[num_chars_read])
+ else if (c_tolower (c) != expected_chars[num_chars_read])
{
scm_ungetc (c, port);
break;