fix a potential end-of-buffer issue in tccelf.c

also read characters one at a time when PARSE_DEBUG is set; after this
patch, things seem to work with that.

1 files changed, 1 insertions, 1 deletions

diff --git a/tccpp.c b/tccpp.c
index b44296d..0a99832 100644
--- a/tccpp.c
+++ b/tccpp.c
@@ -386,7 +386,7 @@ static int tcc_peekc_slow(BufferedFile *bf)
     if (bf->buf_ptr >= bf->buf_end) {
         if (bf->fd != -1) {
 #if defined(PARSE_DEBUG)
-            len = 8;
+            len = 1;
 #else
             len = IO_BUF_SIZE;
 #endif