The st_size member of struct stat is off_t, which is signed,

all required by POSIX.  So don't compare it against against
an unsigned constant.

1 files changed, 1 insertions, 1 deletions

diff --git a/read.c b/read.c
index 7dabc2e4..efd08d1f 100644
--- a/read.c
+++ b/read.c
@@ -636,7 +636,7 @@ read_whole_file(struct mparse *curp, const char *file, int fd,
 	 */
 
 	if (S_ISREG(st.st_mode)) {
-		if (st.st_size >= (1U << 31)) {
+		if ((size_t)st.st_size >= (1U << 31)) {
 			mandoc_msg(MANDOCERR_TOOLARGE, curp, 0, 0, NULL);
 			return(0);
 		}