lib/fileutils: fix compiler warning

lib/fileutils.c: In function ‘dup_fd_cloexec’:
lib/fileutils.c:75:35: warning: unused parameter ‘lowfd’ [-Wunused-parameter]
int dup_fd_cloexec(int oldfd, int lowfd)
                                  ^
Addresses: https://github.com/util-linux/util-linux/issues/1755
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/lib/fileutils.c b/lib/fileutils.c
index cce3e352acb1e2612930941c3e0acc4406682079..7779e10e68dcfeedcf6f55d7f91b75086f98fffe 100644 (file)
--- a/lib/fileutils.c
+++ b/lib/fileutils.c
@@ -77,7 +77,11 @@ int xmkstemp(char **tmpname, const char *dir, const char *prefix)
        return fd;
 }
 
+#ifdef F_DUPFD_CLOEXEC
 int dup_fd_cloexec(int oldfd, int lowfd)
+#else
+int dup_fd_cloexec(int oldfd, int lowfd  __attribute__((__unused__)))
+#endif
 {
        int fd, flags, errno_save;