Hello,

I recently observed that batch-byte-recompile-directory no more
recompile .el files newer than their .elc file.

Here is the shell command I use:

emacs -batch --no-init-file --no-site-file --eval "(setq load-path [my
load path])" -f batch-byte-recompile-directory .

After some investigation, I found that commit
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=8638aace3fbe01529f33870f469fa60bf5e43ee7
could be the culprit.

The attached patch fixed the above commit and solved the issue for me.

Thanks

In GNU Emacs 29.0.50 (build 6, x86_64-pc-linux-gnu, GTK+ Version
  3.24.34, cairo version 1.17.6) of 2022-11-07 built on kilauea
Repository revision: d04433b96215d7d3387573f19cc315de86f2341a
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12014000
System Description: Fedora Linux 36 (KDE Plasma)

Configured using:
  'configure --prefix=/home/dponce --with-x-toolkit=gtk3
  PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS WEBP X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
   value of $LC_TIME: fr_FR.utf8
   value of $LANG: fr_FR.UTF-8
   locale-coding-system: utf-8-unix