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-rw-r--r--doc/emacs/cmdargs.texi6
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/emacs/cmdargs.texi b/doc/emacs/cmdargs.texi
index 34a5ff5f2c1..3f008ecc8e7 100644
--- a/doc/emacs/cmdargs.texi
+++ b/doc/emacs/cmdargs.texi
@@ -288,8 +288,10 @@ on this first line as a comment delimiter.
@opindex --no-build-details
@cindex build details
@cindex deterministic build
-Omit details like system name and build time from the Emacs executable,
-so that builds are more deterministic.
+Omit details like system name and build time from the Emacs
+executable, so that builds are more deterministic. This switch is not
+meant for regular (or interactive) use, since it makes commands like
+@code{system-name} return @code{nil}.
@item -q
@opindex -q