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-rw-r--r--doc/ref/posix.texi7
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/ref/posix.texi b/doc/ref/posix.texi
index 880ac4184..45f320f45 100644
--- a/doc/ref/posix.texi
+++ b/doc/ref/posix.texi
@@ -1038,7 +1038,12 @@ platform.
@end deffn
@defvr {Scheme Variable} file-name-separator-string
-The standard file name separator.
+The preferred file name separator.
+
+Note that on MinGW builds for Windows, both @code{/} and @code{\} are
+valid separators. Thus, programs should not assume that
+@code{file-name-separator-string} is the @emph{only} file name
+separator---e.g., when extracting the components of a file name.
@end defvr