1 files changed, 18 insertions, 7 deletions

diff --git a/gl/m4/fopen.m4 b/gl/m4/fopen.m4
index 9c39ff72..e27b3270 100644
--- a/gl/m4/fopen.m4
+++ b/gl/m4/fopen.m4
@@ -1,15 +1,17 @@
-# fopen.m4 serial 13
-dnl Copyright (C) 2007-2023 Free Software Foundation, Inc.
+# fopen.m4
+# serial 16
+dnl Copyright (C) 2007-2025 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
+dnl This file is offered as-is, without any warranty.
 
-AC_DEFUN([gl_FUNC_FOPEN],
+AC_DEFUN([gl_FUNC_FOPEN_ITSELF],
 [
   AC_REQUIRE([gl_STDIO_H_DEFAULTS])
   AC_REQUIRE([AC_CANONICAL_HOST])
   case "$host_os" in
-    mingw* | pw*)
+    mingw* | windows* | pw*)
       dnl Replace fopen, for handling of "/dev/null".
       REPLACE_FOPEN=1
       dnl fopen on mingw also has the trailing slash bug.
@@ -58,6 +60,15 @@ changequote([,])dnl
   esac
 ])
 
+AC_DEFUN([gl_FUNC_FOPEN],
+[
+  AC_REQUIRE([gl_FUNC_FOPEN_ITSELF])
+  AC_REQUIRE([gl_FUNC_FCLOSE])
+  if test $REPLACE_FCLOSE = 1; then
+    REPLACE_FOPEN=1
+  fi
+])
+
 AC_DEFUN([gl_FUNC_FOPEN_GNU],
 [
   AC_REQUIRE([gl_FUNC_FOPEN])
@@ -87,7 +98,7 @@ int main ()
        [gl_cv_func_fopen_mode_x=no],
        [case "$host_os" in
           # Guess yes on glibc and musl systems.
-          linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl*)
+          linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl* | midipix*)
             gl_cv_func_fopen_mode_x="guessing yes" ;;
           # If we don't know, obey --enable-cross-guesses.
           *)
@@ -124,10 +135,10 @@ int main ()
        [gl_cv_func_fopen_mode_e=no],
        [case "$host_os" in
           # Guess yes on glibc and musl systems.
-          linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl*)
+          linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl* | midipix*)
             gl_cv_func_fopen_mode_e="guessing yes" ;;
           # Guess no on native Windows.
-          mingw*)
+          mingw* | windows*)
             gl_cv_func_fopen_mode_e="guessing no" ;;
           # If we don't know, obey --enable-cross-guesses.
           *)