>From a01be1645717a029e571fd0dbb42245f05aff88c Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 28 Jun 2020 13:18:11 -0700
Subject: [PATCH] =?UTF-8?q?getrandom:=20do=20not=20depend=20on=20=E2=80=98?=
 =?UTF-8?q?open=E2=80=99=20on=20mingw?=
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Similarly for at-internal, getloadavg.  These modules do not call
the ‘open’ function when they are compiled on mingw.  On mingw,
this avoids having to compile open.c when building Emacs, which
does its own thing with ‘open’.
* modules/at-internal, modules/getloadavg, modules/getrandom:
(Depends-on): Don’t depend on ‘open’ on mingw.
(Depends-on): Require AC_CANONICAL_HOST, for host_os.
* modules/getloadavg (Depends-on):
Depend on intprops, open, stdbool, stdlib only if compiling
getloadavg.c.
---
 ChangeLog           | 14 ++++++++++++++
 modules/at-internal |  3 ++-
 modules/getloadavg  |  9 +++++----
 modules/getrandom   |  3 ++-
 4 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 84a1bd472..c6e26120e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2020-06-28  Paul Eggert  <eggert@cs.ucla.edu>
+
+	getrandom: do not depend on ‘open’ on mingw
+	Similarly for at-internal, getloadavg.  These modules do not call
+	the ‘open’ function when they are compiled on mingw.  On mingw,
+	this avoids having to compile open.c when building Emacs, which
+	does its own thing with ‘open’.
+	* modules/at-internal, modules/getloadavg, modules/getrandom:
+	(Depends-on): Don’t depend on ‘open’ on mingw.
+	(Depends-on): Require AC_CANONICAL_HOST, for host_os.
+	* modules/getloadavg (Depends-on):
+	Depend on intprops, open, stdbool, stdlib only if compiling
+	getloadavg.c.
+
 2020-06-28  Bruno Haible  <bruno@clisp.org>
 
 	doc: Add a note about sigprocmask vs. pthread_sigmask.
diff --git a/modules/at-internal b/modules/at-internal
index d58c9b0b4..2a37779f7 100644
--- a/modules/at-internal
+++ b/modules/at-internal
@@ -9,11 +9,12 @@ Depends-on:
 errno
 fcntl-h
 intprops
-open
+open       [case $host_os in mingw*) false;; *) :;; esac]
 sys_stat
 unistd
 
 configure.ac:
+AC_REQUIRE([AC_CANONICAL_HOST])
 
 Makefile.am:
 lib_SOURCES += openat-priv.h openat-proc.c
diff --git a/modules/getloadavg b/modules/getloadavg
index 8adb9a784..21955b782 100644
--- a/modules/getloadavg
+++ b/modules/getloadavg
@@ -7,12 +7,13 @@ m4/getloadavg.m4
 
 Depends-on:
 extensions
-intprops
-open
-stdbool
-stdlib
+intprops  [test $HAVE_GETLOADAVG = 0]
+open      [case $host_os in mingw*) false;; *) test $HAVE_GETLOADAVG = 0;; esac]
+stdbool   [test $HAVE_GETLOADAVG = 0]
+stdlib    [test $HAVE_GETLOADAVG = 0]
 
 configure.ac:
+AC_REQUIRE([AC_CANONICAL_HOST])
 gl_GETLOADAVG
 if test $HAVE_GETLOADAVG = 0; then
   AC_LIBOBJ([getloadavg])
diff --git a/modules/getrandom b/modules/getrandom
index 76437eb5a..f1c359706 100644
--- a/modules/getrandom
+++ b/modules/getrandom
@@ -9,9 +9,10 @@ Depends-on:
 sys_random
 fcntl-h             [test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1]
 minmax              [test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1]
-open                [test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1]
+open                [case $host_os in mingw*) false;; *) test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1;; esac]
 
 configure.ac:
+AC_REQUIRE([AC_CANONICAL_HOST])
 gl_FUNC_GETRANDOM
 if test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1; then
   AC_LIBOBJ([getrandom])
-- 
2.17.1