From f65c49002f7fc39916bba441fe59ef3c6c0ce5c8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Thomas=20Wei=C3=9Fschuh?= <thomas@t-8ch.de>
Date: Mon, 22 May 2023 18:24:47 +0200
Subject: [PATCH] waitpid: only build when pidfd_open is available
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Fixes #2256

[kzak@redhat.com: - fix UL_BUILD_INIT() use]

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Signed-off-by: Karel Zak <kzak@redhat.com>
---
 configure.ac | 1 +
 meson.build  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/configure.ac b/configure.ac
index 6fac9cb4f0..048bbcd782 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1849,6 +1849,7 @@ AM_CONDITIONAL([BUILD_FADVISE], [test "x$build_fadvise" = xyes])
 
 UL_BUILD_INIT([waitpid], [check])
 UL_REQUIRES_LINUX([waitpid])
+UL_REQUIRES_SYSCALL_CHECK([waitpid], [UL_CHECK_SYSCALL([pidfd_open])], [pidfd_open])
 AM_CONDITIONAL([BUILD_WAITPID], [test "x$build_waitpid" = xyes])
 
 UL_BUILD_INIT([getopt], [yes])
diff --git a/meson.build b/meson.build
index c56f83b1fa..641d236747 100644
--- a/meson.build
+++ b/meson.build
@@ -2843,6 +2843,7 @@ if not is_disabler(exe)
   bashcompletions += ['fadvise']
 endif
 
+# XXX: HAVE_PIDFD_OPEN
 exe = executable(
   'waitpid',
   waitpid_sources,
-- 
2.47.3