buildroot/package/procps-ng/0004-build-sys-Fix-define-of-HAVE_PIDFD_OPEN.patch

From 1e2d53e1d86cb75e8f39b42b9a5c409e5d3261ed Mon Sep 17 00:00:00 2001
From: oli-ben <24815225-oli-ben@users.noreply.gitlab.com>
Date: Wed, 27 Nov 2024 20:17:11 +0000
Subject: [PATCH] build-sys: Fix define of HAVE_PIDFD_OPEN

Fix cross-compilation issues when using GCC-12.3
* configure fails to detect that the sysroot does support the pidfd_open
  syscall wrapper
* configure fails to define HAVE_PIDFD_OPEN which is used in pgrep.c,
  so it fails building, because __NR_pidfd_open is then undefined

Upstream: https://gitlab.com/procps-ng/procps/-/commit/587efb47df7ddbfda4e6abdd1e7792a2531a238f

Signed-off-by: Scott Fan <fancp2007@gmail.com>
[Scott: backported to version 4.0.4]
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 0719fcd1..6242a8f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -317,8 +317,8 @@ AC_ARG_ENABLE([pidwait],
 )
 AM_CONDITIONAL(BUILD_PIDWAIT, test "x$enable_pidwait" = xyes)
 AC_MSG_CHECKING([for pidfd_open()])
-AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[ [pidfd_open(1,1)]]])],
-  have_pidfd_open=yes; AC_MSG_RESULT([yes]) ,
+AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[pidfd_open(1,1)]])],
+  have_pidfd_open=yes; AC_DEFINE(HAVE_PIDFD_OPEN, 1, [pidfd_open is defined]) AC_MSG_RESULT([yes]),
   have_pidfd_open=no; AC_MSG_RESULT([no])
   )
 
-- 
2.43.0