KERN_PROC_PATHNAME workaround

Since we do not provide KERN_PROC_PATHNAME I picked up robets@'s "hack"
form www/chromium/patches/patch-base_base_paths_posix_cc.

It certainly won't work in all cases, but it's enough for me in this context.
This implementation only makes sense if we don't call it too often.

Is KERN_PROC_PATHNAME something we generally don't want? Or was it
simply not implied?

Rafael

Index: kwin/Makefile
===================================================================
RCS file: /cvs/ports/x11/kde-plasma/kwin/Makefile,v
diff -u -p -r1.41 Makefile
--- kwin/Makefile 4 Jan 2026 09:12:01 -0000 1.41
+++ kwin/Makefile 4 Jan 2026 11:55:27 -0000
@@ -1,6 +1,6 @@
COMMENT = Wayland window manager for KDE Plasma Desktops
DISTNAME = kwin-${VERSION}
-REVISION = 2
+REVISION = 3

SHARED_LIBS += kcmkwincommon 1.0 # 0.0
SHARED_LIBS += kwin 1.0 # 0.0
Index: kwin/patches/patch-src_utils_executable_path_sysctl_cpp
===================================================================
RCS file: /cvs/ports/x11/kde-plasma/kwin/patches/patch-src_utils_executable_path_sysctl_cpp,v
diff -u -p -r1.1 patch-src_utils_executable_path_sysctl_cpp
--- kwin/patches/patch-src_utils_executable_path_sysctl_cpp 4 Jan 2026 08:03:42 -0000 1.1
+++ kwin/patches/patch-src_utils_executable_path_sysctl_cpp 4 Jan 2026 11:55:27 -0000
@@ -2,11 +2,103 @@ https://invent.kde.org/plasma/kwin/-/mer
Index: src/utils/executable_path_sysctl.cpp
--- src/utils/executable_path_sysctl.cpp.orig
+++ src/utils/executable_path_sysctl.cpp
-@@ -12,11 +12,13 @@
+@@ -7,16 +7,105 @@
+ #include <sys/param.h>
+ #include <sys/sysctl.h>
+ #include <sys/types.h>
++#if defined(__OpenBSD__)
++#include <QDebug>
+
++#include <kvm.h>
++#include <limits.h>
++#include <stdlib.h>
++#include <string.h>
++#include <sys/stat.h>
++#include <unistd.h>
++