From 691b56e7df4cec656cf340cd905ed649ae464c85 Mon Sep 17 00:00:00 2001
From: Eero Tamminen <eero.t.tamminen@intel.com>
Date: Thu, 14 Mar 2024 16:39:52 +0200
Subject: [PATCH] gpu_sysman: use glob.h/libgen.h only if they are present

Signed-off-by: Eero Tamminen <eero.t.tamminen@intel.com>
---
 configure.ac     |  1 +
 src/gpu_sysman.c | 11 +++++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6d42a798b..65eafd5eb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -163,6 +163,7 @@ AC_CHECK_HEADERS_ONCE([ \
   fs_info.h \
   fshelp.h \
   grp.h \
+  glob.h \
   kstat.h \
   kvm.h \
   libgen.h \
diff --git a/src/gpu_sysman.c b/src/gpu_sysman.c
index 3dff3bd6a..eaacb5685 100644
--- a/src/gpu_sysman.c
+++ b/src/gpu_sysman.c
@@ -42,21 +42,24 @@
 #include <stdlib.h>
 #include <time.h>
 
-#include <level_zero/ze_api.h>
 #include <level_zero/zes_api.h>
 
+/* includes config.h with HAVE_*_H defines, needed by check below */
+#include "collectd.h"
+
+#if HAVE_GLOB_H && HAVE_LIBGEN_H
 /* "dev_file" label (for k8s Intel GPU plugin) and "pci_dev" label
  * (for k8s Intel resource driver) need (POSIX.1-2001/-2008)
  *  glob() + basename() functions.
  */
 #define ADD_DEV_FILE 1
-#if ADD_DEV_FILE
 #include <glob.h>
 #include <libgen.h>
+#else
+#pragma message                                                                \
+    "glob / libgen headers missing => no 'dev_file' / 'pci_dev' labels"
 #endif
 
-#include "collectd.h"
-/* comment avoiding local clang-format conflict with collectd CI one */
 #include "plugin.h"
 #include "utils/common/common.h"
 
-- 
2.47.2