From 133f7349c978ccef087a163112ab91e19c3b11f0 Mon Sep 17 00:00:00 2001
From: Dale Glass <dale@daleglass.net>
Date: Wed, 22 Jun 2022 22:20:16 +0200
Subject: [PATCH] Add FindJournald cmake module

From https://github.com/fluent/fluent-bit/blob/master/cmake/FindJournald.cmake
---
 cmake/modules/FindJournald.cmake | 45 ++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 cmake/modules/FindJournald.cmake

diff --git a/cmake/modules/FindJournald.cmake b/cmake/modules/FindJournald.cmake
new file mode 100644
index 0000000000..f5a3a832b2
--- /dev/null
+++ b/cmake/modules/FindJournald.cmake
@@ -0,0 +1,45 @@
+# - Try to find Journald library.
+# Once done this will define
+#
+#  JOURNALD_FOUND - system has Journald
+#  JOURNALD_INCLUDE_DIR - the Journald include directory
+#  JOURNALD_LIBRARIES - Link these to use Journald
+#  JOURNALD_DEFINITIONS - Compiler switches required for using Journald
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+# Copyright (c) 2015 David Edmundson
+#
+
+# use pkg-config to get the directories and then use these values
+# in the FIND_PATH() and FIND_LIBRARY() calls
+find_package(PkgConfig)
+pkg_check_modules(PC_JOURNALD QUIET systemd)
+
+set(JOURNALD_FOUND ${PC_JOURNALD_FOUND})
+set(JOURNALD_DEFINITIONS ${PC_JOURNALD_CFLAGS_OTHER})
+
+find_path(JOURNALD_INCLUDE_DIR NAMES systemd/sd-journal.h
+  PATHS
+  ${PC_JOURNALD_INCLUDEDIR}
+  ${PC_JOURNALD_INCLUDE_DIRS}
+)
+
+find_library(JOURNALD_LIBRARY NAMES systemd
+  PATHS
+  ${PC_JOURNALD_LIBDIR}
+  ${PC_JOURNALD_LIBRARY_DIRS}
+)
+
+set(JOURNALD_LIBRARIES ${JOURNALD_LIBRARY})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Journald DEFAULT_MSG JOURNALD_LIBRARY JOURNALD_INCLUDE_DIR)
+
+include(FeatureSummary)
+set_package_properties(Journald PROPERTIES URL https://github.com/systemd
+  DESCRIPTION "Systemd logging daemon")
+
+# show the JOURNALD_INCLUDE_DIR and JOURNALD_LIBRARY variables only in the advanced view
+mark_as_advanced(JOURNALD_INCLUDE_DIR JOURNALD_LIBRARY)