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From 9cad09f8df8e080189fe274a6032c8fa70f0c2aa Mon Sep 17 00:00:00 2001
From: Christof Schmitt <cs@samba.org>
Date: Fri, 20 Mar 2015 12:13:14 -0700
Subject: [PATCH 1/2] build: Move systemd checks to lib/util

Only lib/util uses the systemd library, so it makes sense to have the
checks there. This also removes the need for the ctdb build script to
specify an empty tag for the systemd library.

Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>

(cherry picked from commit 0509790ec3696e09f6d5e6db969e46e8fd975efb)
---
 ctdb/wscript               |  2 --
 lib/util/wscript           |  8 ++++++++
 lib/util/wscript_configure | 14 ++++++++++++++
 wscript                    | 22 ----------------------
 4 files changed, 22 insertions(+), 24 deletions(-)

diff --git a/ctdb/wscript b/ctdb/wscript
index 3e2a992..6f5f469 100755
--- a/ctdb/wscript
+++ b/ctdb/wscript
@@ -212,8 +212,6 @@ def configure(conf):
             conf.ADD_EXTRA_INCLUDES('#ctdb')
         conf.ADD_EXTRA_INCLUDES('#lib #lib/replace')
 
-        conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
-
         del(conf.env.defines['PYTHONDIR'])
         del(conf.env.defines['PYTHONARCHDIR'])
 
diff --git a/lib/util/wscript b/lib/util/wscript
index d296e75..2371689 100644
--- a/lib/util/wscript
+++ b/lib/util/wscript
@@ -1,3 +1,11 @@
 def set_options(opt):
     ''' This is a bit strange, but disable is the flag, not enable. '''
     opt.add_option('--disable-fault-handling', action='store_true', dest='disable_fault_handling', help=('disable the fault handlers'), default=False)
+
+    opt.add_option('--with-systemd',
+                   help=("Enable systemd integration"),
+                   action='store_true', dest='enable_systemd')
+
+    opt.add_option('--without-systemd',
+                   help=("Disable systemd integration"),
+                   action='store_false', dest='enable_systemd')
diff --git a/lib/util/wscript_configure b/lib/util/wscript_configure
index 1270ab3..1cfba3e 100644
--- a/lib/util/wscript_configure
+++ b/lib/util/wscript_configure
@@ -99,3 +99,17 @@ conf.CHECK_CODE('struct statvfs buf; buf.f_flags = 0',
                 headers='sys/statvfs.h',
                 local_include=False,
                 execute=False)
+
+if Options.options.enable_systemd != False:
+    conf.CHECK_CFG(package='libsystemd-daemon', args='--cflags --libs',
+                   msg='Checking for libsystemd-daemon', uselib_store="SYSTEMD-DAEMON")
+    conf.CHECK_HEADERS('systemd/sd-daemon.h', lib='systemd-daemon')
+    conf.CHECK_LIB('systemd-daemon', shlib=True)
+
+if (conf.CONFIG_SET('HAVE_SYSTEMD_SD_DAEMON_H') and
+    conf.CONFIG_SET('HAVE_LIBSYSTEMD_DAEMON')):
+    conf.DEFINE('HAVE_SYSTEMD', '1')
+    conf.env['ENABLE_SYSTEMD'] = True
+else:
+    conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
+    conf.undefine('HAVE_SYSTEMD')
diff --git a/wscript b/wscript
index ad2e2a8..f4241f1 100644
--- a/wscript
+++ b/wscript
@@ -70,14 +70,6 @@ def set_options(opt):
                   help=("Disable RELRO builds"),
                   action="store_false", dest='enable_relro')
 
-    opt.add_option('--with-systemd',
-                   help=("Enable systemd integration"),
-                   action='store_true', dest='enable_systemd')
-
-    opt.add_option('--without-systemd',
-                   help=("Disable systemd integration"),
-                   action='store_false', dest='enable_systemd')
-
     gr = opt.option_group('developer options')
 
     opt.tool_options('python') # options for disabling pyc or pyo compilation
@@ -214,20 +206,6 @@ def configure(conf):
                          msg="Checking compiler for full RELRO support"):
             conf.env['ENABLE_RELRO'] = True
 
-    if Options.options.enable_systemd != False:
-        conf.check_cfg(package='libsystemd-daemon', args='--cflags --libs',
-                       msg='Checking for libsystemd-daemon', uselib_store="SYSTEMD-DAEMON")
-        conf.CHECK_HEADERS('systemd/sd-daemon.h', lib='systemd-daemon')
-        conf.CHECK_LIB('systemd-daemon', shlib=True)
-
-    if (conf.CONFIG_SET('HAVE_SYSTEMD_SD_DAEMON_H') and
-        conf.CONFIG_SET('HAVE_LIBSYSTEMD_DAEMON')):
-        conf.DEFINE('HAVE_SYSTEMD', '1')
-        conf.env['ENABLE_SYSTEMD'] = True
-    else:
-        conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
-        conf.undefine('HAVE_SYSTEMD')
-
     conf.SAMBA_CONFIG_H('include/config.h')
 
 def etags(ctx):
-- 
2.3.5


From 42e03b23cf8850cfb6df383a6b69627ffe1ce369 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Tue, 7 Apr 2015 16:30:30 +0200
Subject: [PATCH 2/2] waf: Fix systemd detection

https://bugzilla.samba.org/show_bug.cgi?id=11200

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>

(cherry picked from commit 5ee27b4ead57c15db7168d80f6fdf821663c44fc)
---
 lib/util/become_daemon.c   | 12 ++++++------
 lib/util/wscript_build     |  2 +-
 lib/util/wscript_configure | 27 +++++++++++++++------------
 3 files changed, 22 insertions(+), 19 deletions(-)

diff --git a/lib/util/become_daemon.c b/lib/util/become_daemon.c
index 78bebfc..4622971 100644
--- a/lib/util/become_daemon.c
+++ b/lib/util/become_daemon.c
@@ -24,7 +24,7 @@
 #include "includes.h"
 #include "system/filesys.h"
 #include "system/locale.h"
-#if HAVE_SYSTEMD
+#if HAVE_LIBSYSTEMD_DAEMON
 #include <systemd/sd-daemon.h>
 #endif
 #include "lib/util/close_low_fd.h"
@@ -69,9 +69,9 @@ _PUBLIC_ void become_daemon(bool do_fork, bool no_process_group, bool log_stdout
 	if (do_fork) {
 		newpid = fork();
 		if (newpid) {
-#if HAVE_SYSTEMD
+#if HAVE_LIBSYSTEMD_DAEMON
 			sd_notifyf(0, "READY=0\nSTATUS=Starting process...\nMAINPID=%lu", (unsigned long) newpid);
-#endif /* HAVE_SYSTEMD */
+#endif /* HAVE_LIBSYSTEMD_DAEMON */
 			_exit(0);
 		}
 	}
@@ -98,7 +98,7 @@ _PUBLIC_ void become_daemon(bool do_fork, bool no_process_group, bool log_stdout
 
 _PUBLIC_ void exit_daemon(const char *msg, int error)
 {
-#ifdef HAVE_SYSTEMD
+#ifdef HAVE_LIBSYSTEMD_DAEMON
 	if (msg == NULL) {
 		msg = strerror(error);
 	}
@@ -117,7 +117,7 @@ _PUBLIC_ void daemon_ready(const char *name)
 	if (name == NULL) {
 		name = "Samba";
 	}
-#ifdef HAVE_SYSTEMD
+#ifdef HAVE_LIBSYSTEMD_DAEMON
 	sd_notifyf(0, "READY=1\nSTATUS=%s: ready to serve connections...", name);
 #endif
 	DEBUG(0, ("STATUS=daemon '%s' finished starting up and ready to serve "
@@ -129,7 +129,7 @@ _PUBLIC_ void daemon_status(const char *name, const char *msg)
 	if (name == NULL) {
 		name = "Samba";
 	}
-#ifdef HAVE_SYSTEMD
+#ifdef HAVE_LIBSYSTEMD_DAEMON
 	sd_notifyf(0, "\nSTATUS=%s: %s", name, msg);
 #endif
 	DEBUG(0, ("STATUS=daemon '%s' : %s", name, msg));
diff --git a/lib/util/wscript_build b/lib/util/wscript_build
index 5db7e35..cb9e8e5 100755
--- a/lib/util/wscript_build
+++ b/lib/util/wscript_build
@@ -54,7 +54,7 @@ if not bld.env.SAMBA_UTIL_CORE_ONLY:
                     tevent_debug.c util_process.c memcache.c''',
                   deps='samba-util-core DYNCONFIG close-low-fd tini tiniparser',
 
-                  public_deps='talloc tevent execinfo pthread LIBCRYPTO charset util_setid systemd-daemon',
+                  public_deps='talloc tevent execinfo pthread LIBCRYPTO charset util_setid systemd systemd-daemon',
                   public_headers='debug.h attr.h byteorder.h data_blob.h memory.h safe_string.h time.h talloc_stack.h xfile.h dlinklist.h samba_util.h string_wrappers.h idtree.h idtree_random.h blocking.h signal.h substitute.h fault.h',
                   header_path= [ ('dlinklist.h samba_util.h', '.'), ('*', 'util') ],
                   local_include=False,
diff --git a/lib/util/wscript_configure b/lib/util/wscript_configure
index 1cfba3e..8d8dc87 100644
--- a/lib/util/wscript_configure
+++ b/lib/util/wscript_configure
@@ -100,16 +100,19 @@ conf.CHECK_CODE('struct statvfs buf; buf.f_flags = 0',
                 local_include=False,
                 execute=False)
 
+#
+# systemd removed the libsystemd-daemon and libsystemd-journal libraries. In newer
+# versions it is only libsystemd. As waf pkg-config handling does not provide
+# targets which could be used as a dependency based on the package name we need
+# to look for them on our own. This enabled one of the library targets based on
+# which version we detect.
+#
+conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
+conf.SET_TARGET_TYPE('systemd-journal', 'EMPTY')
+conf.SET_TARGET_TYPE('systemd', 'EMPTY')
+
 if Options.options.enable_systemd != False:
-    conf.CHECK_CFG(package='libsystemd-daemon', args='--cflags --libs',
-                   msg='Checking for libsystemd-daemon', uselib_store="SYSTEMD-DAEMON")
-    conf.CHECK_HEADERS('systemd/sd-daemon.h', lib='systemd-daemon')
-    conf.CHECK_LIB('systemd-daemon', shlib=True)
-
-if (conf.CONFIG_SET('HAVE_SYSTEMD_SD_DAEMON_H') and
-    conf.CONFIG_SET('HAVE_LIBSYSTEMD_DAEMON')):
-    conf.DEFINE('HAVE_SYSTEMD', '1')
-    conf.env['ENABLE_SYSTEMD'] = True
-else:
-    conf.SET_TARGET_TYPE('systemd-daemon', 'EMPTY')
-    conf.undefine('HAVE_SYSTEMD')
+    conf.check_cfg(package='libsystemd-daemon', args='--cflags --libs',
+                   msg='Checking for libsystemd-daemon')
+    if not conf.CHECK_LIB('systemd-daemon', shlib=True):
+        conf.CHECK_LIB('systemd', shlib=True)
-- 
2.3.5