From: Christopher Brannon <[email protected]>

This way people can easily disable systemd support locally.
---
 configure.in | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/configure.in b/configure.in
index 059058b..b539cda 100644
--- a/configure.in
+++ b/configure.in
@@ -343,17 +343,24 @@ dnl       $as_echo "in order to autodetect network 
scanners in kodakaio."
 dnl    with_cups="no"
 dnl fi
 
-dnl added by llagendijk 12/7/2012 to detect systemd for saned
-$as_echo_n "Checking for systemd..."
-if test -e /usr/include/systemd/sd-daemon.h ; then
-    AC_DEFINE(HAVE_SYSTEMD, 1, [Is /usr/include/systemd/sd-daemon.h 
available?])
-    with_systemd="yes"
-    SYSTEMD_LIBS=" -lsystemd-daemon"
-    AC_SUBST(SYSTEMD_LIBS)
-    $as_echo "yes"
-else
-    with_systemd="no"
-    $as_echo "no"
+AC_ARG_WITH(systemd,
+       AC_HELP_STRING([--with-systemd], [enable systemd support 
@<:@default=yes@:>@]))
+if test "x$with_systemd" != xno ; then
+    dnl added by llagendijk 12/7/2012 to detect systemd for saned
+    $as_echo_n "Checking for systemd..."
+    if test -e /usr/include/systemd/sd-daemon.h ; then
+       AC_DEFINE(HAVE_SYSTEMD, 1, [Is /usr/include/systemd/sd-daemon.h 
available?])
+       have_systemd="yes"
+       SYSTEMD_LIBS=" -lsystemd-daemon"
+       AC_SUBST(SYSTEMD_LIBS)
+       $as_echo "yes"
+    else
+       have_systemd="no"
+       $as_echo "no"
+       if test "x$with_systemd" = xyes; then
+           AC_MSG_ERROR([Systemd support was requested but systemd was not 
found])
+       fi
+    fi
 fi
 
 dnl ***********
-- 
2.4.4


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