[gnome-shell] Update configure.ac to check for libsystemd

[Michael Biebl <mbiebl src gnome org>]

commit 35889a0f7d2a0092985936a4be98dd5dbc8ffbeb
Author: Michael Biebl <biebl debian org>
Date:   Mon Jun 15 21:48:00 2015 +0200

    Update configure.ac to check for libsystemd
    
    https://bugzilla.gnome.org/show_bug.cgi?id=751016

 configure.ac |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 867f140..1fc68b8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -63,8 +63,8 @@ AC_ARG_ENABLE([systemd],
               [enable_systemd=$enableval],
               [enable_systemd=auto])
 AS_IF([test x$enable_systemd != xno], [
-  AC_MSG_CHECKING([for libsystemd-journal])
-  PKG_CHECK_EXISTS([libsystemd-journal],
+  AC_MSG_CHECKING([for libsystemd])
+  PKG_CHECK_EXISTS([libsystemd],
                    [have_systemd=yes
                     AC_DEFINE([HAVE_SYSTEMD], [1], [Define if we have systemd])],
                    [have_systemd=no])
@@ -106,7 +106,7 @@ SHARED_PCS="gio-unix-2.0 >= $GIO_MIN_VERSION
             polkit-agent-1 >= $POLKIT_MIN_VERSION
             gcr-base-3 >= $GCR_MIN_VERSION"
 if test x$have_systemd = xyes; then
-  SHARED_PCS="${SHARED_PCS} libsystemd-journal"
+  SHARED_PCS="${SHARED_PCS} libsystemd"
 fi
 
 PKG_CHECK_MODULES(GNOME_SHELL, $SHARED_PCS)