[evince/wip/gpoo/drop-systemd-pkg-config] build: drop pkg-config check for systemduserunitdir

[Germán Poo-Caamaño <gpoo src gnome org>]

commit c63ec4c79ae66bb6fed909acc66fd1ae09c3148d
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Wed Oct 10 13:35:36 2018 -0300

    build: drop pkg-config check for systemduserunitdir
    
    In autotools, we explcitly avoid using pkg-config for detecting
    systemduserunitdir becuse it usually defaults to /usr, which make
    local installations a pain.
    
    See #937 for a previous discussion about it.
    
    Makes meson behave similar to autotools for systemduserunitdir.
    
    Fixes #999

 meson.build | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index b64415ef..dcf34b5b 100644
--- a/meson.build
+++ b/meson.build
@@ -233,10 +233,7 @@ systemd_user_unit_dir = get_option('systemduserunitdir')
 install_systemd_user_unit_dir = (systemd_user_unit_dir != 'no')
 
 if install_systemd_user_unit_dir and systemd_user_unit_dir == ''
-  systemd_dep = dependency('systemd', required: false)
-
-  assert(systemd_dep.found(), 'systemd required but not found, please provide a valid systemd user unit dir 
or disable it')
-  systemd_user_unit_dir = systemd_dep.get_pkgconfig_variable('systemduserunitdir')
+  systemd_user_unit_dir = join_paths(ev_prefix, 'lib', 'systemd', 'user')
 endif
 
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