When separate 'builddirs', like with 'distcheck', are used, the generated
sources, like the '.c' files from 'gperf', are placed in the 'builddir' and
can not find the include headers in 'srcdir'.
EXTRA_DIST += \
src/login/logind-gperf.gperf
EXTRA_DIST += \
src/login/logind-gperf.gperf
+systemd_logind_CPPFLAGS = \
+ $(AM_CPPFLAGS) \
+ -I $(top_srcdir)/src/login
+
systemd_logind_CFLAGS = \
$(AM_CFLAGS) \
$(DBUS_CFLAGS) \
systemd_logind_CFLAGS = \
$(AM_CFLAGS) \
$(DBUS_CFLAGS) \