starting with NetworkManager-0.9.9.95-1.git20140609.fc21 NetworkManager fails to build on s390(x) because it made ModemManager-glib-devel a hard requirement.

from build.log
...
checking for NSS... yes
checking pppd/pppd.h usability... yes
checking pppd/pppd.h presence... yes
checking for pppd/pppd.h... yes
checking for pppd... /usr/sbin/pppd
checking for pppoe... no
checking for MM_GLIB... no
configure: error: Couldn't find libmm-glib
error: Bad exit status from /var/tmp/rpm-tmp.mqROss (%build)
RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.mqROss (%build)
Child return code was: 1
EXCEPTION: Command failed. See logs for output.
...

for full logs please see http://s390.koji.fedoraproject.org/koji/taskinfo?taskID=1488265


Either MM-glib must be an optional dependency in configure or we need

eg.
diff --git a/NetworkManager.spec b/NetworkManager.spec
index 969cede..301a52b 100644
--- a/NetworkManager.spec
+++ b/NetworkManager.spec
@@ -145,7 +145,7 @@ BuildRequires: wimax-devel
 BuildRequires: systemd >= 200-3 systemd-devel
 BuildRequires: libsoup-devel
 BuildRequires: libndp-devel >= 1.0
-%if 0%{?with_wwan} && (0%{?rhel} || (0%{?fedora} && 0%{?fedora} > 19))
+%if 0%{?rhel} || (0%{?fedora} && 0%{?fedora} > 19)
 BuildRequires: ModemManager-glib-devel >= 1.0
 %endif
 %if 0%{?with_nmtui}