make the package build on armv7hl

FIXME: The resulting binaries cannot work properly!!!

libnice.spec

@@ -83,6 +83,10 @@ export CFLAGS="$RPM_OPT_FLAGS"
 # cannot work properly!!!
 CFLAGS="$CFLAGS -Wno-error=cast-function-type"
 %endif
+%ifarch armv7hl
+# FIXME: basically the same problem on armv7hl with both Fedora 27 and 28
+CFLAGS="$CFLAGS -Wno-error=cast-align"
+%endif
 
 %configure --disable-static \
 %if %{with gst010}
@@ -135,6 +139,7 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 
 %changelog
 * Fri Feb 09 2018 Kamil Dudka <kdudka@redhat.com> - 0.1.14-4.20171128gitfb2f1f7
+- make the package build on armv7hl
 - make the package build on Fedora 28
 - avoid build failure if gstreamer-plugins-base-devel is installed
 - move autoreconf invocation to %%prep