riscv64: Disable gnulib tests on riscv64 architecture.

locking test fails with:

../../build/ac-aux/test-driver: line 107: 26972 Aborted                 "$@" > $log_file 2>&1
FAIL: test-lock

which is probably a riscv64 kernel bug, but is irrelevant for Augeas.

augeas.spec

@@ -1,6 +1,6 @@
 Name:           augeas
 Version:        1.7.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        A library for changing configuration files
 
 Group:          System Environment/Libraries
@@ -50,7 +50,11 @@ read files.
 %setup -q
 
 %build
-%configure --disable-static
+%configure \
+%ifarch riscv64
+    --disable-gnulib-tests \
+%endif
+    --disable-static
 make %{?_smp_mflags}
 
 %check
@@ -105,6 +109,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/pkgconfig/augeas.pc
 
 %changelog
+* Sat Nov 12 2016 Richard W.M. Jones <rjones@redhat.com> - 1.7.0-2
+- riscv64: Disable gnulib tests on riscv64 architecture.
+
 * Wed Nov 09 2016 Dominic Cleal <dominic@cleal.org> - 1.7.0-1
 - Update to 1.7.0