Disable all tests on RISC-V (riscv64)

BUILDSTDERR: checking python testcase overload_extend_c java_lib_arrays_dimensionless_wrap.cxx: In function 'jdouble Java_java_1lib_1arrays_1dimensionless_java_1lib_1arrays_1dimensionlessJNI_arr_1ll(JNIEnv*, jclass, jlongArray, jint)':
BUILDSTDERR: java_lib_arrays_dimensionless_wrap.cxx:1162:47: error: invalid conversion from 'long long int**' to 'jlong**' {aka 'long int**'} [-fpermissive]
BUILDSTDERR:  1162 |   if (!SWIG_JavaArrayInLonglong(jenv, &jarr1, (long long **)&arg1, jarg1)) return 0;
BUILDSTDERR:       |                                               ^~~~~~~~~~~~~~~~~~~
BUILDSTDERR:       |                                               |
BUILDSTDERR:       |                                               long long int**
BUILDSTDERR: java_lib_arrays_dimensionless_wrap.cxx:714:74: note:   initializing argument 3 of 'int SWIG_JavaArrayInLonglong(JNIEnv*, jlong**, jlong**, jlongArray)'
BUILDSTDERR:   714 | static int SWIG_JavaArrayInLonglong (JNIEnv *jenv, jlong **jarr, jlong **carr, jlongArray input) {
BUILDSTDERR:       |                                                                  ~~~~~~~~^~~~
BUILDSTDERR: java_lib_arrays_dimensionless_wrap.cxx:1166:45: error: invalid conversion from 'long long int*' to 'jlong*' {aka 'long int*'} [-fpermissive]
BUILDSTDERR:  1166 |   SWIG_JavaArrayArgoutLonglong(jenv, jarr1, (long long *)arg1, jarg1);
BUILDSTDERR:       |                                             ^~~~~~~~~~~~~~~~~
BUILDSTDERR:       |                                             |
BUILDSTDERR:       |                                             long long int*
BUILDSTDERR: java_lib_arrays_dimensionless_wrap.cxx:735:77: note:   initializing argument 3 of 'void SWIG_JavaArrayArgoutLonglong(JNIEnv*, jlong*, jlong*, jlongArray)'
BUILDSTDERR:   735 | static void SWIG_JavaArrayArgoutLonglong (JNIEnv *jenv, jlong *jarr, jlong *carr, jlongArray input) {
BUILDSTDERR:       |                                                                      ~~~~~~~^~~~
BUILDSTDERR: make[2]: *** [../../../../Examples/Makefile:609: java_cpp] Error 1
BUILDSTDERR: make[1]: *** [Makefile:87: java_lib_arrays_dimensionless.cpptest] Error 2

Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>

swig.spec

@@ -53,7 +53,7 @@
 Summary: Connects C/C++/Objective C to some high-level programming languages
 Name:    swig
 Version: 4.0.0
-Release: 5%{?dist}
+Release: 5.0.riscv64%{?dist}
 License: GPLv3+ and BSD
 URL:     http://swig.sourceforge.net/
 Source0: http://downloads.sourceforge.net/project/swig/swig/swig-%{version}/swig-%{version}.tar.gz
@@ -229,10 +229,12 @@ done
 ;
 make %{?_smp_mflags}
 
+%ifnarch riscv64
 %if %{with testsuite}
 # Test suite
 make check
 %endif
+%endif
 
 %install
 # Remove all arch dependent files in Examples/ created during tests
@@ -349,6 +351,9 @@ install -pm 644 Tools/swig.gdb %{buildroot}%{_datadir}/%{name}/gdb
 %{_datadir}/%{name}/gdb
 
 %changelog
+* Wed Aug 21 2019 David Abdurachmanov <david.abdurachmanov@sifive.com> - 4.0.0-5.0.riscv64
+- Disable all tests on RISC-V (riscv64)
+
 * Mon Aug 12 2019 Jitka Plesnikova <jplesnik@redhat.com> - 4.0.0-5
 - Backport upstream fix for Go tests (BZ#1736731)