.travis.sh: do not run eus64-check on osx, FIXME

Author: k-okada

.travis.sh

@@ -66,7 +66,9 @@ else
     export EXIT_STATUS=0; for test_l in irteus/test/*.l; do irteusgl $test_l; export EXIT_STATUS=`expr $? + $EXIT_STATUS`; done;echo "Exit status : $EXIT_STATUS"; [ $EXIT_STATUS == 0 ] || exit 1
 fi
 
-make -C eus/contrib/eus64-check/ || exit 1 # check eus64-check
+if [ "$TRAVIS_OS_NAME" != "osx" ]; then
+    make -C eus/contrib/eus64-check/ || exit 1 # check eus64-check
+fi
 travis_time_end
 
 if [ "$TRAVIS_OS_NAME" == "linux" -a "`uname -m`" == "x86_64" ]; then