.babelrc

{
  "presets": ["es2015", "react"]
}

gulpfile.js

var gulp = require('gulp');
var browserify = require('browserify');
var babelify = require('babelify');
var source = require('vinyl-source-stream');

gulp.task('build', function () {
    return browserify({entries: './main.jsx', extensions: ['.jsx'], debug: true})
        .transform(babelify)
        .bundle()
        .pipe(source('bundle.js'))
        .pipe(gulp.dest('dist'));
});

gulp.task('watch', ['build'], function () {
    gulp.watch('*.jsx', ['build']);
});

gulp.task('default', ['watch']);

package.json

{
  "name": "pomestam",
  "version": "1.0.0",
  "description": "",
  "main": "bundle.js",
  "dependencies": {
    "babel-preset-es2015": "^6.1.18",
    "babelify": "^7.2.0",
    "browserify": "^12.0.1",
    "diff": "^2.2.1",
    "gulp": "^3.9.0",
    "uniq": "^1.0.1",
    "vinyl-source-stream": "^1.1.0"
  },
  "devDependencies": {
    "babel-plugin-react-transform": "^1.1.1",
    "react-transform-catch-errors": "^1.0.0",
    "react-transform-hmr": "^1.0.1"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC"
}