Problem: no CI for cppzmq

Solution: add travis-ci

.travis.yml

@@ -0,0 +1,34 @@
+# Travis CI script
+
+language: c
+
+os:
+- linux
+#- osx
+
+dist: trusty
+
+cache: ccache
+
+env:
+  matrix:
+#    - BUILD_TYPE=cmake DRAFT=enabled
+    - BUILD_TYPE=cmake
+
+matrix:
+  include:
+  # - env: BUILD_TYPE=cmake DO_CLANG_FORMAT_CHECK=1 CLANG_FORMAT=/usr/local/clang-5.0.0/bin/clang-format
+    # os: linux
+    # addons:
+    # apt:
+      # sources:
+        # - llvm-toolchain-trusty-5.0
+      # packages:
+        # - clang-5.0
+
+sudo: required
+
+# Build and check this project according to the BUILD_TYPE
+script: 
+  - chmod +x ci_build.sh
+  - ./ci_build.sh

ci_build.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+set -x
+
+install_zeromq() {
+    pushd .
+
+    mkdir libzmq
+    cd libzmq
+    curl -L https://github.com/zeromq/libzmq/releases/download/v${ZMQ_VERSION}/zeromq-${ZMQ_VERSION}.tar.gz >zeromq.tar.gz
+    tar -xvzf zeromq.tar.gz
+    cd zeromq-${ZMQ_VERSION}
+
+    mkdir build
+    cd build
+    cmake ..
+    sudo make -j4 install
+
+    popd
+}
+
+# build zeromq first
+
+if [ "${ZMQ_VERSION}" != "" ] ; then install_zeromq ; fi
+
+# build cppzmq
+
+mkdir build
+cd build
+cmake ..
+sudo make -j4 install
+
+# build cppzmq tests
+# cd tests
+# mkdir build
+# cd build
+# cmake ..
+# make -j5 test ARGS="-V"