Build Sample Nodes By Default to Fix Github Action (#332)

* Fix github action

* Change working directory in github action step

* Build samples by default

Author: sarcasticnature

.github/workflows/build_ubuntu.yml

@@ -13,7 +13,8 @@ jobs:
     - name: apt
       run: sudo apt-get update && sudo apt-get install -yq libzmq3-dev libdw-dev libgtest-dev cmake
     - name: Install gtest manually
-      run: cd /usr/src/gtest && sudo cmake CMakeLists.txt && sudo make && sudo cp lib/*.a /usr/lib 
+      working-directory: /usr/src/gtest
+      run: sudo cmake CMakeLists.txt && sudo make && sudo cp lib/*.a /usr/lib
     # build project
     - name: mkdir
       run: mkdir build

CMakeLists.txt

@@ -42,6 +42,7 @@ set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
 #---- project configuration ----
 option(BUILD_EXAMPLES   "Build tutorials and examples" ON)
+option(BUILD_SAMPLES    "Build sample nodes" ON)
 option(BUILD_UNIT_TESTS "Build the unit tests" ON)
 option(BUILD_TOOLS "Build commandline tools" ON)
 option(BUILD_SHARED_LIBS "Build shared libraries" ON)