message: Only build tgz packages on most platform
diff: @@ -260,7 +260,7 @@ def doBuildWindows(String buildType, boolean isUWP, String arch) {
  bat """
  cmake ${cmakeDefinitions} -DREALM_BUILD_LIB_ONLY=1 -G \"Visual Studio 14 2015${archSuffix}\" -DCMAKE_BUILD_TYPE=${buildType} ..
  cmake --build . --config ${buildType}
  - cpack -C ${buildType}
  + cpack -C ${buildType} -D CPACK_GENERATOR="TGZ"
  """
  }
  }
  @@ -333,7 +333,7 @@ def doBuildNodeInDocker(String buildType, boolean isPublishingRun) {
  -DCMAKE_BUILD_TYPE=${buildType} \\
  -GNinja ..
  ninja
  - cpack
  + cpack -D CPACK_GENERATOR="TGZ"
  """
  dir('build-dir') {
  if (isPublishingRun) {
  @@ -371,7 +371,7 @@ def doBuildNodeInOsx(String libType, String buildType, boolean isPublishingRun)
  -DCMAKE_BUILD_TYPE=${buildType} \\
  -GNinja ..
  ninja
  - cpack
  + cpack -D CPACK_GENERATOR="TGZ"
  """
  dir('build-dir') {
  if (isPublishingRun) {
  