Merge pull request #4 from oatpp/ci_cmake_version_3_1

ci fix. move cmake version to 3.1

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
 
 ###################################################################################################
 ## These variables are passed to oatpp-module-install.cmake script
@@ -82,6 +82,10 @@ else()
     message("FATAL_ERROR Unknown location to find oatpp '${OATPP_MODULES_LOCATION}'")
 endif()
 
+if(OATPP_DIR_LIB)
+    link_directories(${OATPP_DIR_LIB})
+endif()
+
 ###################################################################################################
 ## get dependencies
 

azure-pipelines.yml

@@ -4,6 +4,27 @@
 # https://aka.ms/yaml
 
 jobs:
+  - job: ubuntu_16_04
+    displayName: 'Build - Ubuntu 16.04'
+    continueOnError: false
+    pool:
+      vmImage: 'Ubuntu 16.04'
+    workspace:
+      clean: all
+    steps:
+      - script: |
+          mkdir build
+      - task: CMake@1
+      - script: |
+          cmake -DOATPP_MODULES_LOCATION=EXTERNAL ..
+          make
+        displayName: 'CMake'
+        workingDirectory: build
+      - script: |
+          make test ARGS="-V"
+        displayName: 'Test'
+        workingDirectory: build
+
   - job: macOS
     displayName: 'Build - macOS-10.13'
     continueOnError: false

cmake/module-utils.cmake

@@ -14,7 +14,7 @@ macro(target_link_oatpp target)
         message("target_link_oatpp(${target}) to found in provided path oatpp lib")
 
         target_include_directories(${target} PUBLIC $<BUILD_INTERFACE:${OATPP_DIR_SRC}>)
-        target_link_directories(${target} PRIVATE ${OATPP_DIR_LIB})
+        #target_link_directories(${target} PRIVATE ${OATPP_DIR_LIB})
         target_link_libraries(${target}
                 PRIVATE oatpp
                 PRIVATE oatpp-test