Allow compilation on windows

.github/workflows/Linux-clang.yml

@@ -0,0 +1,30 @@
+name: "Linux Clang"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+env:
+  BUILD_TYPE: Release
+  CXX: clang++-9
+
+jobs:
+  job:
+    name: "Linux Clang"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure
+        run: mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=../bin ..
+      - name: Build
+        run: cmake --build build
+      - name: Install
+        run: cmake --install build

.github/workflows/Linux-gcc.yml

@@ -0,0 +1,30 @@
+name: "Linux GCC"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+env:
+  BUILD_TYPE: Release
+  CXX: g++-9
+
+jobs:
+  job:
+    name: "Linux GCC"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure
+        run: mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=../bin ..
+      - name: Build
+        run: cmake --build build
+      - name: Install
+        run: cmake --install build

.github/workflows/Windows.yml

@@ -0,0 +1,27 @@
+name: Windows
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  job:
+    name: Windows
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure
+        run: mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=../bin ..
+      - name: Build
+        run: cmake --build build
+     # - name: Install
+     #   run: cmake --install build
+

.github/workflows/macOS.yml

@@ -0,0 +1,29 @@
+name: macOS
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+env:
+  BUILD_TYPE: Release
+
+jobs:
+  job:
+    name: macOS
+    runs-on: macos-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - name: Configure
+        run: mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=../bin ..
+      - name: Build
+        run: cmake --build build
+      - name: Install
+        run: cmake --install build

CMakeLists.txt

@@ -3,7 +3,7 @@
 # @author Frank Gaede, DESY
 # @author Jan Engels, DESY
 # @author Remi Ete, DESY
-CMAKE_MINIMUM_REQUIRED( VERSION 2.8 FATAL_ERROR )
+CMAKE_MINIMUM_REQUIRED( VERSION 3.4 FATAL_ERROR )
 ########################################################
 
 # project name
@@ -18,6 +18,8 @@ SET( SIO_VERSION_PATCH 2 )
 
 LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake )
 
+SET(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
+
 # options
 OPTION( SIO_EXAMPLES                 "Switch ON to build SIO examples" ON )
 OPTION( INSTALL_DOC                  "Set to OFF to skip build/install Documentation" OFF )

cmake/SIOBuild.cmake

@@ -289,5 +289,7 @@ ENDFOREACH()
 IF( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.9 )
   SET( CMAKE_CXX_FLAGS "-fdiagnostics-color=auto ${CMAKE_CXX_FLAGS}" )
 ENDIF()
-
+IF( "${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+  SET( CMAKE_CXX_FLAGS "/permissive- ${CMAKE_CXX_FLAGS}" )
+ENDIF()
 INSTALL( FILES cmake/MacroCheckPackageLibs.cmake cmake/MacroCheckPackageVersion.cmake DESTINATION lib/cmake )

source/include/sio/api.h

@@ -10,6 +10,7 @@
 #include <string>
 #include <sstream>
 #include <vector>
+#include <algorithm>
 
 namespace sio {
 

source/include/sio/definitions.h

@@ -9,6 +9,9 @@
 #include <map>
 #include <string>
 #include <memory>
+#ifdef _WIN32
+#define NOMINMAX
+#endif
 #ifdef __APPLE__
 #include <_types.h>
 #include <_types/_uint16_t.h>