Enable compiling on macOS 64-bit using llvm

Closes #6

.github/workflows/main.yml

@@ -44,3 +44,19 @@ jobs:
         with:
           name: bin
           path: addons/godot_xterm/native/bin/*.dll
+  build-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - name: Install SCons software construction tool
+        run: brew install scons
+      - name: Buid for macOS 64-bit using llvm
+        run: |
+          cd addons/godot_xterm/native
+          scons platform=osx target=release bits=64
+      - uses: actions/upload-artifact@v2
+        with:
+          name: bin
+          path: addons/godot_xterm/native/bin/*.dylib

addons/godot_xterm/native/SConstruct

@@ -194,8 +194,7 @@ Default(libtsm)
 
 
 # Build libgodot-xterm.
-#env.Append(CCFLAGS=['-std=c++14'])
+env.Append(CXXFLAGS=['-std=c++14'])
-
 env.Append(CPPPATH=[
     'src/',
     'external/libtsm/build/src/tsm',

addons/godot_xterm/native/src/pseudoterminal.cpp

@@ -1,9 +1,17 @@
 #include "pseudoterminal.h"
-#include <pty.h>
 #include <unistd.h>
 #include <sys/wait.h>
 #include <termios.h>
 
+// Platform specific includes.
+#if defined(PLATFORM_LINUX)
+#include <pty.h>
+#endif
+#if defined(PLATFORM_OSX)
+#include <util.h>
+#include <sys/ioctl.h>
+#endif
+
 using namespace godot;
 
 void Pseudoterminal::_register_methods()