Add scons build file

SConstruct

@@ -0,0 +1,140 @@
+#!python
+
+import os, sys, platform, json
+
+
+def add_sources(sources, dirpath, extension):
+  for f in os.listdir(dirpath):
+      if f.endswith('.' + extension):
+          sources.append(dirpath + '/' + f)
+
+
+env = Environment()
+host_platform = platform.system()
+target_platform = ARGUMENTS.get('p', ARGUMENTS.get('platform', 'linux'))
+target_arch = ARGUMENTS.get('a', ARGUMENTS.get('arch', '64'))
+# default to debug build, must be same setting as used for cpp_bindings
+target = ARGUMENTS.get('target', 'debug')
+# Local dependency paths, adapt them to your setup
+godot_headers = ARGUMENTS.get('headers', '../godot_headers')
+godot_cpp = ARGUMENTS.get('godot-cpp', '../godot-cpp')
+result_path = 'bin'
+result_name = 'webrtc_native'
+
+if target_platform == 'linux':
+    result_name += '.linux.' + target_arch
+
+    env['CXX']='g++'
+    if ARGUMENTS.get('use_llvm', 'no') == 'yes':
+        env['CXX'] = 'clang++'
+
+    env.Append(CCFLAGS = [ '-fPIC', '-g', '-O3', '-std=c++14', '-Wwrite-strings' ])
+
+    if target_arch == '32':
+        env.Append(CCFLAGS = [ '-m32' ])
+        env.Append(LINKFLAGS = [ '-m32' ])
+    elif target_arch == '64':
+        env.Append(CCFLAGS = [ '-m64' ])
+        env.Append(LINKFLAGS = [ '-m64' ])
+
+elif target_platform == 'windows':
+    # This makes sure to keep the session environment variables on windows,
+    # that way you can run scons in a vs 2017 prompt and it will find all the required tools
+    if (target_arch == '64'):
+        env = Environment(ENV = os.environ, TARGET_ARCH='amd64')
+    else:
+        env = Environment(ENV = os.environ, TARGET_ARCH='x86')
+
+    result_name += '.windows.' + target_arch
+
+    if host_platform == 'Windows':
+        #result_name += '.lib'
+
+        env.Append(LINKFLAGS = [ '/WX' ])
+        if target == 'debug':
+            env.Append(CCFLAGS = ['/EHsc', '/D_DEBUG', '/MDd' ])
+        else:
+            env.Append(CCFLAGS = ['/O2', '/EHsc', '/DNDEBUG', '/MD' ])
+    else:
+        if target_arch == '32':
+            env['CXX']='i686-w64-mingw32-g++'
+        elif target_arch == '64':
+            env['CXX']='x86_64-w64-mingw32-g++'
+
+        env.Append(CCFLAGS = [ '-g', '-O3', '-std=c++14', '-Wwrite-strings' ])
+        env.Append(LINKFLAGS = [ '--static', '-Wl,--no-undefined', '-static-libgcc', '-static-libstdc++' ])
+
+elif target_platform == 'osx':
+    if ARGUMENTS.get('use_llvm', 'no') == 'yes':
+        env['CXX'] = 'clang++'
+
+    # Only 64-bits is supported for OS X
+    target_arch = '64'
+    result_name += '.osx.' + target_arch
+
+    env.Append(CCFLAGS = [ '-g','-O3', '-std=c++14', '-arch', 'x86_64' ])
+    env.Append(LINKFLAGS = [ '-arch', 'x86_64', '-framework', 'Cocoa', '-Wl,-undefined,dynamic_lookup' ])
+
+
+# Godot CPP bindings
+env.Append(CPPPATH=[godot_headers])
+env.Append(CPPPATH=[godot_cpp + '/include', godot_cpp + '/include/core', godot_cpp + '/include/gen'])
+env.Append(LIBPATH=[godot_cpp + '/bin'])
+env.Append(LIBS=['godot-cpp'])
+
+# WebRTC stuff
+webrtc_dir = "webrtc"
+lib_name = 'libwebrtc_full'
+lib_path = webrtc_dir + '/lib'
+
+if target_arch == '64':
+    lib_path += '/x64'
+elif target_arch == '32':
+    lib_path += '/x86'
+
+if target == 'debug':
+    lib_path += '/Debug'
+else:
+    lib_path += '/Release'
+
+env.Append(CPPPATH=[webrtc_dir + "/include"])
+#env.Append(CPPPATH=[lib_path])
+
+if target_platform == "linux":
+    env.Append(LIBS=[lib_name])
+    env.Append(LIBPATH=[lib_path])
+    #env.Append(CCFLAGS=["-std=c++11"])
+    env.Append(CCFLAGS=["-DWEBRTC_POSIX", "-DWEBRTC_LINUX"])
+    env.Append(CCFLAGS=["-DRTC_UNUSED=''", "-DNO_RETURN=''"])
+
+elif target_platform == "windows":
+    env.Append(CCFLAGS=["-DWEBRTC_WIN", "-D_WINSOCKAPI_", "-DNOMINMAX"])
+    env.Append(CCFLAGS=["/DRTC_UNUSED=", "/DNO_RETURN="])
+    # Mostly VisualStudio
+    if env["CC"] == "cl":
+        env.Append(LINKFLAGS=[p + env["LIBSUFFIX"] for p in ["secur32", lib_name]])
+        env.Append(LIBPATH=[lib_path])
+    # Mostly "gcc"
+    else:
+        env.Append(LIBS=["secur32", lib_name])
+        env.Append(LIBPATH=[lib_path])
+
+elif target_platform == "osx":
+    env.Append(LIBS=[lib_name])
+    env.Append(LIBPATH=[lib_path])
+
+# Godot CPP bindings
+env.Append(CPPPATH=[godot_headers])
+env.Append(CPPPATH=[godot_cpp + '/include', godot_cpp + '/include/core', godot_cpp + '/include/gen'])
+env.Append(LIBPATH=[godot_cpp + '/bin'])
+env.Append(LIBS=['godot-cpp'])
+
+# Our includes and sources
+env.Append(CPPPATH=['src/'])
+sources = []
+add_sources(sources, 'src/', 'cpp')
+add_sources(sources, 'src/net/', 'cpp')
+
+# Make the shared library
+library = env.SharedLibrary(target=os.path.join(result_path, result_name), source=sources)
+Default(library)