From 2facd37fd8c2f7865a959d7604e60b6ce4a0c160 Mon Sep 17 00:00:00 2001
From: Maksim Smolin <maximsmol@gmail.com>
Date: Tue, 22 Jan 2019 13:07:37 -0800
Subject: [PATCH 1/4] transition sample_mm to AMBuild

---
 sample_mm/AMBuildScript   | 444 ++++++++++++++++++++++++++++++++++++++
 sample_mm/Makefile        | 230 --------------------
 sample_mm/configure.py    |  33 +++
 sample_mm/product.version |   1 +
 4 files changed, 478 insertions(+), 230 deletions(-)
 create mode 100644 sample_mm/AMBuildScript
 delete mode 100644 sample_mm/Makefile
 create mode 100644 sample_mm/configure.py
 create mode 100644 sample_mm/product.version

diff --git a/sample_mm/AMBuildScript b/sample_mm/AMBuildScript
new file mode 100644
index 00000000..a9f156ec
--- /dev/null
+++ b/sample_mm/AMBuildScript
@@ -0,0 +1,444 @@
+proj_name = 'sample_mm'
+proj_srcs = [
+  'sample_mm.cpp',
+]
+proj_c_flags = [
+  '-Wall',
+  '-Wno-non-virtual-dtor',
+  '-Wno-overloaded-virtual',
+  '-Werror',
+]
+proj_c_flags_opt = [
+  '-O3',
+  '-funroll-loops',
+  '-pipe',
+]
+proj_c_flags_dbg = [
+  '-g',
+  '-ggdb3',
+]
+
+import os, sys
+
+class SDK(object):
+  def __init__(self, sdk, ext, aDef, name, platform, dir):
+    self.folder = 'hl2sdk-' + dir
+    self.envvar = sdk
+    self.ext = ext
+    self.code = aDef
+    self.define = name
+    self.name = dir
+    self.path = None # Actual path
+    self.platformSpec = platform
+
+    # By default, nothing supports x64.
+    if type(platform) is list:
+      self.platformSpec = {p: ['x86'] for p in platform}
+    else:
+      self.platformSpec = platform
+
+  def shouldBuild(self, target, archs):
+    if target.platform not in self.platformSpec:
+      return False
+    if not len([i for i in self.platformSpec[target.platform] if i in archs]):
+      return False
+    return True
+
+WinOnly = ['windows']
+WinLinux = ['windows', 'linux']
+WinLinuxMac = ['windows', 'linux', 'mac']
+CSGO = {
+  'windows': ['x86'],
+  'linux': ['x86', 'x64'],
+  'mac': ['x64']
+}
+Source2 = {
+  'windows': ['x86', 'x64'],
+  'linux': ['x64'],
+}
+
+PossibleSDKs = {
+  'episode1':  SDK('HL2SDK', '2.ep1', '1', 'EPISODEONE', WinLinux, 'episode1'),
+  'ep2':  SDK('HL2SDKOB', '2.ep2', '3', 'ORANGEBOX', WinLinux, 'orangebox'),
+  'css':  SDK('HL2SDKCSS', '2.css', '6', 'CSS', WinLinuxMac, 'css'),
+  'hl2dm':  SDK('HL2SDKHL2DM', '2.hl2dm', '7', 'HL2DM', WinLinuxMac, 'hl2dm'),
+  'dods': SDK('HL2SDKDODS', '2.dods', '8', 'DODS', WinLinuxMac, 'dods'),
+  'sdk2013': SDK('HL2SDK2013', '2.sdk2013', '9', 'SDK2013', WinLinuxMac, 'sdk2013'),
+  'tf2':  SDK('HL2SDKTF2', '2.tf2', '11', 'TF2', WinLinuxMac, 'tf2'),
+  'l4d':  SDK('HL2SDKL4D', '2.l4d', '12', 'LEFT4DEAD', WinLinuxMac, 'l4d'),
+  'nucleardawn': SDK('HL2SDKND', '2.nd', '13', 'NUCLEARDAWN', WinLinuxMac, 'nucleardawn'),
+  'l4d2': SDK('HL2SDKL4D2', '2.l4d2', '15', 'LEFT4DEAD2', WinLinuxMac, 'l4d2'),
+  'darkm':  SDK('HL2SDK-DARKM', '2.darkm', '2', 'DARKMESSIAH', WinOnly, 'darkm'),
+  'swarm':  SDK('HL2SDK-SWARM', '2.swarm', '16', 'ALIENSWARM', WinOnly, 'swarm'),
+  'bgt':  SDK('HL2SDK-BGT', '2.bgt', '4', 'BLOODYGOODTIME', WinOnly, 'bgt'),
+  'eye':  SDK('HL2SDK-EYE', '2.eye', '5', 'EYE', WinOnly, 'eye'),
+  'csgo': SDK('HL2SDKCSGO', '2.csgo', '21', 'CSGO', CSGO, 'csgo'),
+  'dota': SDK('HL2SDKDOTA', '2.dota', '22', 'DOTA', Source2, 'dota'),
+  'portal2':  SDK('HL2SDKPORTAL2', '2.portal2', '17', 'PORTAL2', [], 'portal2'),
+  'blade':  SDK('HL2SDKBLADE', '2.blade', '18', 'BLADE', WinLinux, 'blade'),
+  'insurgency':  SDK('HL2SDKINSURGENCY', '2.insurgency', '19', 'INSURGENCY', WinLinuxMac, 'insurgency'),
+  'doi':  SDK('HL2SDKDOI', '2.doi', '20', 'DOI', WinLinuxMac, 'doi'),
+  'contagion':  SDK('HL2SDKCONTAGION', '2.contagion', '14', 'CONTAGION', WinOnly, 'contagion'),
+  'bms':  SDK('HL2SDKBMS', '2.bms', '10', 'BMS', WinLinux, 'bms'),
+}
+
+def ResolveEnvPath(env, folder):
+  if env in os.environ:
+    path = os.environ[env]
+    if os.path.isdir(path):
+      return path
+  else:
+    head = os.getcwd()
+    oldhead = None
+    while head != None and head != oldhead:
+      path = os.path.join(head, folder)
+      if os.path.isdir(path):
+        return path
+      oldhead = head
+      head, tail = os.path.split(head)
+  return None
+
+def SetArchFlags(compiler, arch, platform):
+  if compiler.behavior == 'gcc':
+    if arch == 'x86':
+      compiler.cflags += ['-m32']
+      compiler.linkflags += ['-m32']
+      if platform == 'mac':
+        compiler.linkflags += ['-arch', 'i386']
+    elif arch == 'x64':
+      compiler.cflags += ['-m64', '-fPIC']
+      compiler.linkflags += ['-m64']
+      if platform == 'mac':
+        compiler.linkflags += ['-arch', 'x86_64']
+  elif compiler.like('msvc'):
+    if arch == 'x86':
+      compiler.linkflags += ['/MACHINE:X86']
+    elif arch == 'x64':
+      compiler.linkflags += ['/MACHINE:X64']
+
+def AppendArchSuffix(binary, name, arch):
+  if arch == 'x64':
+    binary.localFolder = name + '.x64'
+
+class MMSConfig(object):
+  def __init__(self):
+    self.sdks = {}
+    self.binaries = []
+    self.generated_headers = None
+    self.archs = builder.target.arch.replace('x86_64', 'x64').split(',')
+
+  def detectProductVersion(self):
+    builder.AddConfigureFile('product.version')
+
+    # For OS X dylib versioning
+    import re
+    with open(os.path.join(builder.sourcePath, 'product.version'), 'r') as fp:
+      productContents = fp.read()
+    m = re.match('(\d+)\.(\d+)\.(\d+).*', productContents)
+    if m == None:
+      self.productVersion = '1.0.0'
+    else:
+      major, minor, release = m.groups()
+      self.productVersion = '{0}.{1}.{2}'.format(major, minor, release)
+
+  def detectSDKs(self):
+    sdk_list = builder.options.sdks.split(',')
+    use_all = sdk_list[0] == 'all'
+    use_present = sdk_list[0] == 'present'
+    if sdk_list[0] == '':
+        sdk_list = []
+
+    for sdk_name in PossibleSDKs:
+      sdk = PossibleSDKs[sdk_name]
+      if sdk.shouldBuild(builder.target, self.archs):
+        if builder.options.hl2sdk_root:
+          sdk_path = os.path.join(builder.options.hl2sdk_root, sdk.folder)
+        else:
+          sdk_path = ResolveEnvPath(sdk.envvar, sdk.folder)
+        if sdk_path is None:
+          if use_all or sdk_name in sdk_list:
+            raise Exception('Could not find a valid path for {0}'.format(sdk.envvar))
+          continue
+        if use_all or use_present or sdk_name in sdk_list:
+          sdk.path = sdk_path
+          self.sdks[sdk_name] = sdk
+
+    if len(self.sdks) < 1 and len(sdk_list):
+      raise Exception('No SDKs were found that build on {0}-{1}, nothing to do.'.format(
+        builder.target.platform, builder.target.arch))
+
+  def configure(self):
+    if not set(self.archs).issubset(['x86', 'x64']):
+      raise Exception('Unknown target architecture: {0}'.format(builder.target.arch))
+
+    cxx = builder.DetectCxx()
+
+    if cxx.like('msvc') and len(self.archs) > 1:
+      raise Exception('Building multiple archs with MSVC is not currently supported')
+
+    if cxx.behavior == 'gcc':
+      cxx.defines += [
+        'stricmp=strcasecmp',
+        '_stricmp=strcasecmp',
+        '_strnicmp=strncasecmp',
+        'strnicmp=strncasecmp',
+        '_snprintf=snprintf',
+        '_vsnprintf=vsnprintf',
+        '_alloca=alloca',
+        'strcmpi=strcasecmp',
+      ]
+      cxx.cflags += proj_c_flags
+      cxx.cflags += [ # todo: what is the difference between cflags and cxxflags
+        '-fPIC',
+        '-fno-exceptions',
+        '-fno-rtti',
+        '-msse',
+        '-fno-strict-aliasing',
+      ]
+
+      if (cxx.version >= 'gcc-4.0') or cxx.family == 'clang':
+        cxx.cflags += [
+          '-fvisibility=hidden',
+          '-fvisibility-inlines-hidden',
+          '-std=c++11',
+        ]
+      # apple clang <-> llvm clang version correspondence is just a guess as there is no way to figure it out for real
+      if (cxx.version >= 'gcc-4.7' or cxx.version >= 'clang-3.0' or cxx.version >= 'apple-clang-5.1'):
+        cxx.cflags += [
+          '-Wno-delete-non-virtual-dtor',
+          '-Wno-unused-private-field',
+          '-Wno-deprecated-register',
+        ]
+      if cxx.family == 'clang':
+        if cxx.version >= 'clang-3.9' or cxx.version >= 'apple-clang-10.0':
+          cxx.cxxflags += ['-Wno-expansion-to-defined']
+
+    elif cxx.like('msvc'):
+      raise Exception('MSVC builds should use the Visual Studio projects until somebody implements support') # todo: implement MSVC support
+
+    # Optimization
+    if builder.options.opt == '1':
+      if cxx.behavior == 'gcc':
+        cxx.cflags += proj_c_flags_opt
+      # elif cxx.behavior == 'msvc': # todo: implement MSVC support
+
+    # Debugging
+    if builder.options.debug == '1':
+      cxx.defines += ['_DEBUG']
+      if cxx.behavior == 'gcc':
+        cxx.cflags += proj_c_flags_dbg
+      # elif cxx.behavior == 'msvc': # todo: implement MSVC support
+
+    # This needs to be after our optimization flags which could otherwise disable it.
+    # if cxx.family == 'msvc': # todo: implement MSVC support
+
+    # Platform-specifics
+    if builder.target.platform == 'linux':
+      cxx.defines += [
+        'POSIX',
+        '_LINUX',
+      ]
+      cxx.linkflags += ['-shared']
+      if cxx.family == 'gcc':
+        cxx.linkflags += ['-static-libgcc']
+    elif builder.target.platform == 'mac':
+      cxx.defines += [
+        'POSIX',
+        'OSX',
+        '_OSX',
+      ]
+      cxx.cflags += ['-mmacosx-version-min=10.9']
+      cxx.linkflags += [
+        '-dynamiclib',
+        '-lc++',
+        '-mmacosx-version-min=10.9',
+      ]
+    # elif builder.target.platform == 'windows': # todo: implement MSVC support
+
+  def HL2Compiler(self, context, sdk, arch):
+    compiler = context.cxx.clone()
+    compiler.cxxincludes += [
+      os.path.join(context.currentSourcePath),
+    ]
+
+    defines = ['SE_' + PossibleSDKs[i].define + '=' + PossibleSDKs[i].code for i in PossibleSDKs]
+    compiler.defines += defines
+    paths = [
+              ['public'],
+              ['public', 'engine'],
+              ['public', 'mathlib'],
+              ['public', 'vstdlib'],
+              ['public', 'tier0'],
+              ['public', 'tier1'],
+            ]
+
+    if not builder.options.mms_path:
+      raise Exception('Metamod:Source path is missing. Supply a --mms_path flag')
+
+    if sdk.name == 'episode1' or sdk.name == 'darkm':
+      paths.append(['public', 'dlls'])
+      compiler.cxxincludes.append(os.path.join(builder.options.mms_path, 'core-legacy'))
+      compiler.cxxincludes.append(os.path.join(builder.options.mms_path, 'core-legacy', 'sourcehook'))
+    else:
+      paths.append(['public', 'game', 'server'])
+      compiler.cxxincludes.append(os.path.join(builder.options.mms_path, 'core'))
+      compiler.cxxincludes.append(os.path.join(builder.options.mms_path, 'core', 'sourcehook'))
+
+    compiler.defines += ['SOURCE_ENGINE=' + sdk.code]
+
+    if sdk.name in ['sdk2013', 'bms'] and compiler.like('gcc'):
+      # The 2013 SDK already has these in public/tier0/basetypes.h
+      compiler.defines.remove('stricmp=strcasecmp')
+      compiler.defines.remove('_stricmp=strcasecmp')
+      compiler.defines.remove('_snprintf=snprintf')
+      compiler.defines.remove('_vsnprintf=vsnprintf')
+
+    if compiler.family == 'msvc':
+      # todo: verify this for MSVC support
+      compiler.defines += ['COMPILER_MSVC']
+      if arch == 'x86':
+        compiler.defines += ['COMPILER_MSVC32']
+      elif arch == 'x64':
+        compiler.defines += ['COMPILER_MSVC64']
+
+      if compiler.version >= 1900:
+        compiler.linkflags += ['legacy_stdio_definitions.lib']
+    else: # todo: is it better to check compiler.behavior?
+      compiler.defines += ['COMPILER_GCC']
+
+    for path in paths:
+      compiler.cxxincludes += [os.path.join(sdk.path, *path)]
+
+    return compiler
+
+  def AddVersioning(self, binary, arch):
+    if builder.target.platform == 'windows':
+      # todo: verify this for MSVC support
+      binary.sources += ['version.rc']
+      binary.compiler.rcdefines += [
+        'BINARY_NAME="{0}"'.format(binary.outputFile),
+        'RC_COMPILE'
+      ]
+    elif builder.target.platform == 'mac' and binary.type == 'library':
+      binary.compiler.postlink += [
+        '-compatibility_version', '1.0.0',
+        '-current_version', self.productVersion
+      ]
+
+    return binary
+
+  def LibraryBuilder(self, compiler, name, arch):
+    binary = compiler.Library(name)
+    AppendArchSuffix(binary, name, arch)
+    self.AddVersioning(binary, arch)
+    return binary
+
+  def HL2Library(self, context, name, sdk, arch):
+    compiler = self.HL2Compiler(context, sdk, arch)
+
+    SetArchFlags(compiler, arch, builder.target.platform)
+
+    if builder.target.platform == 'linux':
+      if sdk.name == 'episode1':
+        lib_folder = os.path.join(sdk.path, 'linux_sdk')
+      elif sdk.name in ['sdk2013', 'bms']:
+        lib_folder = os.path.join(sdk.path, 'lib', 'public', 'linux32')
+      elif arch == 'x64':
+        lib_folder = os.path.join(sdk.path, 'lib', 'linux64')
+      else:
+        lib_folder = os.path.join(sdk.path, 'lib', 'linux')
+    elif builder.target.platform == 'mac':
+      if sdk.name in ['sdk2013', 'bms']:
+        lib_folder = os.path.join(sdk.path, 'lib', 'public', 'osx32')
+      elif arch == 'x64':
+        lib_folder = os.path.join(sdk.path, 'lib', 'osx64')
+      else:
+        lib_folder = os.path.join(sdk.path, 'lib', 'mac')
+
+    if builder.target.platform in ['linux', 'mac']:
+      if sdk.name in ['sdk2013', 'bms'] or arch == 'x64':
+        compiler.postlink += [compiler.Dep(os.path.join(lib_folder, 'tier1.a'))]
+      else:
+        compiler.postlink += [compiler.Dep(os.path.join(lib_folder, 'tier1_i486.a'))]
+
+      if sdk.name in ['blade', 'insurgency', 'doi', 'csgo', 'dota']:
+        if arch == 'x64':
+          compiler.postlink += [compiler.Dep(os.path.join(lib_folder, 'interfaces.a'))]
+        else:
+          compiler.postlink += [compiler.Dep(os.path.join(lib_folder, 'interfaces_i486.a'))]
+
+      if sdk.name == 'bms':
+        compiler.postlink += [compiler.Dep(os.path.join(lib_folder, 'mathlib.a'))]
+
+    binary = self.LibraryBuilder(compiler, name, arch)
+
+    dynamic_libs = [] # todo: this whole section is slightly different, but I imagine it is "more correct"
+    if builder.target.platform == 'linux':
+      compiler.linkflags[0:0] = ['-lm', '-ldl'] # todo: do we need -ldl?
+      if sdk.name in ['css', 'hl2dm', 'dods', 'tf2', 'sdk2013', 'bms', 'nucleardawn', 'l4d2', 'insurgency', 'doi']:
+        dynamic_libs = ['libtier0_srv.so', 'libvstdlib_srv.so']
+      elif arch == 'x64' and sdk.name == 'csgo':
+        dynamic_libs = ['libtier0_client.so', 'libvstdlib_client.so']
+      elif sdk.name in ['l4d', 'blade', 'insurgency', 'doi', 'csgo', 'dota']:
+        dynamic_libs = ['libtier0.so', 'libvstdlib.so']
+      else:
+        dynamic_libs = ['tier0_i486.so', 'vstdlib_i486.so']
+    elif builder.target.platform == 'mac':
+      # binary.compiler.linkflags.append('-liconv') # todo: I imagine we need this, but the Makefile didnt
+      dynamic_libs = ['libtier0.dylib', 'libvstdlib.dylib']
+    elif builder.target.platform == 'windows':
+      # todo: verify this for MSVC support
+      libs = ['tier0', 'tier1', 'vstdlib']
+      if sdk.name in ['swarm', 'blade', 'insurgency', 'doi', 'csgo', 'dota']:
+        libs.append('interfaces')
+      if sdk.name == 'bms':
+        libs.append('mathlib')
+      for lib in libs:
+        if arch == 'x86':
+          lib_path = os.path.join(sdk.path, 'lib', 'public', lib) + '.lib'
+        elif arch == 'x64':
+          lib_path = os.path.join(sdk.path, 'lib', 'public', 'win64', lib) + '.lib'
+        binary.compiler.linkflags.append(binary.Dep(lib_path))
+
+    for library in dynamic_libs:
+      source_path = os.path.join(lib_folder, library)
+      output_path = os.path.join(binary.localFolder, library)
+
+      def make_linker(source_path, output_path):
+        def link(context, binary):
+          cmd_node, (output,) = context.AddSymlink(source_path, output_path)
+          return output
+        return link
+
+      linker = make_linker(source_path, output_path)
+      binary.compiler.linkflags[0:0] = [binary.Dep(library, linker)]
+
+    return binary
+
+MMS = MMSConfig()
+MMS.detectProductVersion()
+MMS.detectSDKs()
+MMS.configure()
+
+BuildScripts = [] # add sub-modules here
+if getattr(builder.options, 'enable_tests', False):
+    BuildScripts += [] # add tests here
+
+import os
+
+for sdk_name in MMS.sdks:
+  for arch in MMS.archs:
+    sdk = MMS.sdks[sdk_name]
+
+    if not arch in sdk.platformSpec[builder.target.platform]:
+      continue
+
+    name = proj_name + sdk.ext
+    binary = MMS.HL2Library(builder, name, sdk, arch)
+
+    binary.sources += proj_srcs
+
+    nodes = builder.Add(binary)
+    MMS.binaries += [nodes]
+
+builder.Build(BuildScripts, { 'MMS': MMS })
diff --git a/sample_mm/Makefile b/sample_mm/Makefile
deleted file mode 100644
index e948f4d0..00000000
--- a/sample_mm/Makefile
+++ /dev/null
@@ -1,230 +0,0 @@
-# (C)2004-2010 Metamod:Source Development Team
-# Makefile written by David "BAILOPAN" Anderson
-
-###########################################
-### EDIT THESE PATHS FOR YOUR OWN SETUP ###
-###########################################
-
-HL2SDK_ORIG = ../../hl2sdk
-HL2SDK_OB = ../../hl2sdk-ob
-HL2SDK_CSS = ../../hl2sdk-css
-HL2SDK_OB_VALVE = ../../hl2sdk-ob-valve
-HL2SDK_L4D = ../../hl2sdk-l4d
-HL2SDK_L4D2 = ../../hl2sdk-l4d2
-HL2SDK_CSGO = ../../hl2sdk-csgo
-MMSOURCE19 = ..
-
-#####################################
-### EDIT BELOW FOR OTHER PROJECTS ###
-#####################################
-
-PROJECT = sample_mm
-OBJECTS = sample_mm.cpp
-
-##############################################
-### CONFIGURE ANY OTHER FLAGS/OPTIONS HERE ###
-##############################################
-
-OPT_FLAGS = -O3 -funroll-loops -pipe
-GCC4_FLAGS = -fvisibility=hidden -fvisibility-inlines-hidden -std=c++11
-DEBUG_FLAGS = -g -ggdb3 -D_DEBUG
-CPP = gcc
-CPP_OSX = clang
-
-##########################
-### SDK CONFIGURATIONS ###
-##########################
-
-override ENGSET = false
-
-# Check for valid list of engines
-ifneq (,$(filter original orangebox orangeboxvalve css left4dead left4dead2 csgo,$(ENGINE)))
-	override ENGSET = true
-endif
-
-ifeq "$(ENGINE)" "original"
-	HL2SDK = $(HL2SDK_ORIG)
-	CFLAGS += -DSOURCE_ENGINE=1
-endif
-ifeq "$(ENGINE)" "orangebox"
-	HL2SDK = $(HL2SDK_OB)
-	CFLAGS += -DSOURCE_ENGINE=3
-endif
-ifeq "$(ENGINE)" "css"
-	HL2SDK = $(HL2SDK_CSS)
-	CFLAGS += -DSOURCE_ENGINE=6
-endif
-ifeq "$(ENGINE)" "orangeboxvalve"
-	HL2SDK = $(HL2SDK_OB_VALVE)
-	CFLAGS += -DSOURCE_ENGINE=7
-endif
-ifeq "$(ENGINE)" "left4dead"
-	HL2SDK = $(HL2SDK_L4D)
-	CFLAGS += -DSOURCE_ENGINE=8
-endif
-ifeq "$(ENGINE)" "left4dead2"
-	HL2SDK = $(HL2SDK_L4D2)
-	CFLAGS += -DSOURCE_ENGINE=9
-endif
-ifeq "$(ENGINE)" "csgo"
-	HL2SDK = $(HL2SDK_CSGO)
-	CFLAGS += -DSOURCE_ENGINE=12
-endif
-
-HL2PUB = $(HL2SDK)/public
-
-ifeq "$(ENGINE)" "original"
-	INCLUDE += -I$(HL2SDK)/public/dlls
-	METAMOD = $(MMSOURCE19)/core-legacy
-else
-	INCLUDE += -I$(HL2SDK)/public/game/server
-	METAMOD = $(MMSOURCE19)/core
-endif
-
-OS := $(shell uname -s)
-
-ifeq "$(OS)" "Darwin"
-	LIB_EXT = dylib
-	ifeq "$(ENGINE)" "csgo"
-		HL2LIB = $(HL2SDK)/lib/osx64
-	else
-		HL2LIB = $(HL2SDK)/lib/mac
-	endif
-else
-	LIB_EXT = so
-	ifeq "$(ENGINE)" "original"
-		HL2LIB = $(HL2SDK)/linux_sdk
-	else
-		HL2LIB = $(HL2SDK)/lib/linux
-	endif
-endif
-
-# if ENGINE is original or OB
-ifneq (,$(filter original orangebox,$(ENGINE)))
-	LIB_SUFFIX = _i486.$(LIB_EXT)
-else
-	LIB_PREFIX = lib
-	ifneq (,$(filter orangeboxvalve css left4dead2,$(ENGINE)))
-		ifneq "$(OS)" "Darwin"
-			LIB_SUFFIX = _srv.$(LIB_EXT)
-		else
-			LIB_SUFFIX = .$(LIB_EXT)
-		endif
-	else
-		LIB_SUFFIX = .$(LIB_EXT)
-	endif
-endif
-
-ifeq "$(OS)" "Darwin"
-	ifeq "$(ENGINE)" "csgo"
-		STATIC_SUFFIX = 
-		LIB_SUFFIX = .x64.$(LIB_EXT)
-	else
-		STATIC_SUFFIX = _i486
-	endif
-else
-	STATIC_SUFFIX = _i486
-endif
-
-CFLAGS += -DSE_EPISODEONE=1 -DSE_DARKMESSIAH=2 -DSE_ORANGEBOX=3 -DSE_BLOODYGOODTIME=4 -DSE_EYE=5 \
-	-DSE_CSS=6 -DSE_ORANGEBOXVALVE=7 -DSE_LEFT4DEAD=8 -DSE_LEFT4DEAD2=9 -DSE_ALIENSWARM=10 \
-	-DSE_PORTAL2=11 -DSE_CSGO=12
-
-LINK += $(HL2LIB)/tier1$(STATIC_SUFFIX).a $(LIB_PREFIX)vstdlib$(LIB_SUFFIX) $(LIB_PREFIX)tier0$(LIB_SUFFIX)
-
-ifeq "$(ENGINE)" "csgo"
-	LINK += $(HL2LIB)/interfaces$(STATIC_SUFFIX).a
-endif
-
-INCLUDE += -I. -I.. -I$(HL2PUB) -I$(HL2PUB)/engine -I$(HL2PUB)/mathlib -I$(HL2PUB)/vstdlib \
-	-I$(HL2PUB)/tier0 -I$(HL2PUB)/tier1 -I. -I$(METAMOD) -I$(METAMOD)/sourcehook
-
-################################################
-### DO NOT EDIT BELOW HERE FOR MOST PROJECTS ###
-################################################
-
-BINARY = $(PROJECT).$(LIB_EXT)
-
-ifeq "$(DEBUG)" "true"
-	BIN_DIR = Debug.$(ENGINE)
-	CFLAGS += $(DEBUG_FLAGS)
-else
-	BIN_DIR = Release.$(ENGINE)
-	CFLAGS += $(OPT_FLAGS)
-endif
-
-ifeq "$(OS)" "Darwin"
-	CPP = $(CPP_OSX)
-	LIB_EXT = dylib
-	CFLAGS += -DOSX -D_OSX -mmacosx-version-min=10.9
-	LINK += -dynamiclib -lc++ -mmacosx-version-min=10.9
-	ifeq "$(ENGINE)" "csgo"
-		CFLAGS += -m64 -DX64BITS -DPLATFORM_64BITS
-		LINK += -m64
-	else
-		CFLAGS += -m32
-		LINK += -m32
-	endif
-else
-	LIB_EXT = so
-	CFLAGS += -D_LINUX -m32
-	LINK += -shared -m32
-endif
-
-IS_CLANG := $(shell $(CPP) --version | head -1 | grep clang > /dev/null && echo "1" || echo "0")
-
-ifeq "$(IS_CLANG)" "1"
-	CPP_MAJOR := $(shell $(CPP) --version | grep clang | sed "s/.*version \([0-9]\)*\.[0-9]*.*/\1/")
-	CPP_MINOR := $(shell $(CPP) --version | grep clang | sed "s/.*version [0-9]*\.\([0-9]\)*.*/\1/")
-else
-	CPP_MAJOR := $(shell $(CPP) -dumpversion >&1 | cut -b1)
-	CPP_MINOR := $(shell $(CPP) -dumpversion >&1 | cut -b3)
-endif
-
-CFLAGS += -DPOSIX -Dstricmp=strcasecmp -D_stricmp=strcasecmp -D_strnicmp=strncasecmp \
-	-Dstrnicmp=strncasecmp -D_snprintf=snprintf -D_vsnprintf=vsnprintf -D_alloca=alloca \
-	-Dstrcmpi=strcasecmp -DCOMPILER_GCC -Wall -Wno-non-virtual-dtor -Wno-overloaded-virtual \
-	-Werror -fPIC -fno-exceptions -fno-rtti -msse -fno-strict-aliasing
-
-# Clang || GCC >= 4
-ifeq "$(shell expr $(IS_CLANG) \| $(CPP_MAJOR) \>= 4)" "1"
-	CFLAGS += $(GCC4_FLAGS)
-endif
-
-# Clang >= 3 || GCC >= 4.7
-ifeq "$(shell expr $(IS_CLANG) \& $(CPP_MAJOR) \>= 3 \| $(CPP_MAJOR) \>= 4 \& $(CPP_MINOR) \>= 7)" "1"
-	CFLAGS += -Wno-delete-non-virtual-dtor -Wno-unused-private-field -Wno-deprecated-register
-endif
-
-# OS is Linux and not using clang
-ifeq "$(shell expr $(OS) \= Linux \& $(IS_CLANG) \= 0)" "1"
-	LINK += -static-libgcc
-endif
-
-OBJ_BIN := $(OBJECTS:%.cpp=$(BIN_DIR)/%.o)
-
-$(BIN_DIR)/%.o: %.cpp
-	$(CPP) $(INCLUDE) $(CFLAGS) -o $@ -c $<
-
-all: check
-	mkdir -p $(BIN_DIR)
-	ln -sf $(HL2LIB)/$(LIB_PREFIX)vstdlib$(LIB_SUFFIX)
-	ln -sf $(HL2LIB)/$(LIB_PREFIX)tier0$(LIB_SUFFIX)
-	$(MAKE) -f Makefile sample_mm
-	
-check:
-	if [ "$(ENGSET)" = "false" ]; then \
-		echo "You must supply one of the following values for ENGINE:"; \
-		echo "csgo, left4dead2, left4dead, css, orangeboxvalve, orangebox, or original"; \
-		exit 1; \
-	fi
-
-sample_mm: check $(OBJ_BIN)
-	$(CPP) $(INCLUDE) $(OBJ_BIN) $(LINK) -ldl -lm -o $(BIN_DIR)/$(BINARY)
-
-default: all
-
-clean: check
-	rm -rf $(BIN_DIR)/*.o
-	rm -rf $(BIN_DIR)/$(BINARY)
-
diff --git a/sample_mm/configure.py b/sample_mm/configure.py
new file mode 100644
index 00000000..50e87dfd
--- /dev/null
+++ b/sample_mm/configure.py
@@ -0,0 +1,33 @@
+import sys
+try:
+  from ambuild2 import run, util
+except:
+  try:
+    import ambuild
+    sys.stderr.write('It looks like you have AMBuild 1 installed, but this project uses AMBuild 2.\n')
+    sys.stderr.write('Upgrade to the latest version of AMBuild to continue.\n')
+  except:
+    sys.stderr.write('AMBuild must be installed to build this project.\n')
+    sys.stderr.write('http://www.alliedmods.net/ambuild\n')
+  sys.exit(1)
+
+def make_objdir_name(p):
+    return 'obj-' + util.Platform() + '-' + p.target_arch
+
+parser = run.BuildParser(sourcePath=sys.path[0], api='2.1')
+parser.default_arch = 'x86'
+parser.default_build_folder = make_objdir_name
+parser.options.add_option('--hl2sdk-root', type=str, dest='hl2sdk_root', default=None,
+                       help='Root search folder for HL2SDKs')
+parser.options.add_option('--mms_path', type=str, dest='mms_path', default=None,
+                       help='Metamod:Source source tree folder')
+parser.options.add_option('--enable-debug', action='store_const', const='1', dest='debug',
+                       help='Enable debugging symbols')
+parser.options.add_option('--enable-optimize', action='store_const', const='1', dest='opt',
+                       help='Enable optimization')
+parser.options.add_option('-s', '--sdks', default='all', dest='sdks',
+                       help='Build against specified SDKs; valid args are "all", "present", or '
+                            'comma-delimited list of engine names (default: %default)')
+parser.options.add_option('--enable-tests', default=False, dest='enable_tests', action='store_true',
+                       help='Build tests.')
+parser.Configure()
diff --git a/sample_mm/product.version b/sample_mm/product.version
new file mode 100644
index 00000000..6e8bf73a
--- /dev/null
+++ b/sample_mm/product.version
@@ -0,0 +1 @@
+0.1.0

From c61d0576b126aada4fa9d5c9fe56a11cae8cbba8 Mon Sep 17 00:00:00 2001
From: Maksim Smolin <maximsmol@gmail.com>
Date: Tue, 22 Jan 2019 17:30:39 -0800
Subject: [PATCH 2/4] remove defines that are re-defined in the SDKs

---
 sample_mm/AMBuildScript | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sample_mm/AMBuildScript b/sample_mm/AMBuildScript
index a9f156ec..301ef2c5 100644
--- a/sample_mm/AMBuildScript
+++ b/sample_mm/AMBuildScript
@@ -180,12 +180,9 @@ class MMSConfig(object):
       cxx.defines += [
         'stricmp=strcasecmp',
         '_stricmp=strcasecmp',
-        '_strnicmp=strncasecmp',
-        'strnicmp=strncasecmp',
         '_snprintf=snprintf',
         '_vsnprintf=vsnprintf',
         '_alloca=alloca',
-        'strcmpi=strcasecmp',
       ]
       cxx.cflags += proj_c_flags
       cxx.cflags += [ # todo: what is the difference between cflags and cxxflags

From c2420c0f17afa0cb8e9d590a498d244c5eef2611 Mon Sep 17 00:00:00 2001
From: Maksim Smolin <maximsmol@gmail.com>
Date: Tue, 22 Jan 2019 17:31:00 -0800
Subject: [PATCH 3/4] define GNUC so that SDKS build properly

---
 sample_mm/AMBuildScript | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sample_mm/AMBuildScript b/sample_mm/AMBuildScript
index 301ef2c5..abe6694b 100644
--- a/sample_mm/AMBuildScript
+++ b/sample_mm/AMBuildScript
@@ -183,6 +183,7 @@ class MMSConfig(object):
         '_snprintf=snprintf',
         '_vsnprintf=vsnprintf',
         '_alloca=alloca',
+        'GNUC'
       ]
       cxx.cflags += proj_c_flags
       cxx.cflags += [ # todo: what is the difference between cflags and cxxflags

From 628cae70657ca8dc4565430c1391e6612805c923 Mon Sep 17 00:00:00 2001
From: Maksim Smolin <maximsmol@gmail.com>
Date: Tue, 22 Jan 2019 17:31:21 -0800
Subject: [PATCH 4/4] add iconv as sdk2013 depends on it

---
 sample_mm/AMBuildScript | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sample_mm/AMBuildScript b/sample_mm/AMBuildScript
index abe6694b..0b767031 100644
--- a/sample_mm/AMBuildScript
+++ b/sample_mm/AMBuildScript
@@ -382,7 +382,7 @@ class MMSConfig(object):
       else:
         dynamic_libs = ['tier0_i486.so', 'vstdlib_i486.so']
     elif builder.target.platform == 'mac':
-      # binary.compiler.linkflags.append('-liconv') # todo: I imagine we need this, but the Makefile didnt
+      binary.compiler.linkflags.append('-liconv')
       dynamic_libs = ['libtier0.dylib', 'libvstdlib.dylib']
     elif builder.target.platform == 'windows':
       # todo: verify this for MSVC support