From 94d4c6a0e359e92f9d10208e219106ade1d4ea96 Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Mon, 11 Nov 2019 04:03:25 +0300
Subject: [PATCH] wscript: enable library naming for Waf

---
 scripts/waifulib/library_naming.py | 127 +++++++++++++++++++++++++++++
 wscript                            |   2 +-
 2 files changed, 128 insertions(+), 1 deletion(-)
 create mode 100644 scripts/waifulib/library_naming.py

diff --git a/scripts/waifulib/library_naming.py b/scripts/waifulib/library_naming.py
new file mode 100644
index 00000000..77dfa6df
--- /dev/null
+++ b/scripts/waifulib/library_naming.py
@@ -0,0 +1,127 @@
+#! /usr/bin/env python
+# Copyright 2019 (C) a1batross
+
+from waflib import Configure, Errors, Utils
+
+# TODO: make generic
+CHECK_SYMBOL_EXISTS_FRAGMENT = '''
+#include "build.h"
+
+int main(int argc, char** argv)
+{
+  (void)argv;
+#ifndef %s
+  return ((int*)(&%s))[argc];
+#else
+  (void)argc;
+  return 0;
+#endif
+}
+'''
+
+DEFINES = [
+'XASH_64BIT',
+'XASH_AMD64',
+'XASH_ANDROID',
+'XASH_APPLE',
+'XASH_ARM',
+'XASH_ARM64',
+'XASH_ARM_HARDFP',
+'XASH_ARM_SOFTFP',
+'XASH_ARMv4',
+'XASH_ARMv5',
+'XASH_ARMv6',
+'XASH_ARMv7',
+'XASH_BIG_ENDIAN',
+'XASH_BSD',
+'XASH_E2K',
+'XASH_EMSCRIPTEN',
+'XASH_FREEBSD',
+'XASH_IOS',
+'XASH_JS',
+'XASH_LINUX',
+'XASH_LITTLE_ENDIAN',
+'XASH_MINGW',
+'XASH_MIPS',
+'XASH_MOBILE_PLATFORM',
+'XASH_MSVC',
+'XASH_NETBSD',
+'XASH_OPENBSD',
+'XASH_WIN32',
+'XASH_WIN64',
+'XASH_X86'
+]
+
+def configure(conf):
+	conf.env.stash()
+	conf.start_msg('Determining library postfix')
+	tests = map(lambda x: {
+		'fragment': CHECK_SYMBOL_EXISTS_FRAGMENT % (x, x),
+		'includes': [conf.path.find_node('public/').abspath()],
+		'define_name': x }, DEFINES )
+	
+	conf.multicheck(*tests, msg = '', mandatory = False, quiet = True)
+	
+	# engine/common/build.c
+	if conf.env.XASH_ANDROID:
+		buildos = "android"
+	elif conf.env.XASH_WIN32 or conf.env.XASH_LINUX or conf.env.XASH_APPLE:
+		buildos = "" # no prefix for default OS
+	elif conf.env.XASH_FREEBSD:
+		buildos = "freebsd"
+	elif conf.env.XASH_NETBSD:
+		buildos = "netbsd"
+	elif conf.env.XASH_OPENBSD:
+		buildos = "openbsd"
+	elif conf.env.XASH_EMSCRIPTEN:
+		buildos = "emscripten"
+	else:
+		conf.fatal("Place your operating system name here! If this is a mistake, try to fix conditions above and report a bug")
+
+	if conf.env.XASH_AMD64:
+		buildarch = "amd64"
+	elif conf.env.XASH_X86:
+		buildarch = ""
+	elif conf.env.XASH_ARM64:
+		buildarch = "arm64"
+	elif conf.env.XASH_ARM:
+		buildarch = "armv"
+		if conf.env.XASH_ARMv7:
+			buildarch += "7"
+		elif conf.env.XASH_ARMv6:
+			buildarch += "6"
+		elif conf.env.XASH_ARMv5:
+			buildarch += "5"
+		elif conf.env.XASH_ARMv4:
+			buildarch += "4"
+		else:
+			raise conf.fatal('Unknown ARM')
+		
+		if conf.env.XASH_ARM_HARDFP:
+			buildarch += "hf"
+		else:
+			buildarch += "l"
+	elif conf.env.XASH_MIPS and conf.env.XASH_BIG_ENDIAN:
+		buildarch = "mips"
+	elif conf.env.XASH_MIPS and conf.env.XASH_LITTLE_ENDIAN:
+		buildarch = "mipsel"
+	elif conf.env.XASH_JS:
+		buildarch = "javascript"
+	elif conf.env.XASH_E2K:
+		buildarch = "e2k"
+	else:
+		raise conf.fatal("Place your architecture name here! If this is a mistake, try to fix conditions above and report a bug")
+	
+	conf.env.revert()
+	
+	if buildos == 'android':
+		# force disable for Android, as Android ports aren't distributed in normal way and doesn't follow library naming
+		conf.env.POSTFIX = ''
+	elif buildos != '' and buildarch != '':
+		conf.env.POSTFIX = '_%s_%s' % (buildos,buildarch)
+	elif buildarch != '':
+		conf.env.POSTFIX = '_%s' % buildarch
+	else:
+		conf.env.POSTFIX = ''
+	
+	conf.end_msg(conf.env.POSTFIX)
diff --git a/wscript b/wscript
index af830e72..3a885ac9 100644
--- a/wscript
+++ b/wscript
@@ -87,7 +87,7 @@ def configure(conf):
 	conf.env.MSVC_TARGETS = ['x86'] # explicitly request x86 target for MSVC
 	if sys.platform == 'win32':
 		conf.load('msvc msdev')
-	conf.load('xcompile compiler_c compiler_cxx strip_on_install')
+	conf.load('xcompile compiler_c compiler_cxx strip_on_install library_naming')
 
 	try:
 		conf.env.CC_VERSION[0]