Adding NetBSD support for scons build.

SConstruct

 # Copyright 2011 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 111 matching lines @@
       'CCFLAGS':      ['-ansi'],
     },
     'os:solaris': {
       # On Solaris, to get isinf, INFINITY, fpclassify and other macros one
       # needs to define __C99FEATURES__.
       'CPPDEFINES': ['__C99FEATURES__'],
       'CPPPATH' : ['/usr/local/include'],
       'LIBPATH' : ['/usr/local/lib'],
       'CCFLAGS':      ['-ansi'],
     },
+    'os:netbsd': {
+      'CPPPATH' : ['/usr/pkg/include'],
+      'LIBPATH' : ['/usr/pkg/lib'],
+    },
     'os:win32': {
       'CCFLAGS':      ['-DWIN32'],
       'CXXFLAGS':     ['-DWIN32'],
     },
     'arch:ia32': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_IA32'],
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
     },
     'arch:arm': {
@@ skipping 215 matching lines @@
     'os:solaris': {
       'LIBS': ['m', 'pthread', 'socket', 'nsl', 'rt'],
       'LINKFLAGS': ['-mt']
     },
     'os:openbsd': {
       'LIBS': ['execinfo', 'pthread']
     },
     'os:win32': {
       'LIBS': ['winmm', 'ws2_32'],
     },
+    'os:netbsd': {
+      'LIBS': ['execinfo', 'pthread']
+    },
     'compress_startup_data:bz2': {
       'os:linux': {
         'LIBS': ['bz2']
       }
     },
   },
   'msvc': {
     'all': {
       'CPPDEFINES': ['_HAS_EXCEPTIONS=0'],
       'LIBS': ['winmm', 'ws2_32']
@@ skipping 44 matching lines @@
     'os:solaris': {
       'LIBS':         ['m', 'pthread', 'socket', 'nsl', 'rt'],
       'LINKFLAGS':    ['-mt']
     },
     'os:openbsd': {
       'LIBS':         ['execinfo', 'pthread']
     },
     'os:win32': {
       'LIBS': ['winmm', 'ws2_32']
     },
+    'os:netbsd': {
+      'LIBS':         ['execinfo', 'pthread']
+    },
     'arch:arm': {
       'LINKFLAGS':   ARM_LINK_FLAGS
     },
   },
   'msvc': {
     'all': {
       'CPPDEFINES': ['_HAS_EXCEPTIONS=0'],
       'LIBS': ['winmm', 'ws2_32']
     },
     'arch:ia32': {
@@ skipping 39 matching lines @@
       'LIBS':         ['m', 'pthread', 'socket', 'nsl', 'rt'],
       'LINKFLAGS':    ['-mt']
     },
     'os:openbsd': {
       'LIBPATH' :     ['/usr/local/lib'],
       'LIBS':         ['execinfo', 'pthread']
     },
     'os:win32': {
       'LIBS':         ['winmm', 'ws2_32']
     },
+    'os:netbsd': {
+      'LIBPATH' :     ['/usr/pkg/lib'],
+      'LIBS':         ['execinfo', 'pthread']
+    },
     'arch:arm': {
       'LINKFLAGS':   ARM_LINK_FLAGS,
       'armeabi:soft' : {
         'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=soft'],
         }
       },
       'armeabi:softfp' : {
         'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
@@ skipping 311 matching lines @@
     'os:solaris': {
       'LIBS': ['m', 'pthread', 'socket', 'nsl', 'rt'],
       'LINKFLAGS': ['-mt']
     },
     'os:openbsd': {
       'LIBS': ['pthread'],
     },
     'os:win32': {
       'LIBS': ['winmm', 'ws2_32'],
     },
+    'os:netbsd': {
+      'LIBS': ['pthread'],
+    },
     'arch:arm': {
       'LINKFLAGS':   ARM_LINK_FLAGS
     },
     'compress_startup_data:bz2': {
       'CPPDEFINES':   ['COMPRESS_STARTUP_DATA_BZ2'],
       'os:linux': {
         'LIBS': ['bz2']
       }
     }
   },
@@ skipping 113 matching lines @@
   return 'default'
 
 
 PLATFORM_OPTIONS = {
   'arch': {
     'values': ['arm', 'ia32', 'x64', 'mips'],
     'guess': GuessArch,
     'help': 'the architecture to build for'
   },
   'os': {
-    'values': ['freebsd', 'linux', 'macos', 'win32', 'openbsd', 'solaris', 'cygwin'],
+    'values': ['freebsd', 'linux', 'macos', 'win32', 'openbsd', 'solaris', 'cygwin', 'netbsd'],
     'guess': GuessOS,
     'help': 'the os to build for'
   },
   'toolchain': {
     'values': ['gcc', 'msvc'],
     'guess': GuessToolchain,
     'help': 'the toolchain to use'
   }
 }
 
@@ skipping 577 matching lines @@
 # version of scons.  Also, there's a bug in some revisions that
 # doesn't allow this flag to be set, so we swallow any exceptions.
 # Lovely.
 try:
   SetOption('warn', 'no-deprecated')
 except:
   pass
 
 
 Build()