common.py: Fix PEP 8 issues.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

common.py

@@ -26,28 +26,28 @@ else:
     target_platform = host_platform
 
 _machine_map = {
-	'x86': 'x86',
-	'i386': 'x86',
-	'i486': 'x86',
-	'i586': 'x86',
-	'i686': 'x86',
-	'BePC': 'x86',
-	'Intel': 'x86',
-	'ppc' : 'ppc',
-	'BeBox': 'ppc',
-	'BeMac': 'ppc',
-	'AMD64': 'x86_64',
-	'x86_64': 'x86_64',
-	'sparc': 'sparc',
-	'sun4u': 'sparc',
+    'x86': 'x86',
+    'i386': 'x86',
+    'i486': 'x86',
+    'i586': 'x86',
+    'i686': 'x86',
+    'BePC': 'x86',
+    'Intel': 'x86',
+    'ppc': 'ppc',
+    'BeBox': 'ppc',
+    'BeMac': 'ppc',
+    'AMD64': 'x86_64',
+    'x86_64': 'x86_64',
+    'sparc': 'sparc',
+    'sun4u': 'sparc',
 }
 
 
 # find host_machine value
 if 'PROCESSOR_ARCHITECTURE' in os.environ:
-	host_machine = os.environ['PROCESSOR_ARCHITECTURE']
+    host_machine = os.environ['PROCESSOR_ARCHITECTURE']
 else:
-	host_machine = _platform.machine()
+    host_machine = _platform.machine()
 host_machine = _machine_map.get(host_machine, 'generic')
 
 default_machine = host_machine
@@ -65,7 +65,8 @@ else:
     default_llvm = 'no'
     try:
         if target_platform != 'windows' and \
-           subprocess.call(['llvm-config', '--version'], stdout=subprocess.PIPE) == 0:
+           subprocess.call(['llvm-config', '--version'],
+                           stdout=subprocess.PIPE) == 0:
             default_llvm = 'yes'
     except:
         pass
@@ -75,30 +76,38 @@ else:
 # Common options
 
 def AddOptions(opts):
-	try:
-		from SCons.Variables.BoolVariable import BoolVariable as BoolOption
-	except ImportError:
-		from SCons.Options.BoolOption import BoolOption
-	try:
-		from SCons.Variables.EnumVariable import EnumVariable as EnumOption
-	except ImportError:
-		from SCons.Options.EnumOption import EnumOption
-	opts.Add(EnumOption('build', 'build type', 'debug',
-	                  allowed_values=('debug', 'checked', 'profile', 'release')))
-	opts.Add(BoolOption('verbose', 'verbose output', 'no'))
-	opts.Add(EnumOption('machine', 'use machine-specific assembly code', default_machine,
-											 allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
-	opts.Add(EnumOption('platform', 'target platform', host_platform,
-											 allowed_values=('cygwin', 'darwin', 'freebsd', 'haiku', 'linux', 'sunos', 'windows')))
-	opts.Add(BoolOption('embedded', 'embedded build', 'no'))
-	opts.Add(BoolOption('analyze', 'enable static code analysis where available', 'no'))
-	opts.Add('toolchain', 'compiler toolchain', default_toolchain)
-	opts.Add(BoolOption('gles', 'EXPERIMENTAL: enable OpenGL ES support', 'no'))
-	opts.Add(BoolOption('llvm', 'use LLVM', default_llvm))
-	opts.Add(BoolOption('openmp', 'EXPERIMENTAL: compile with openmp (swrast)', 'no'))
-	opts.Add(BoolOption('debug', 'DEPRECATED: debug build', 'yes'))
-	opts.Add(BoolOption('profile', 'DEPRECATED: profile build', 'no'))
-	opts.Add(BoolOption('quiet', 'DEPRECATED: profile build', 'yes'))
-	opts.Add(BoolOption('texture_float', 'enable floating-point textures and renderbuffers', 'no'))
-	if host_platform == 'windows':
-		opts.Add('MSVC_VERSION', 'Microsoft Visual C/C++ version')
+    try:
+        from SCons.Variables.BoolVariable import BoolVariable as BoolOption
+    except ImportError:
+        from SCons.Options.BoolOption import BoolOption
+    try:
+        from SCons.Variables.EnumVariable import EnumVariable as EnumOption
+    except ImportError:
+        from SCons.Options.EnumOption import EnumOption
+    opts.Add(EnumOption('build', 'build type', 'debug',
+                        allowed_values=('debug', 'checked', 'profile',
+                                        'release')))
+    opts.Add(BoolOption('verbose', 'verbose output', 'no'))
+    opts.Add(EnumOption('machine', 'use machine-specific assembly code',
+                        default_machine,
+                        allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
+    opts.Add(EnumOption('platform', 'target platform', host_platform,
+                        allowed_values=('cygwin', 'darwin', 'freebsd', 'haiku',
+                                        'linux', 'sunos', 'windows')))
+    opts.Add(BoolOption('embedded', 'embedded build', 'no'))
+    opts.Add(BoolOption('analyze',
+                        'enable static code analysis where available', 'no'))
+    opts.Add('toolchain', 'compiler toolchain', default_toolchain)
+    opts.Add(BoolOption('gles', 'EXPERIMENTAL: enable OpenGL ES support',
+                        'no'))
+    opts.Add(BoolOption('llvm', 'use LLVM', default_llvm))
+    opts.Add(BoolOption('openmp', 'EXPERIMENTAL: compile with openmp (swrast)',
+                        'no'))
+    opts.Add(BoolOption('debug', 'DEPRECATED: debug build', 'yes'))
+    opts.Add(BoolOption('profile', 'DEPRECATED: profile build', 'no'))
+    opts.Add(BoolOption('quiet', 'DEPRECATED: profile build', 'yes'))
+    opts.Add(BoolOption('texture_float',
+                        'enable floating-point textures and renderbuffers',
+                        'no'))
+    if host_platform == 'windows':
+        opts.Add('MSVC_VERSION', 'Microsoft Visual C/C++ version')