import re
import subprocess
import platform as _platform
+import sys
+import tempfile
import SCons.Action
import SCons.Builder
return 1
+def check_cc(env, cc, expr, cpp_opt = '-E'):
+ # Invoke C-preprocessor to determine whether the specified expression is
+ # true or not.
+
+ sys.stdout.write('Checking for %s ... ' % cc)
+
+ source = tempfile.NamedTemporaryFile(suffix='.c', delete=False)
+ source.write('#if !(%s)\n#error\n#endif\n' % expr)
+ source.close()
+
+ pipe = SCons.Action._subproc(env, [env['CC'], cpp_opt, source.name],
+ stdin = 'devnull',
+ stderr = 'devnull',
+ stdout = 'devnull')
+ result = pipe.wait() == 0
+
+ os.unlink(source.name)
+
+ sys.stdout.write(' %s\n' % ['no', 'yes'][int(bool(result))])
+ return result
+
+
def generate(env):
"""Common environment generation code"""
if os.environ.has_key('LDFLAGS'):
env['LINKFLAGS'] += SCons.Util.CLVar(os.environ['LDFLAGS'])
- env['gcc'] = 'gcc' in os.path.basename(env['CC']).split('-')
- env['msvc'] = env['CC'] == 'cl'
+ # Detect gcc/clang not by executable name, but through pre-defined macros
+ # as autoconf does, to avoid drawing wrong conclusions when using tools
+ # that overrice CC/CXX like scan-build.
+ env['gcc'] = 0
+ env['clang'] = 0
+ env['msvc'] = 0
+ if _platform.system() == 'Windows':
+ env['msvc'] = check_cc(env, 'MSVC', 'defined(_MSC_VER)', '/E')
+ if not env['msvc']:
+ env['gcc'] = check_cc(env, 'GCC', 'defined(__GNUC__) && !defined(__clang__)')
+ env['clang'] = check_cc(env, 'Clang', '__clang__')
env['suncc'] = env['platform'] == 'sunos' and os.path.basename(env['CC']) == 'cc'
- env['clang'] = env['CC'] == 'clang'
env['icc'] = 'icc' == os.path.basename(env['CC'])
if env['msvc'] and env['toolchain'] == 'default' and env['machine'] == 'x86_64':
cppdefines += ['HAVE_ALIAS']
else:
cppdefines += ['GLX_ALIAS_UNSUPPORTED']
+ if env['platform'] == 'haiku':
+ cppdefines += [
+ 'HAVE_PTHREAD',
+ 'HAVE_POSIX_MEMALIGN'
+ ]
if platform == 'windows':
cppdefines += [
'WIN32',
# See also:
# - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx
# - cl /?
+ if 'MSVC_VERSION' not in env or distutils.version.LooseVersion(env['MSVC_VERSION']) < distutils.version.LooseVersion('12.0'):
+ # Use bundled stdbool.h and stdint.h headers for older MSVC
+ # versions. stdint.h was introduced in MSVC 2010, but stdbool.h
+ # was only introduced in MSVC 2013.
+ top_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
+ env.Append(CPPPATH = [os.path.join(top_dir, 'include/c99')])
if env['build'] == 'debug':
ccflags += [
'/Od', # disable optimizations
]
ccflags += [
'/W3', # warning level
- #'/Wp64', # enable 64 bit porting warnings
+ '/wd4244', # conversion from 'type1' to 'type2', possible loss of data
+ '/wd4305', # truncation from 'type1' to 'type2'
+ '/wd4800', # forcing value to bool 'true' or 'false' (performance warning)
'/wd4996', # disable deprecated POSIX name warnings
]
if env['machine'] == 'x86':
env.Append(CCFLAGS = ['/MT'])
env.Append(SHCCFLAGS = ['/LD'])
+ # Static code analysis
+ if env['analyze']:
+ if env['msvc']:
+ # http://msdn.microsoft.com/en-us/library/ms173498.aspx
+ env.Append(CCFLAGS = [
+ '/analyze',
+ #'/analyze:log', '${TARGET.base}.xml',
+ ])
+ if env['clang']:
+ # scan-build will produce more comprehensive output
+ env.Append(CCFLAGS = ['--analyze'])
+
# Assembler options
if gcc_compat:
if env['machine'] == 'x86':