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from waflib import Utils
def __get_cc_env_vars__(cc):
cmd = cc + ['-dM', '-E', '-']
try:
p = Utils.subprocess.Popen(cmd, stdin=Utils.subprocess.PIPE,
stdout=Utils.subprocess.PIPE,
stderr=Utils.subprocess.PIPE)
p.stdin.write('\n'.encode())
return p.communicate()[0]
except Exception:
return ""
def __test_and_add_flags__(ctx, flags):
for flag in flags:
ctx.check_cc(cflags=flag, uselib_store="compiler", mandatory=False)
ctx.env.CFLAGS += ctx.env.CFLAGS_compiler
def __add_generic_flags__(ctx):
ctx.env.CFLAGS += ["-D_ISOC99_SOURCE", "-D_GNU_SOURCE",
"-D_LARGEFILE_SOURCE", "-D_FILE_OFFSET_BITS=64",
"-D_LARGEFILE64_SOURCE",
"-std=c99", "-Wall"]
if ctx.is_optimization():
ctx.env.CFLAGS += ['-O2']
if ctx.is_debug_build():
ctx.env.CFLAGS += ['-g']
__test_and_add_flags__(ctx, ["-Werror=implicit-function-declaration",
"-Wno-error=deprecated-declarations",
"-Wno-error=unused-function",
"-Wempty-body",
"-Wdisabled-optimization",
"-Wstrict-prototypes",
"-Wno-format-zero-length",
"-Werror=format-security",
"-Wno-redundant-decls"])
def __add_gcc_flags__(ctx):
ctx.env.CFLAGS += ["-Wall", "-Wundef", "-Wmissing-prototypes", "-Wshadow",
"-Wno-switch", "-Wparentheses", "-Wpointer-arith",
"-Wno-pointer-sign",
# GCC bug 66425
"-Wno-unused-result"]
def __add_clang_flags__(ctx):
ctx.env.CFLAGS += ["-Wno-logical-op-parentheses", "-fcolor-diagnostics",
"-Wno-tautological-compare",
"-Wno-tautological-constant-out-of-range-compare" ]
def __add_mswin_flags__(ctx):
ctx.env.CFLAGS += ['-D_WIN32_WINNT=0x0601', '-DUNICODE', '-DCOBJMACROS',
'-U__STRICT_ANSI__']
ctx.env.LAST_LINKFLAGS += ['-Wl,--major-os-version=6,--minor-os-version=0',
'-Wl,--major-subsystem-version=6,--minor-subsystem-version=0']
def __add_mingw_flags__(ctx):
__add_mswin_flags__(ctx)
ctx.env.CFLAGS += ['-municode', '-D__USE_MINGW_ANSI_STDIO=1']
ctx.env.LAST_LINKFLAGS += ['-municode', '-mwindows']
def __add_cygwin_flags__(ctx):
__add_mswin_flags__(ctx)
ctx.env.CFLAGS += ['-mwin32']
__compiler_map__ = {
'__GNUC__': __add_gcc_flags__,
'__clang__': __add_clang_flags__,
'__MINGW32__': __add_mingw_flags__,
'__CYGWIN__': __add_cygwin_flags__,
}
def __apply_map__(ctx, fnmap):
if not getattr(ctx, 'CC_ENV_VARS', None):
ctx.CC_ENV_VARS = str(__get_cc_env_vars__(ctx.env.CC))
for k, fn in fnmap.items():
if ctx.CC_ENV_VARS.find(k) > 0:
fn(ctx)
def configure(ctx):
__add_generic_flags__(ctx)
__apply_map__(ctx, __compiler_map__)
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