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add configure-time check for __int128 support in the compiler

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Paul Davis 2022-05-27 12:47:24 -06:00
parent c8feef51ab
commit cfe2ca9bf2
1 changed files with 14 additions and 0 deletions
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14
wscript
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@ -1262,6 +1262,20 @@ int main () { return 0; }
# MORE STUFF PROBABLY NEEDED HERE # MORE STUFF PROBABLY NEEDED HERE
conf.define ('WINDOWS', 1) conf.define ('WINDOWS', 1)
have_int128_support = conf.check_cc(fragment = '''
int main () { __int128 x = 0; return 0; }
''',
features = 'c',
mandatory = False,
execute = False,
msg = 'Checking for int128 support',
okmsg = 'lots of bits found.',
errmsg = 'Not found, no int128 support.')
if have_int128_support:
conf.env.append_value('CXXFLAGS', "-DCOMPILER_INT128_SUPPORT")
conf.env.append_value('CFLAGS', "-DCOMPILER_INT128_SUPPORT")
# Tell everyone that this is a waf build # Tell everyone that this is a waf build
conf.env.append_value('CFLAGS', '-DWAF_BUILD') conf.env.append_value('CFLAGS', '-DWAF_BUILD')