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Fix configure script to work with Apple Clang 10 #21200

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Fix configure script to work with Apple Clang 10 #21200

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10 changes: 4 additions & 6 deletions configure
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Original file line number Diff line number Diff line change
Expand Up @@ -612,10 +612,8 @@ def try_check_compiler(cc, lang):

values = (proc.communicate()[0].split() + ['0'] * 7)[0:7]
is_clang = values[0] == '1'
gcc_version = '%s.%s.%s' % tuple(values[1:1+3])
clang_version = '%s.%s.%s' % tuple(values[4:4+3])

return (True, is_clang, clang_version, gcc_version)
return (True, is_clang, tuple(values[4:4+3]), tuple(values[1:1+3]))


#
Expand Down Expand Up @@ -667,7 +665,7 @@ def get_llvm_version(cc):

def get_xcode_version(cc):
return get_version_helper(
cc, r"(^Apple LLVM version) ([5-9]\.[0-9]+)")
cc, r"(^Apple LLVM version) ([0-9]+\.[0-9]+)")

def get_gas_version(cc):
try:
Expand Down Expand Up @@ -707,13 +705,13 @@ def check_compiler(o):
ok, is_clang, clang_version, gcc_version = try_check_compiler(CXX, 'c++')
if not ok:
warn('failed to autodetect C++ compiler version (CXX=%s)' % CXX)
elif clang_version < '3.4.2' if is_clang else gcc_version < '4.9.4':
elif clang_version < (3, 4, 2) if is_clang else gcc_version < (4, 9, 4):
warn('C++ compiler too old, need g++ 4.9.4 or clang++ 3.4.2 (CXX=%s)' % CXX)

ok, is_clang, clang_version, gcc_version = try_check_compiler(CC, 'c')
if not ok:
warn('failed to autodetect C compiler version (CC=%s)' % CC)
elif not is_clang and gcc_version < '4.2.0':
elif not is_clang and gcc_version < (4, 2, 0):
# clang 3.2 is a little white lie because any clang version will probably
# do for the C bits. However, we might as well encourage people to upgrade
# to a version that is not completely ancient.
Expand Down