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scons: Increase the minimum clang version to 3.9.

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This matches what's documented elsewhere. We *need* version 3.4 to
support c++14, but we support only as far back as 3.9. Also, the
argument to set c++14 as the standard is different in 3.4 and earlier
(-std=c++1y), so it makes life slightly easier to move past it to 3.9.

Change-Id: I66fa578dd3222c62907496a888f8068ed0918c7b
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/34819
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Gabe Black
2020-09-17 22:31:50 -07:00
parent c8cde1fefa
commit a83316ec00
1 changed files with 2 additions and 2 deletions
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SConstruct
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@@ -417,8 +417,8 @@ elif main['CLANG']:
clang_version_match = clang_version_re.search(CXX_version)
if (clang_version_match):
clang_version = clang_version_match.groups()[0]
if compareVersions(clang_version, "3.1") < 0:
error('clang version 3.1 or newer required.\n'
if compareVersions(clang_version, "3.9") < 0:
error('clang version 3.9 or newer required.\n'
'Installed version:', clang_version)
else:
error('Unable to determine clang version.')