Alex Richardson has uploaded this change for review. ( https://gem5-review.googlesource.com/c/public/gem5/+/68758?usp=email )

Change subject: scons: default to not duplicating sources in the build directory
......................................................................

scons: default to not duplicating sources in the build directory

We now default to --no-duplicate-sources, but keep --duplicate-sources to
opt-out of this new build behaviour in case it introduces regressions.

Change-Id: I2f01ceaef7b6b9bff80f4402081f007110f7e6f3
---
M SConstruct
1 file changed, 6 insertions(+), 0 deletions(-)



diff --git a/SConstruct b/SConstruct
index 7d6f406..e6e2157 100755
--- a/SConstruct
+++ b/SConstruct
@@ -145,6 +145,12 @@
           help='Enable support for the gprof profiler')
 AddOption('--pprof', action='store_true',
           help='Enable support for the pprof profiler')
+# Default to --no-duplicate-sources, but keep --duplicate-sources to opt-out +# of this new build behaviour in case it introduces regressions. We could use
+# action=argparse.BooleanOptionalAction here once Python 3.9 is required.
+AddOption('--duplicate-sources', action='store_true', default=False,
+          dest='duplicate_sources',
+          help='Create symlinks to sources in the build directory')
 AddOption('--no-duplicate-sources', action='store_false',
           dest='duplicate_sources',
           help='Do not create symlinks to sources in the build directory')

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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I2f01ceaef7b6b9bff80f4402081f007110f7e6f3
Gerrit-Change-Number: 68758
Gerrit-PatchSet: 1
Gerrit-Owner: Alex Richardson <alexrichard...@google.com>
Gerrit-MessageType: newchange
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