scons: Removed -Werror for the gem5 20.1 release

While gem5 compiles on all our supported compilers, removing the -Werror
flag on the stable branch ensures that, as new compilers are released
with stricter warnings, gem5 remains compilable.

Change-Id: I9a356472dc4d729a3fef9f1455814c900103bd66
Maintainer: Bobby R. Bruce <>
Reviewed-by: Jason Lowe-Power <>
Reviewed-by: Gabe Black <>
Tested-by: kokoro <>
1 file changed