scons: Remove -Werror for the gem5 21.0 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: Ic7bb17e770684211330c09143bd8a26720becb9a
Reviewed-by: Bobby R. Bruce <>
Maintainer: Bobby R. Bruce <>
Tested-by: kokoro <>
1 file changed