I reproduce.
There was already a patch to port to 7.2.0 at
5c41076bd7610d03431fd0dd89bd0fdc7f30d6bd but the migration wasn't complete.
One workaround that does not require modifying the code is:
sudo apt-get install g++-6 gcc-6
CC=gcc-6 CXX=g++-6 scons
________________________________
From: gem5-users <gem5-users-boun...@gem5.org> on behalf of Paul V. Gratz
<pgr...@gratz1.com>
Sent: Thursday, February 22, 2018 1:56 PM
To: gem5 users mailing list
Subject: [gem5-users] Errors building on Ubuntu 17.10
Hi All,
I just did a clean clone of the latest github on my Ubuntu 17.10 system (gcc
7.2.0). In this setup builds fail due to two warnings (because -Werror is on
in the build scripts).
First in decode-method.cc.inc there are some case statements that have
fallthrough conditions. To get around this I added:
main.Append(CXXFLAGS=['-Wno-implicit-fallthrough'])
to the SConstruct file (is this the right way to do this?).
Second, in neon64_mem.hh there are some potentially uninitialized variables.
To get around this I added maybe-uninitialized to the CCFLAGS:
main.Append(CCFLAGS=['-Werror',
'-Wno-error=deprecated-declarations',
'-Wno-error=deprecated',
'-Wno-error=maybe-uninitialized',
])
After this the build completes cleanly. Probably those warnings should be
fixed in the source code directly but I am not yet well versed enough in how
gem5 works to do that yet. I'm guessing that these warnings are new with my
gcc version is why I don't see anyone posting on here about them yet..
Paul
--
-----------------------------------------
Paul V. Gratz
Associate Professor
ECE Dept, Texas A&M University
Office: 333M WERC
Phone: 979-488-4551
http://cesg.tamu.edu/faculty/paul-gratz/
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