build error

[edisonchan]

build error

[edisonchan]

Hi,
yes, the problem is caused by the gcc-11 in ubuntu missing "cc".
The commands below can resolved it:

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-11 11
sudo ln -s /usr/bin/gcc /usr/bin/cc

[travisdowns]

Most likely the file nasm-utils/nasm-utils-helper.c doesn't exist for, you can confirm?

It would be because you didn't initialize submodules. See this section of the doc:

https://github.com/travisdowns/uarch-bench#building

Try running git submodule udpate --init.

[nemequ]

I think it's actually because cc isn't in the path, which is definitely weird if gcc is installed. I'm not sure exactly what the mechanism for setting up cc/c++ on Ubuntu looks like, but the first thing I'd do would be to make sure the build-essential packages is installed. If that doesn't work, try update-alternatives --config cc.

Basically (at least on Debian, I don't have a convenient Ubuntu install sitting around at the moment), there should be a symlink from /usr/bin/cc to /etc/alternatives/cc, and /etc/alternatives/cc should be a symlink to /usr/bin/gcc, but this should all be managed by update-alternatives so you shouldn't create the symlinks yourself.

If cc isn't properly configured you'll probably need to go through the same process to get c++ configured as well.

[travisdowns]

Hi Evan, thanks for the comment!

I think you are right that this error doesn't come from cc itself, but some problem launching cc. Errors from within cc look more like (in this case, if foo.c is missing):

cc: error: foo.c: No such file or directory

Oddly though, if I try to reproduce this on a system without cc in the path, I still get a different error:

make: cc: Command not found

OS and make are slightly different though: Ubuntu 20.04 and make 4.2.1.

So I'm not totally sure what's going on.

@edisonchan what does which cc report on your system?

In any case, if the problem is something with cc specifically (which is usually a symlink to gcc, more or less), but gcc is installed fine, you can just use gcc directly:

CC=gcc make

Or make it permanent:

echo CC=gcc > local.mk

local.mk is a file where you can put any local make vars customizations.