Not getting graphics even when reinstalled Ocaml (Mac OS X)?

Question

Following this post I installed brew and then reinstalled ocaml to include graphics:

/usr/bin/ruby -e \"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/i         


        

Answer 1

In general, homebrew puts all its binaries, libraries and settings in /usr/local/Cellar/PACKAGENAME/VERSIONNUMBER but it also creates symbolic links in /usr/local/bin that point to the latest package/version.

So, if you look at my /usr/local/bin you will see:

ls -l /usr/local/bin

Output

lrwxr-xr-x  1 mark  admin        26 30 Jan  2016 ack -> ../Cellar/ack/2.14/bin/ack
lrwxr-xr-x  1 mark  admin        43 11 Oct 13:30 amqp-consume -> ../Cellar/rabbitmq-c/0.8.0/bin/amqp-consume
lrwxr-xr-x  1 mark  admin        49 11 Oct 13:30 amqp-declare-queue -> ../Cellar/rabbitmq-c/0.8.0/bin/amqp-declare-queue
lrwxr-xr-x  1 mark  admin        48 11 Oct 13:30 amqp-delete-queue -> ../Cellar/rabbitmq-c/0.8.0/bin/amqp-delete-queue
lrwxr-xr-x  1 mark  admin        39 11 Oct 13:30 amqp-get -> ../Cellar/rabbitmq-c/0.8.0/bin/amqp-get
lrwxr-xr-x  1 mark  admin        43 11 Oct 13:30 amqp-publish -> ../Cellar/rabbitmq-c/0.8.0/bin/amqp-publish
lrwxr-xr-x  1 mark  admin        28 17 Jul 22:49 7z -> ../Cellar/p7zip/16.02/bin/7z
lrwxr-xr-x  1 mark  admin        29 17 Jul 22:49 7za -> ../Cellar/p7zip/16.02/bin/7za
lrwxr-xr-x  1 mark  admin        29 17 Jul 22:49 7zr -> ../Cellar/p7zip/16.02/bin/7zr
lrwxr

As you can see, ack points to version 2.14 of ack in the Cellar and so on.

In general therefore, when using homebrew, you should not directly use anything in the Cellar because that is version-specific. Instead, you should use /usr/local/bin and rely on that pointing to the latest/greatest thing in the Cellar. That way you won't have pain when upgrading and you won't have to change all your app-1.01 to app-1.0.2 in all your scripts because you will just be using app (which, by virtue of your PATH, means /usr/local/bin/app) instead of anything version-specific.

So, I would suggest you edit your bash profile, using TextEdit like this:

open -e ~/.profile

and add this line at the end:

export PATH=/usr/local/bin:$PATH

Remove all your version-specific aliases and log out and then back in again.