How to run on linux

[ghost]

Hi
Write more the process of running programs using the library libui.cr on linux (ubuntu)

[refi64]

You mean...like this?

https://github.com/Fusion/libui.cr/blob/master/README.md#development

The instructions are already for OSX and Linux.

[ghost]

@kirbyfan64 This instruction is unclear

[Fusion]

Sergiy,

What part of the instructions, specifically, do you find unclear? If you share with us where you are stuck, this will allow me to update the documentation accordingly.

[tzekid]

@Yenel
The documentation on libui's page is fuzzy.
The static linking in crystal didn't work (as I expected).

I haven't found an 'easy-way' of installing libui on a fresh install of ubuntu.
The only way I've found is to download, build and install the libui and libpcre libraries.
The process (in my experience was/) is a bit tedious.

Here's a little script I wrote that more or less automates this process (tested on a fresh install of Ubuntu 17.04)

[nedpals]

@tzekid I followed your script but it appears it has conflicts with the dependencies
/usr/bin/ld: warning: libpcre.so.3, needed by //lib/x86_64-linux-gnu/libglib-2.0.so.0, may conflict with libpcre.so.1

I'm using 16.04 btw

[tzekid]

@nedpals Can you give out a bit more info please ?
e.g. Did you get any errors / warnings whilst following the script ? How did you get the warning ? etc.

[nedpals]

@tzekid Nevermind, it was just a warning. Works fine except on compiling it shows that warning. Btw your script is fine except when copying libraries. It throws an error having no "out" folder when copying libui.

[tzekid]

@nedpals Ok. Thanks. Fixed it :)

[ddrscott]

on OSX I get the following:

% crystal build --link-flags "-L$(PWD)" src/examples/controlgallery/main.cr
ld: library not found for -lui
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Error: execution of command failed with code: 1: `cc -o "/Users/scott.pierce/git/libui.cr/main" "${@}" -L/Users/scott.pierce/git/libui.cr -rdynamic  -lui -lpcre -lgc -lpthread /usr/local/Cellar/crystal-lang/0.22.0/src/ext/libcrystal.a -levent -liconv -ldl -L/usr/lib -L/usr/local/lib`

[tzekid]

@ddrscott: Crystal doesn't recognize libui on your system. You need to build it.

[rubyFeedback]

You need to build it.

Not sure.

The ruby gem comes with the bindings for osx and windows so it just works there.

Perhaps a crystal shard could have the same and support it. Perhaps even on
windows now? The above comment is ~5 years old so perhaps things improved
a lot meanwhile.

Edit: For those unaware, I referred to kojix2' bindings in ruby here:

https://github.com/kojix2/LibUI