missing icui18n for gem

[petr.2006]

After some googling I found installation guidance:

https://github.com/gollum/gollum/wiki/Installation

Petr 

> On 20 Apr 2018, at 16:54, Ryan Schmidt <ryandesign at macports.org> wrote:
> 
> 
> On Apr 20, 2018, at 09:14, petr.2006 wrote:
> 
>> I am trying to instal gollum in gem:
>> 
>> sudo gem install gollum
>> Building native extensions.  This could take a while...
>> ERROR:  Error installing gollum:
>> 	ERROR: Failed to build gem native extension.
>> 
>>   current directory: /Library/Ruby/Gems/2.3.0/gems/charlock_holmes-0.7.6/ext/charlock_holmes
>> /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -r ./siteconf20180420-50387-908xpy.rb extconf.rb
>> checking for main() in -licui18n... no
>> checking for main() in -licui18n... no
>> 
>> 
>> ***************************************************************************************
>> *********** icu required (brew install icu4c or apt-get install libicu-dev) ***********
>> ***************************************************************************************
>> 
>> I have 
>> 
>> port installed icu
>> The following ports are currently installed:
>> icu @58.2_2 (active)
>> 
>> and 
>> 
>> in /opt/local/lib
>> ls *icui18*
>> libicui18n.58.2.dylib	libicui18n.58.dylib	libicui18n.a		libicui18n.dylib
>> 
>> where could be the problem?
> 
> You haven't told "gem" where your MacPorts icu is located (and I don't know ruby so I don't know how to tell it).
> 
>