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Re: Where are the ICU Headers?
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Re: Where are the ICU Headers?


  • Subject: Re: Where are the ICU Headers?
  • From: Alastair Houghton <email@hidden>
  • Date: Thu, 06 Oct 2016 13:23:51 +0100

On 6 Oct 2016, at 10:43, email@hidden wrote:
>
> Pretty sure the reason is a simple one.
> If you look at the history of open source in the OS on the Apple open source page, you'll notice they pretty much bump the ICU version they use annually.
> Although unlikely, ICU might change in ways that breaks your app. They don't want to support ICU directly. It's a pretty tough API in C or C++

Also, historically, C++ ABI compatibility has been a thorny issue.  Even now, if you want a C++ dynamic library to provide binary compatibility you have to be pretty careful.

ICU is largely a C++ library.  It does have a C interface, but I’m not sure the entire feature set is available without using C++, and ICU explicitly doesn’t provide for binary compatibility at the C++ API level (or even for some of its C API(!)) - see

http://userguide.icu-project.org/design#TOC-ICU-Binary-Compatibility:-Using-ICU-as-an-Operating-System-Level-Library

Kind regards,

Alastair.

--
http://alastairs-place.net


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  • Follow-Ups:
    • Re: Where are the ICU Headers?
      • From: "Gary L. Wade" <email@hidden>
References: 
 >Where are the ICU Headers? (From: "Gerriet M. Denkmann" <email@hidden>)
 >Re: Where are the ICU Headers? (From: "Gary L. Wade" <email@hidden>)
 >Re: Where are the ICU Headers? (From: email@hidden)

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