Natural sort from Lazarus in Linux

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I have found naturalstrcmp function in Linux and I think it is what I need. Any example of how to use it in Ubuntu, Debian and FreeBSD?

http://www.unix.com/man-page/debian/3/NATURALSTRCMP/[^]

What is the libname I should put in my external declaration? On my Debian 7.7 it is on /usr/share/man/man3/naturalstrcmp.3.gz from Alliance package.

I tried :

function naturalstrcmp(s, t: PChar): Integer; external 'alliance' name 'naturalstrcmp';

without success. The error message says that "cannot find -lalliance".

Posted 10-May-15 11:30am

Member 11275534

Updated 10-May-15 20:34pm

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Richard MacCutchan · Answer 1 · 2015-05-10T21:20:00

Solution 1

The error message is telling you that the alliance library (alliance.a or alliance.so) cannot be found in the library search path. Check where you have installed it and make sure you provide the path to the linker.

Posted 10-May-15 21:20pm

Richard MacCutchan

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Member 11275534 11-May-15 4:21am

The problem is that I don't know which is the library name, I know only the package name, Alliance.

Richard MacCutchan 11-May-15 4:27am

Please read my answer again, the library name is alliance as shown in the error message. I would suggest a closer reading of the Alliance package documentation.

Member 11275534 11-May-15 6:30am

Well, now I know that they are on /usr/lib/alliance/, but don't know the name of the lib. All files are named as libAbc.so.

Richard MacCutchan 11-May-15 6:38am

All files with the .so extension are library files. You need to check the documentation to see which one you need for the function you want to use.

Member 11275534 11-May-15 10:40am

I am guessing that it is on libMut.so because example page cites Mut.h. So I tried:

function naturalstrcmp(s, t: PChar): Integer; external 'libMut.so' name 'naturalstrcmp';

but Lazarus debugger returns an error condition when running.

Richard MacCutchan 11-May-15 10:59am

Sorry but I cannot guess what error condition. If you want help on code problems then you need to provide all the details: The lines of code where the error occurs, the values of any variables involved, and the exact error message or code.

Member 11275534 11-May-15 11:49am

The image is here: http://postimg.org/image/ty2kn3yvp/

Richard MacCutchan 11-May-15 11:56am

Unfortunately that message tells you nothing of any use. You need to contact the product owners to find out what circumstances could cause it.

Natural sort from Lazarus in Linux

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Natural sort from Lazarus in Linux

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