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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Having a problem building with win32ada
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References: <0oq1p5dd88dhfkd1j868en04qa0hmcmj9v@4ax.com>
Date: Fri, 5 Mar 2010 14:12:52 +0100
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Date: 2010-03-05T14:12:50+01:00
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On Fri, 05 Mar 2010 11:41:56 +0000, John McCabe wrote:

> gnatmake -d -PC:\\AdaProjects\\TestMidiDevs\\testmididevs.gpr
> MidiDevs.adb
> gnatbind -I- -x C:\AdaProjects\TestMidiDevs\mididevs.ali
> gnatlink C:\AdaProjects\TestMidiDevs\mididevs.ali
> -LC:\GNAT\2009\lib\win32ada\ -lwin32ada -o
> C:\AdaProjects\TestMidiDevs\mididevs.exe
> c:\adaprojects\testmididevs\MidiDevs.o:MidiDevs.adb:(.text+0x2d):
> undefined reference to `_midiInGetNumDevs@0'
> c:\adaprojects\testmididevs\MidiDevs.o:MidiDevs.adb:(.text+0x7d):
> undefined reference to `_midiOutGetNumDevs@0'
> collect2: ld returned 1 exit status
> gnatlink: error when calling C:\GNAT\2009\bin\gcc.exe
> gnatmake: *** link failed.

You have to link against Winmm.lib change the gpr file as follows:

with "win32ada.gpr";
 
project TestMidiDevs is
 
    for Source_Dirs use (".");
    for Source_Files use ("MidiDevs.adb");
    for Main use ("MidiDevs.adb");
 
    package Compiler is
       for Default_Switches ("ada") use ("-gnat05");
    end Compiler;
 
    package Linker is
       for Default_Switches ("ada") use ("-lwinmm");
    end Linker;
 
end TestMidiDevs;

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de