OpenEuphoria

1. Phix DLL dependency issue

• Posted by lesterb Jul 01, 2018
• 1524 views

Hi Pete,

I have a full IUP installation on my machine (I use it with other languages) and I updated to IUP 3.25 / CD 5.11.1 last week.
To my great surprise Phix then stopped being able to run any PGui programs. The error reported was that it was unable to load iupcontrols.dll.

A bit of digging showed that iupcontrols was fine but it seems to have an internal dependency on something in another iup-related dll and was missing a particular function. (I haven't looked at the interdependencies in detail yet)

By replacing all the iup dlls in PGui\win32 with the ones from my installation, everything works again.
It looks like Windies is loading my system32 dlls for dependencies because that's close to the front of the library search order.
Incidentally, this also fixes my problem with simple_paint which now also runs fine.

What I would like is for Phix to use my existing IUP installation and deal with binding errors myself.
I will have a look at doing this (in a sanitary way if such a thing is possible).

As far as I can tell, the only easy way to get stuff loaded ahead of system32 is to put it in the directory the exe is in.

Les

3. Re: Phix DLL dependency issue

• Posted by lesterb Jul 04, 2018
• 1397 views

Hi Pete

Thanks for the changes. After making them and one extra change to iup_init1() it worked fine (with win32 empty).
Following a bit of rationalisation (sorry, can't help myself) open_dll() ended up looking like this...

function iup_open_dll(sequence libs) 
string path = libs[libidx] 
 
    if platform()=WINDOWS then 
        if dll_path != "" and chdir(dll_path)=0 then ?9/0 end if 
    elsif platform()=LINUX then 
--      for now, see demo/pGUI/lnx/installation.txt... 
--      path = dll_path&path 
    end if 
 
    atom res = open_dll(path) 
    if res=0 then iup_link_error(path) end if 
    return res 
end function 

The start of iup_init1() ends up like this (without comment blocks and bindings) ...

procedure iup_init1(nullable_string dll_root) 
    sequence s = include_paths() 
    string dll_dir = sprintf("%s%d",{dirs[libidx],machine_bits()}) 
    for i=1 to length(s) do 
        sequence sip = split_path(s[i]) 
        if sip[$]="pGUI" then 
            sip = append(sip,dll_dir) 
            dll_path = join_path(sip,trailsep:=1) 
 
            if get_file_type(dll_path)=FILETYPE_DIRECTORY then 
                s = {} 
                exit 
            end if 
        end if 
    end for 
    if s!={} then 
        -- allow pGUI in the app dir, with a win/lnx,32/64 sub-dir: 
        for i=1 to length(s) do 
            string dll_path = join_path({s[i],dll_dir}) 
            if get_file_type(dll_path)=FILETYPE_DIRECTORY then 
                s = {} 
                exit 
            end if 
        end for 
    end if 
    if s!={} then 
        string dll_path = join_path({dll_root,dll_dir}) 
        if get_file_type(dll_path)=FILETYPE_DIRECTORY then 
            s = {} 
        end if 
    end if 
 
-- LES: Code changed here 
    dll_path = "" 
 
--DEV: 
    if platform()=WINDOWS then 
        string curr_dir = current_dir() 
 
-- LES: I added the first test in next line 
        if dll_path != "" and chdir(dll_path)=0 then ?9/0 end if 
         
        if open_dll("msvcr120.dll")=0 then 
            puts(1,"fatal error: msvcr120.dll could not be loaded\n") 
            puts(1," try installing Visual C++ Redistributable Packages for Visual Studio 2013\n") 
            puts(1," from https://www.microsoft.com/en-us/download/details.aspx?id=40784 \n") 
            -- ( https://www.microsoft.com/en-us/download/details.aspx?id=40784 ) 
            {} = wait_key() 
            ?9/0 
        end if 
        if chdir(curr_dir)=0 then ?9/0 end if 
    end if 

Les

5. Re: Phix DLL dependency issue

• Posted by lesterb Jul 04, 2018
• 1369 views

Ok, thanks.

Incidentally, I had a look at the Rosetta animate_pendulum2.exw 'resizing madness' problem and I have a fix. However, there's another problem with it (which affects the Arwen version too) that I don't have a fix for yet. More to come.

Is it Ok to post "Phix example stuff" like that here?

Les

7. Re: Phix DLL dependency issue

• Posted by petelomax Jul 04, 2018
• 1366 views

Yeah, of course - please and thank you too.