[gentoo-user] Trying to create 7-zip executable for MSWindows using Gentoo

[Mick <michaelkintzios@gmail.com>]

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Hi All

I have installed app-arch/p7zip-15.09 and I am trying to create a 7-zip 
archive which will run on MSWindows as an embedded executable.  It seems that 
only the standard console SFX module 7zCon.sfx has been installed, in 
/usr/lib64/p7zip/7zCon.sfx and this is used by default:

===================
$ 7za a -p -sfx archive.exe TEST1

7-Zip (a) [64] 15.09 beta : Copyright (c) 1999-2015 Igor Pavlov : 2015-10-16
p7zip Version 15.09 beta (locale=en_GB.UTF-8,Utf16=on,HugeFiles=on,64 bits,8 
CPUs Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz (106E5),ASM)

Scanning the drive:
1 folder, 2 files, 62 bytes (1 KiB)

Creating archive: archive.exe

Items to compress: 3

Write SFX: /usr/lib64/p7zip/7zCon.sfx : 404528 bytes (396 KiB)

Enter password (will not be echoed):
                        
Files read from disk: 2
Archive size: 404774 bytes (396 KiB)
Everything is Ok
===================

However, when I use it as shown above to create a .exe file, this fails to run 
on MSWindows, saying things like:

"The version of this file is not compatible with the version of Windows you're 
running.  Check your computer's system information to see whether you need an 
x86 (32-bit) or x64 (64-bit) version of the program, and then contact the 
software publisher."

Trying to run it in compatibility mode (Windows XP Service Pack 2) also fails.  
Finally, when I try to run it as Admininstrator it says:

"Windows cannot find 'C:\Users\user\Desktop\archive.exe'. Make sure you typed 
the name correctly, and then try again."


I did not tried to run it on the console in MSWindows, because the intended 
users would not know how to do this reliably.  It has to be a point and click 
solution.


Specifying any other SFX module listed in 
/usr/lib64/p7zip/help/cmdline/switches/sfx.htm#SFX_Module fails, since all 
other modules are missing:

=======================
$ 7za a -p -sfx7z.sfx archive.exe TEST1

7-Zip (a) [64] 15.09 beta : Copyright (c) 1999-2015 Igor Pavlov : 2015-10-16
p7zip Version 15.09 beta (locale=en_GB.UTF-8,Utf16=on,HugeFiles=on,64 bits,8 
CPUs Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz (106E5),ASM)


Error:
cannot find specified SFX module
7z.sfx
No more files


System ERROR:
Unknown error -2147024872
=======================


Using the GUI (in Dolphin) automatically tries to use 7z.sfx and fails with a 
pop up:

No more files
cannot find specified SFX module
/usr/lib64/p7zip/7z.sfx


Any idea how I can resolve this?  I looked at the application's website, but 
the 7z-extras only seem to contain MSWindows files and I cannot spot the 7z.sfx 
module anywhere.
-- 
Regards,
Mick

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