• WhatMe Worry (7/7) May 08 2020 This is a beginner's question but how to I get past this?
• Mike Parker (14/21) May 08 2020 No matter the linker one uses (OPTLINK, MS link, lld), there are
• kinke (3/5) May 08 2020 This doesn't have anything to do with LDC, but it should just

WhatMe Worry <kheaser gmail.com> writes:

This is a beginner's question but how to I get past this?

C:\Users\Kyle\AppData\Local\dub\packages\arsd-official-7.2.0\ar
d-official>lld-link terminal.obj

lld-link: error: subsystem must be defined

help mentions this option, but
  /subsystem:<value>      Specify subsystem

Is there a good tutorial for ldc2 because I haven't been able to 
find anything.

Mike Parker <aldacron gmail.com> writes:

On Friday, 8 May 2020 at 21:00:12 UTC, WhatMe Worry wrote:
 This is a beginner's question but how to I get past this?

 C:\Users\Kyle\AppData\Local\dub\packages\arsd-official-7.2.0\ar
d-official>lld-link terminal.obj

 lld-link: error: subsystem must be defined

 help mentions this option, but
  /subsystem:<value>      Specify subsystem

 Is there a good tutorial for ldc2 because I haven't been able 
 to find anything.

No matter the linker one uses (OPTLINK, MS link, lld), there are 
two "subsystems" for Windows program: Windows and Console. The 
latter starts with console window, the former does not.

Generally, when using the Windows subsystem, WinMain is required 
(and in D, DRuntime must be manually initialized). When using the 
Console subsystem, main is required. OPTLINK, however, will 
accept main with the Windows subsystem just fine. MS link can be 
configured with the /ENTRY flag to accept either main or WinMain 
in either subsystem (e.g., /SUBSYSTEM:WINDOWS 
/ENTRY:mainCRTStartup).

So for lld, you'll want /subsystem:windows for no console window 
or /subsystem:console if you want the console. You can still use 
main with /subsystem:windows by also passing /entry:main.

kinke <noone nowhere.com> writes:

On Friday, 8 May 2020 at 21:00:12 UTC, WhatMe Worry wrote:
 C:\Users\Kyle\AppData\Local\dub\packages\arsd-official-7.2.0\ar
d-official>lld-link terminal.obj
 lld-link: error: subsystem must be defined

This doesn't have anything to do with LDC, but it should just 
work with `ldc2 terminal.obj`.