A DUB Case Study: Compiling DMD as a Library

[Venkat]

This is regarding the latest D blog post. Jacob Carlborg is here, 
so I figured I'd post it.

https://dlang.org/blog/2017/08/01/a-dub-case-study-compiling-dmd-as-a-library/#comment-2922

Simply changing the targetType from library to dynamicLibrary 
breaks the code. What is going on with it ?

--dub.sdl--
name "dmd-dub-test"
description "Test of the DMD Dub package"
license "BSL 1.0"

sourcePaths "."
targetType "library"
dependency "dmd" path="../DSource/dmd/"
--end dub.sdl--

-- output --
venkat at venkat-U46E /d/Documents/NetbeansProjects/dmd-test $ dub 
build
Performing "debug" build using dmd for x86_64.
-- end output --

--dub.sdl--
name "dmd-dub-test"
description "Test of the DMD Dub package"
license "BSL 1.0"

sourcePaths "."
targetType "dynamicLibrary"
dependency "dmd" path="../DSource/dmd/"
--end dub.sdl--

Performing "debug" build using dmd for x86_64.
dmd ~stable: building configuration "library"...
../DSource/dmd/src/ddmd/scanmscoff.d(180,10): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(181,10): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(182,10): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(183,10): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(184,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(185,15): Error: undefined 
identifier BYTE
../DSource/dmd/src/ddmd/scanmscoff.d(185,15): Error: undefined 
identifier BYTE
../DSource/dmd/src/ddmd/scanmscoff.d(187,14): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(187,14): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(188,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(189,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(190,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(196,11): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(197,11): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(198,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(199,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(200,11): Error: undefined 
identifier DWORD
../DSource/dmd/src/ddmd/scanmscoff.d(201,11): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(202,11): Error: undefined 
identifier WORD
../DSource/dmd/src/ddmd/scanmscoff.d(225,24): Error: undefined 
identifier BYTE
dmd failed with exit code 1.