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digitalmars.D.learn - How do you compile DMD on Windows?

reply Blatnik <blatblatnik gmail.com> writes:
I wanna hack on the compiler, but I've spend 3 hours and I can't 
get the damned thing to compile!

Building DMD itself was simple since there was a visual studio 
project (thank you to whoever made it), but for druntime and 
phobos I can't figure it out.

The instructions on https://wiki.dlang.org/Building_under_Windows 
look like they're outdated.

They say to use the digitalmars make tool and not the normal make 
that I have installed. Great, no problem, except it didn't come 
installed with the compiler as is advertised. I don't have a make 
program in D/dmd2/windows/bin and I can't find a version of it 
online.

When I try to build it with regular make (not ditialmars make) I 
get errors even when I follow the instructions.

Here is the output I get:

```
C:\D\druntime>make -f win64.mak -j4 lib\druntime64.lib

"\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\amd64\cl" -c 
-Foerrno_c_64.obj /Z7 /I"\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.27.29110"\include 
/I"\Program Files (x86)\Windows 
Kits\10\Include\10.0.18362.0"\ucrt src\core\stdc\errno.c
process_begin: CreateProcess(NULL, "\Program Files 
(x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.27.29110\bin\amd64\cl" -c 
-Foerrno_c_64.obj /Z7 "/I\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.27.29110\include" 
"/I\Program Files (x86)\Windows 
Kits\10\Include\10.0.18362.0\ucrt" src\core\stdc\errno.c, ...) 
failed.
make (e=2): The system cannot find the file specified.
make: *** [win64.mak:79: errno_c_64.obj] Error 2
```

Is there a windows hacker out there that could lend a hand? :)
May 01 2021
next sibling parent reply MoonlightSentinel <moonlightsentinel disroot.org> writes:
On Saturday, 1 May 2021 at 22:44:34 UTC, Blatnik wrote:

 I wanna hack on the compiler, but I've spend 3 hours and I 
 can't get the damned thing to compile!


You probably need to update the VS paths to match your local 
installation, Microsoft apparently changed their directory layout 
a few years ago AFAICT.

I use the following patch for win64.mak in druntime/phobos:


```patch
diff --git a/win64.mak b/win64.mak
index 1b4a9208..6f37ba13 100644
--- a/win64.mak
+++ b/win64.mak
   -6,7 +6,7    MODEL=64
  #VCDIR=\Program Files (x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.27.29110
  #SDKDIR=\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0

-VCDIR=\Program Files (x86)\Microsoft Visual Studio 10.0\VC
+VCDIR=C:\Program Files (x86)\Microsoft Visual 
Studio\2017\Community\VC\Tools\MSVC\14.16.27023\bin\Hostx64\x64
  SDKDIR=\Program Files (x86)\Microsoft SDKs\Windows\v7.0A

  DMD_DIR=..\dmd
   -19,9 +19,9    
DMD=$(DMD_DIR)\generated\$(OS)\$(BUILD)\$(MODEL)\dmd

  BINDIR=$(VCDIR)\bin\amd64

-CC=$(BINDIR)\cl
-LD=$(BINDIR)\link
-AR=$(BINDIR)\lib
+CC=$(VCDIR)\cl
+LD=$(VCDIR)\link
+AR=$(VCDIR)\lib
  CP=cp

  DOCDIR=doc
```
May 01 2021
parent reply Blatnik <blatblatnik gmail.com> writes:
On Saturday, 1 May 2021 at 23:07:35 UTC, MoonlightSentinel wrote:

 You probably need to update the VS paths to match your local 
 installation, Microsoft apparently changed their directory 
 layout a few years ago AFAICT.


Thanks for the tip. I think I managed to get it to work..

So not only did I have to change the compiler tools path, but 
also the path to the dmd I compiled earlier. And also there was a 
"*" in front of the compile command for some reason which made 
the whole thing not work. Every command actually has that in 
front of it for some reason...

```
unittest: $(SRCS) $(DRUNTIME)
   *"$(DMD)" $(UDFLAGS) ...
```

----->

```
unittest: $(SRCS) $(DRUNTIME)
   "$(DMD)" $(UDFLAGS) ...
```

Whatever, that was very needlessly painful... build systems are 
terrible things.

Here's hoping that phobos isn't as annoying >.>
May 01 2021
parent Blatnik <blatblatnik gmail.com> writes:
On Saturday, 1 May 2021 at 23:49:49 UTC, Blatnik wrote:

 Here's hoping that phobos isn't as annoying >.>


It is just as annoying. Even after patching the paths, still 
errors out..

```
C:\D\phobos>make -f win64.mak -j4 phobos64.lib
cd etc\c\zlib
"make" -f win64.mak MODEL=64 zlib64.lib "CC=C:\Program Files 
(x86)\Microsoft Visual 
Studio\2019\Community\VC\Tools\MSVC\14.28.29910\bin\Hostx64\x64\cl"
"LIB=C:\Program Files (x86)\Microsoft Visual
Studio\2019\Community\VC\Tools\MSVC\14.28.29910\bin\Hostx64\x64\lib"
"VCDIR=C:\Program Files (x86)\Microsoft Visual
Studio\2019\Community\VC\Tools\MSVC\14.28.29910"
make[1]: Entering directory 'C:/D/phobos'
make[1]: *** No rule to make target 'zlib64.lib'.  Stop.
make[1]: Leaving directory 'C:/D/phobos'
make: *** [win64.mak:512: etc\c\zlib\zlib64.lib] Error 2
```

So then I gave up and tried Digger. I should have just tried that 
from the start. It just worked.
May 01 2021
prev sibling next sibling parent reply MoonlightSentinel <moonlightsentinel disroot.org> writes:
On Saturday, 1 May 2021 at 22:44:34 UTC, Blatnik wrote:

 They say to use the digitalmars make tool and not the normal 
 make that I have installed. Great, no problem, except it didn't 
 come installed with the compiler as is advertised. I don't have 
 a make program in D/dmd2/windows/bin and I can't find a version 
 of it online.


Missed that in my initial reply. DM make is included in DMC which 
is available on this site, see the "other downloads".

e.g. http://downloads.dlang.org/other/dm857c.zip
May 01 2021
parent Blatnik <blatblatnik gmail.com> writes:
On Sunday, 2 May 2021 at 00:53:42 UTC, MoonlightSentinel wrote:

 DM make is included in DMC which is available on this site, see 
 the "other downloads".


Yea thanks, I couldn't find it anywhere separately before.

So in the end even though digger just worked, I didn't realize 
that it just installs an old version of visual studio. And of 
course I wanted to build everything with my version. So back to 
broken make it is.

I managed to make DM make work. But this build "experience" was 
terrible..
May 02 2021
prev sibling parent reply Imperatorn <johan_forsberg_86 hotmail.com> writes:
On Saturday, 1 May 2021 at 22:44:34 UTC, Blatnik wrote:

 I wanna hack on the compiler, but I've spend 3 hours and I 
 can't get the damned thing to compile!

 [...]


For me it took 3 minutes.

I opened the VS solution provided and pressed "build". Ta-daa!
May 02 2021
parent Blatnik <blatblatnik gmail.com> writes:
On Sunday, 2 May 2021 at 14:19:09 UTC, Imperatorn wrote:

 I opened the VS solution provided and pressed "build". Ta-daa!


Haha yea, but wait until you try to build the runtime or phobos ;)

I hope you don't have to/want to. But I can try to help if you do.
May 02 2021