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digitalmars.D.announce - D Contributor Tutorials Part 1 - Building the Compiler From Source

reply Mike Parker <aldacron gmail.com> writes:
Have you ever considered hacking on the D compiler but were 
intimidated by the build process? Dennis Korpel has been working 
on a series of video tutorials aimed at helping potential 
contributors establish a foundation from which to start 
contributing code.

In this first tutorial of the series, he gives an overview of 
what happens when compiling a D source file, then shows how to 
set up an environment from which to build dmd and the standard 
library/runtime binary. The next video will use this setup to 
start making changes to dmd.

https://youtu.be/iLN4rQkk4Fs

The plan is to publish a new tutorial in the series every two 
weeks, so you can look for the next tutorial on January 22.

Thanks to Dennis for offering to put these videos together. Even 
a short video like this one takes a significant time investment 
to go from concept to publication. I'm certain there are people 
out there who will find them beneficial.
Jan 08 2023
next sibling parent Salih Dincer <salihdb hotmail.com> writes:
On Sunday, 8 January 2023 at 11:27:14 UTC, Mike Parker wrote:

 The next video will use this setup to start making changes to 
 dmd.

 https://youtu.be/iLN4rQkk4Fs


Thank you to everyone who contributed to presenting this series 
to us, especially to Dennis!

Hope to see more videos like this...

SDB 79
Jan 08 2023
prev sibling next sibling parent Mike Shah <mshah.475 gmail.com> writes:
On Sunday, 8 January 2023 at 11:27:14 UTC, Mike Parker wrote:

 Have you ever considered hacking on the D compiler but were 
 intimidated by the build process? Dennis Korpel has been 
 working on a series of video tutorials aimed at helping 
 potential contributors establish a foundation from which to 
 start contributing code.

 [...]


This is fantastic! I like seeing these videos organized into a 
playlist as well -- I think this will be very important to 
bringing new contributors to D!
Jan 08 2023
prev sibling next sibling parent jmh530 <john.michael.hall gmail.com> writes:
On Sunday, 8 January 2023 at 11:27:14 UTC, Mike Parker wrote:

 [snip]
 Thanks to Dennis for offering to put these videos together. 
 Even a short video like this one takes a significant time 
 investment to go from concept to publication. I'm certain there 
 are people out there who will find them beneficial.


Thanks.
Jan 08 2023
prev sibling next sibling parent reply ryuukk_ <ryuukk.dev gmail.com> writes:
On Sunday, 8 January 2023 at 11:27:14 UTC, Mike Parker wrote:

 Have you ever considered hacking on the D compiler but were 
 intimidated by the build process? Dennis Korpel has been 
 working on a series of video tutorials aimed at helping 
 potential contributors establish a foundation from which to 
 start contributing code.

 In this first tutorial of the series, he gives an overview of 
 what happens when compiling a D source file, then shows how to 
 set up an environment from which to build dmd and the standard 
 library/runtime binary. The next video will use this setup to 
 start making changes to dmd.

 https://youtu.be/iLN4rQkk4Fs

 The plan is to publish a new tutorial in the series every two 
 weeks, so you can look for the next tutorial on January 22.

 Thanks to Dennis for offering to put these videos together. 
 Even a short video like this one takes a significant time 
 investment to go from concept to publication. I'm certain there 
 are people out there who will find them beneficial.


Last time i tried to build DMD to finish a PR i had was a 
miserable expenrience that i decided to give up 
https://github.com/dlang/dmd/pull/14418

The Wiki is outdated and mentions tools that do not exist 
https://wiki.dlang.org/Building_under_Windows

I updated it with the little information i had but that still 
wasn't enough to be able to build the whole thing

I even asked on the forum for some help, wich was met with 
silence 
https://forum.dlang.org/thread/aapqglgpugyuimhofxiq forum.dlang.org?page=1

While this video definitely help, but i'm not going to rewind to 
find information on a 7minutes video, it should be a simple 
document, with a set of simple scripts and they should put 
accessible under the DMD repo

It shouldn't be that convoluted
Jan 08 2023
next sibling parent Nick Treleaven <nick geany.org> writes:
On Sunday, 8 January 2023 at 19:28:59 UTC, ryuukk_ wrote:

 The Wiki is outdated and mentions tools that do not exist 
 https://wiki.dlang.org/Building_under_Windows


I haven't been able to build druntime on Windows. I have just 
updated the page to make it clear that DM make is needed even 
when not using Visual Studio. Which tools does it mention that 
don't exist?


 I updated it with the little information i had but that still 
 wasn't enough to be able to build the whole thing

 I even asked on the forum for some help, wich was met with 
 silence 
 https://forum.dlang.org/thread/aapqglgpugyuimhofxiq forum.dlang.org?page=1


Well some people replied, but it didn't really help.
Jan 22 2023
prev sibling parent zjh <fqbqrr 163.com> writes:
On Sunday, 8 January 2023 at 19:28:59 UTC, ryuukk_ wrote:


 While this video definitely help, but i'm not going to rewind 
 to find information on a 7minutes video, it should be a simple 
 document, with a set of simple scripts and they should put 
 accessible under the DMD repo

 It shouldn't be that convoluted



Yes, the document is better. Although it takes more time to 
produce, it saves users' time, which is worthwhile for D ecology
.
Jan 22 2023
prev sibling next sibling parent matheus <matheus gmail.com> writes:
On Sunday, 8 January 2023 at 11:27:14 UTC, Mike Parker wrote:

 ...


Awesome and I'm looking forward to see some debugging in these 
series.

Matheus.
Jan 08 2023
prev sibling parent reply Nick Treleaven <nick geany.org> writes:
On Sunday, 8 January 2023 at 11:27:14 UTC, Mike Parker wrote:

 In this first tutorial of the series, he gives an overview of 
 what happens when compiling a D source file, then shows how to 
 set up an environment from which to build dmd and the standard 
 library/runtime binary. The next video will use this setup to 
 start making changes to dmd.


Thanks, this is great (for posix builds).

However I'm not sure the Windows instructions in the video are 
correct. It is good Dennis mentioned to use DM make as the wiki 
only mentioned that for the VS build instructions (I have updated 
it to make it clear).

I tried running `make -f win32.mak` from the phobos root and got 
this:
```
Error: don't know how to make '../dmd/druntime/lib/druntime.lib'
```
So it seems on Windows druntime still does have to be built 
before that (unlike on Linux). So I ran `make -f win32.mak` from 
dmd/druntime and got this error:

```
..\compiler\..\generated\windows\release\32\dmd -c 
-of=errno_c_32omf.obj -m32omf -conf= -O -release -preview=dip1000 
-preview=fieldwise -preview=dtorfields -inline -w -Isrc -Iimport 
-v -P=-I. src\core\stdc\errno.c
predefs   DigitalMars LittleEndian D_Version2 all Windows Win32 
CRuntime_DigitalMars CppRuntime_DigitalMars D_InlineAsm 
D_InlineAsm_X86 X86 D_ModuleInfo D_Exceptions D_TypeInfo 
D_HardFloat D_Optimized
binary    ..\compiler\..\generated\windows\release\32\dmd.exe
version   v2.101.0-rc.1-72-g5c3dafa06f
config
DFLAGS    (none)
include   src\importc.h
sppn.exe src\core\stdc\errno.c -HIsrc\importc.h -ED -oerrno.i -I.
Error: C preprocess command sppn.exe failed for file 
src\core\stdc\errno.c, exit status 1

failed launching sppn.exe src\core\stdc\errno.c -HIsrc\importc.h 
-ED -oerrno.i -I.
```

I don't know what `sppn.exe` is.

---
Before trying phobos win32.mak I also tried the win64.mak but it 
needs `cl.exe` which apparently I can get here:
https://ftp.digitalmars.com/bup.zip

But chrome says 'Your connection is not private' and won't let me 
download that even if I look under Advanced. I also tried curl:
```
curl: (60) SSL: no alternative certificate subject name matches 
target host name 'ftp.digitalmars.com'
More details here: https://curl.se/docs/sslcerts.html

curl failed to verify the legitimacy of the server and therefore 
could not
establish a secure connection to it. To learn more about this 
situation and
how to fix it, please visit the web page mentioned above.
```
Jan 22 2023
parent Nick Treleaven <nick geany.org> writes:
On Sunday, 22 January 2023 at 12:51:53 UTC, Nick Treleaven wrote:

 sppn.exe src\core\stdc\errno.c -HIsrc\importc.h -ED -oerrno.i 
 -I.
 Error: C preprocess command sppn.exe failed for file 
 src\core\stdc\errno.c, exit status 1

 failed launching sppn.exe src\core\stdc\errno.c 
 -HIsrc\importc.h -ED -oerrno.i -I.


Turned out dmc wasn't correctly installed. I downloaded dmc.zip 
which fixed it.


 But chrome says 'Your connection is not private' and won't let 
 me download that even if I look under Advanced. I also tried 
 curl:
 ```
 curl: (60) SSL: no alternative certificate subject name matches 
 target host name 'ftp.digitalmars.com'


Fixed by updating & using Firefox.
Jan 23 2023