Bug 23193 – druntime/win32.mak, win64.mak, posix.mak contain no instructions for how to build druntime

Various things I've tried do not work. `make -fwin32.mak import` for example, does not put core/stdc/* into the import directory.

For example, how do I set the bootstrap dmd compiler? What commands do I pass to make? What make.exe is run?

(In reply to Walter Bright from comment #0) > Various things I've tried do not work. > > `make -fwin32.mak import` > > for example, does not put core/stdc/* into the import directory. Build, or prep the import directory? Without any arguments should just do the right thing. The first recipe in that file I note is: target : import copy dll $(DRUNTIME)

(In reply to Walter Bright from comment #1) > For example, how do I set the bootstrap dmd compiler? > > What commands do I pass to make? > > What make.exe is run? where make.exe If you don't know your own toolchain, we're all doomed. :-)

What I do is make a git zip of the druntime repository, unzip it into a directory, and try to build it. This requires: 1. What compiler will be used to compile it? How do I set it? 2. What arguments need to be passed to the win32.mak? I.e. make -f win32.mak ???????? What are the targets that the user should use and what do they do? 3. There's a DMD and a HOST_DMD. ?????? 4. Which variables are the user supposed to set? 5. Which make program should be used? 6. Sadly, not a single variable is documented. Why is this so hard to explain? Same problems with win64.mak, which, ironically, is also used to build 32mscoff, I presume, though there are no instructions for that, either. I looked at the wiki page recommended by README.md for build instructions, http://wiki.dlang.org/Building_DMD which is epic in its complete uselessness.

Let's start with a `makefile` with the following contents: ----- HOST_DMD=e:\dmd2.092\windows\bin\dmd.exe all: make HOST_DMD=$(HOST_DMD) -f win32.mak clean: make HOST_DMD=$(HOST_DMD) -f win32.mak clean ----- Let's try it out: ----- make clean del lib\druntime.lib errno_c_32omf.obj Could Not Find C:\forks\druntime\lib\druntime.lib Could Not Find C:\forks\druntime\errno_c_32omf.obj rmdir /S /Q doc import The system cannot find the file specified. The system cannot find the file specified. ----- ok. Now let's try a build: ---- C:\forks\druntime>make make HOST_DMD=e:\dmd2.092\windows\bin\dmd.exe -f win32.mak "make" -f mak/WINDOWS import DMD="..\dmd\generated\windows\release\32\dmd" HOST_DMD="e:\dmd2.092\windows\bin\d md.exe" MODEL=32 IMPDIR="import" ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\barrier.di src\core\s ync\barrier.d ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\condition.di src\core \sync\condition.d ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\config.di src\core\sy nc\config.d ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\exception.di src\core \sync\exception.d ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\mutex.di src\core\syn c\mutex.d ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\rwmutex.di src\core\s ync\rwmutex.d ..\dmd\generated\windows\release\32\dmd -conf= -c -o- -Isrc -Iimport -Hfimport\core\sync\semaphore.di src\core \sync\semaphore.d "make" -f mak/WINDOWS copydir DMD="..\dmd\generated\windows\release\32\dmd" HOST_DMD="e:\dmd2.092\windows\bin\ dmd.exe" MODEL=32 IMPDIR="import" Target 'copydir' is up to date "make" -f mak/WINDOWS copy DMD="..\dmd\generated\windows\release\32\dmd" HOST_DMD="e:\dmd2.092\windows\bin\dmd .exe" MODEL=32 IMPDIR="import" if not exist generated md generated if not exist generated\windows md generated\windows if exist "../../release-build/dmd-2.079.0/windows/bin/dmd.exe" (echo @"../../release-build/dmd-2.079.0/windows /bin/dmd.exe" %* >generated\windows\host_dmd.bat) if not "" == "" ("\dmd2\Windows\bin\dmd.exe" --version >nul 2>&1 && echo @"\dmd2\Windows\bin\dmd.exe" %* >gen erated\windows\host_dmd.bat) if not "" == "" ("" --version >nul 2>&1 && echo @"" %* >generated\windows\host_dmd.bat) if not "e:\dmd2.092\windows\bin\dmd.exe" == "" ("e:\dmd2.092\windows\bin\dmd.exe" --version >nul 2>&1 && echo @"e:\dmd2.092\windows\bin\dmd.exe" %* >generated\windows\host_dmd.bat) generated\windows\host_dmd.bat -of=generated\windows\copyimports.exe -m32 mak\copyimports.d if not exist generated md generated if not exist generated\windows md generated\windows if exist "../../release-build/dmd-2.079.0/windows/bin/dmd.exe" (echo @"../../release-build/dmd-2.079.0/windows /bin/dmd.exe" %* >generated\windows\host_dmd.bat) Error: command line too long --- errorlevel 1 --- errorlevel 1 ---------- Well, that crashed and burned. As you can see, it only partly created the import directory (no import\core\stdc): --- C:\forks\druntime>dir import Volume in drive C has no label. Volume Serial Number is 6E3B-6D44 Directory of C:\forks\druntime\import 06/18/2022 11:52 PM <DIR> .. 06/18/2022 11:52 PM <DIR> core 06/18/2022 11:52 PM <DIR> . 0 File(s) 0 bytes 3 Dir(s) 209,004,240,896 bytes free C:\forks\druntime>dir import\core Volume in drive C has no label. Volume Serial Number is 6E3B-6D44 Directory of C:\forks\druntime\import\core 06/18/2022 11:52 PM <DIR> .. 06/18/2022 11:52 PM <DIR> . 06/18/2022 11:52 PM <DIR> sync 0 File(s) 0 bytes 3 Dir(s) 209,002,799,104 bytes free ---

(In reply to Walter Bright from comment #5) > if not exist generated md generated > if not exist generated\windows md generated\windows > if exist "../../release-build/dmd-2.079.0/windows/bin/dmd.exe" (echo > @"../../release-build/dmd-2.079.0/windows > /bin/dmd.exe" %* >generated\windows\host_dmd.bat) > Error: command line too long > > --- errorlevel 1 > > --- errorlevel 1 > ---------- So really, this is the problem. We've now so many files in druntime, that we've exceeded the command-line limit? https://github.com/dlang/druntime/pull/3026 Perhaps this copyimports.d helper should be adapted to just read/parse in `mak/COPY` directly and do the work, rather than us giving it the list of files. On a related note, I can't see why we still have generated .di headers in druntime, so opened https://github.com/dlang/druntime/pull/3850 to remove them, and converge everything into the `make copy` list. That'll avoid some of the confusion here regarding `make import` doing something different to what might be expected.

That can't be the problem, as whatever is building druntime for the test suite works. The problem is there are no instructions on how to successfully build druntime.

Every time I build druntime (on Linux/Mac, not Windows), I just do make -f posix.mak If you build Phobos, and you have your directory structure set up, phobos will build it for you. There exists this wiki page, I have no idea how up to date it is: https://wiki.dlang.org/Building_under_Windows#Building_D

(In reply to Walter Bright from comment #7) > That can't be the problem, as whatever is building druntime for the test > suite works. I doubt running the druntime unit-tests is dependent on all iles being copied to the import directory.

I still have no clue even what make program is required. The \dm\bin\make.exe does not work anymore with win64.mak. I'm tempted to just delete win64.mak and make a new one.

The missing make.exe program: https://issues.dlang.org/show_bug.cgi?id=21435

Many of these problems stem from using a different Digital Mars make.exe program. I've also added some documentation to win64.mak.