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digitalmars.D.ldc - Want to write ldc2.conf

reply NonNull <non-null use.startmail.com> writes:
Where can I find how to add -Imydir and -Lmylib.lib to ldc2.conf 
to add to the existing configuration of ldc2?
Aug 03 2019
parent reply NonNull <non-null use.startmail.com> writes:
On Saturday, 3 August 2019 at 20:22:52 UTC, NonNull wrote:

 Where can I find how to add -Imydir and -Lmylib.lib to 
 ldc2.conf to add to the existing configuration of ldc2?


I looked here:

https://github.com/ldc-developers/ldc/blob/master/driver/config.d

because the comment in etc/ldc2.conf in the binary distribution 
of ldc2 I am using said to do that in a comment.

But this just gives me a grammar without any semantics.

I looked here:
https://wiki.dlang.org/Using_LDC
and it tells you where to put lcd2.conf if you write your own.

This seems to suggest that only one such file will be read, the 
first found in the search order. But it doesn't tell you how to 
write such a file.

I can edit a copy of the existing file and put it earlier in the 
search order. But that doesn't tell me what all the possibilities 
are.

Where is the documentation?
Aug 03 2019
parent reply NonNull <non-null use.startmail.com> writes:
OK, I tried editing a copy of the config file that came with.

In accordance with https://wiki.dlang.org/Using_LDC I put it in 
my Windows home directory.

I added a post switch to add an include directory and one to add 
a lib directory.

According to https://wiki.dlang.org/Using_LDC having my ldc2.conf 
in my Windows home directory should be found before the default 
in etc/ alongside the directory that lcd2.exe is in.

Yet my ldc2.conf file is not being read: nothing different 
happens when I compile. It complains with a single location for 
import path when I have two such.

So it seems that https://wiki.dlang.org/Using_LDC is not correct.

Now what?

Please give me some working directions for where to put ldc2.conf 
NOT inside my ldc2 distribution.
Aug 03 2019
parent reply NonNull <non-null use.startmail.com> writes:
On Saturday, 3 August 2019 at 21:58:11 UTC, NonNull wrote:

 OK, I tried editing a copy of the config file that came with.

 In accordance with https://wiki.dlang.org/Using_LDC I put it in 
 my Windows home directory.


As this didn't work, I put it next to the executable I was 
compiling. Now it compiled immediately with no extra -I or -L on 
the command line. So my lcd2.conf is correct.

So I followed https://wiki.dlang.org/Using_LDC again. It says 
that ~/.ldc is also searched before etc/ next to bin directory 
containing ldc2 executable.

So I made a .ldc/ directory in my Windows home directory and put 
my ldc2.conf there.

Also did not work.

Tried renaming to .ldc2/ also did not work.

I have exhausted the possibilities according to 
https://wiki.dlang.org/Using_LDC that do not involve modifying 
the binary installation I am using.

What is the answer?
Aug 03 2019
parent reply Boris Carvajal <boris2.9 gmail.com> writes:
On Saturday, 3 August 2019 at 22:18:41 UTC, NonNull wrote:

 On Saturday, 3 August 2019 at 21:58:11 UTC, NonNull wrote:
 So I made a .ldc/ directory in my Windows home directory and 
 put my ldc2.conf there.

 Also did not work.

 Tried renaming to .ldc2/ also did not work.

 I have exhausted the possibilities according to 
 https://wiki.dlang.org/Using_LDC that do not involve modifying 
 the binary installation I am using.

 What is the answer?


Try on %APPDATA% folder
Aug 03 2019
parent Nemanja Boric <dlang nemanjaboric.com> writes:
On Saturday, 3 August 2019 at 22:58:03 UTC, Boris Carvajal wrote:

 On Saturday, 3 August 2019 at 22:18:41 UTC, NonNull wrote:

 On Saturday, 3 August 2019 at 21:58:11 UTC, NonNull wrote:
 So I made a .ldc/ directory in my Windows home directory and 
 put my ldc2.conf there.

 Also did not work.

 Tried renaming to .ldc2/ also did not work.

 I have exhausted the possibilities according to 
 https://wiki.dlang.org/Using_LDC that do not involve modifying 
 the binary installation I am using.

 What is the answer?


 Try on %APPDATA% folder


Yes, that looks correct: 
https://github.com/ldc-developers/ldc/blob/984f30b8c4959173fe7d01bf8e1bcad116b7b36b/driver/configfile.cpp#L42-L49

     HRESULT res = SHGetFolderPathA(NULL, CSIDL_FLAG_CREATE | 
CSIDL_APPDATA, NULL,
                                    SHGFP_TYPE_CURRENT, buff);

The interesting bits about the load order can be found here: 
https://github.com/ldc-developers/ldc/blob/984f30b8c4959173fe7d01bf8e1bcad116b7b36b/driver/configfile.cpp#L94-L176
Aug 05 2019