Issue with building the example #80

Bogfoot · 2023-02-13T10:00:41Z

Bogfoot
Feb 13, 2023

So I just installed Zork for ubuntu by following the guide, everything seems to have been installed ok as in I didn't receive any warnings or errors during installation. Quickly wanted to test out Zork by using the example given in the readme.

zork new TestZork --compiler clang

Generates the files described in the readme:

.
├── deps
├── ifc
│   ├── interface_partition.cppm
│   ├── internal_partition.cpp
│   ├── math.cppm
│   └── partitions.cppm
├── main.cpp
├── src
│   ├── math2.cpp
│   └── math.cpp
├── test
└── zork_clang.toml

running zork build results in this error message and file tree:

[2023-02-13T09:44:13.082Z INFO  zork] Launching a new Zork++ program
[2023-02-13T09:44:13.082Z INFO  zork::compiler] Building the module interfaces and partitions...
[2023-02-13T09:44:13.082Z INFO  zork::compiler] Building the module implementations...
[2023-02-13T09:44:13.082Z INFO  zork::compiler::sources] Generating the main command line...
./main.cpp:4:8: fatal error: module 'std' not found
import std;
~~~~~~~^~~
1 error generated.
[2023-02-13T09:44:13.211Z INFO  zork] [SUCCESS] - The process ended succesfully**, taking a total time in* complete of*: 129 ms

Grammarly notified me of some grammar and spelling mistakes so here they are!
* Should be "taking a total time of SSS ms to complete" or "taking a total time to complete of: SSS ms".
**There's a typo in "succesfully", it's written "successfully" :)

.
├── deps
├── ifc
│   ├── interface_partition.cppm
│   ├── internal_partition.cpp
│   ├── math.cppm
│   └── partitions.cppm
├── main.cpp
├── out
│   ├── clang
│   │   └── modules
│   │       ├── implementations
│   │       │   ├── math2.o
│   │       │   └── math.o
│   │       └── interfaces
│   │           └── math.pcm
│   └── zork
│       ├── cache
│       │   └── clang
│       │       └── cache.json
│       └── intrinsics
├── src
│   ├── math2.cpp
│   └── math.cpp
├── test
└── zork_clang.toml

What am I doing wrong here? I have to say that I have not used C++ modules yet so sorry if I'm just making a beginner mistake!

P.S. In the zork.toml file there seems to be a problem with how the [executable], [tests], and [modules] sections are configured out of the box: They are prefixed with "./PROJECT_NAME" (eg. "./TestZork/*.cpp in the [executable] section). On Linux this leads to an error such paths do not exist from the location where one would normally build the project (as in from the actual project folder - in this case thw "TestZork" folder).
P.P.S. Thank you for your time!

Answered by TheRustifyer

Feb 22, 2023

Hey there! Vacations are such a good thing, I hope you enjoyed them!

I've noticed that you are using now Clang 17. That's good, but a couple of things:
In order to use the import syntax, you need first to precompile the system header into a prebuilt module unit. With Clang 17, you should use againt theimport stdway, because I hope that their module maps are working correctly in your installation. Since you are using a Unix system, by linking againstlibc++` everything should be running fine now.

Try with the import syntax, and share your feedback.

Thanks again!

View full answer

TheRustifyer · 2023-02-13T14:48:00Z

TheRustifyer
Feb 13, 2023
Maintainer

Hi there! First of all, thanks for your detailed review, and for spotting the grammar errors. We will fix them! :)

Going to the issue. First, whenever you find an error like this, try to use the -v command line flag, so you will have more detailed logs about what's going on. For example:

$ zork++ -v run

Another thing is Clang. As you know, every compiler can behave slightly different between minor revisions. The import std; statement, the one which is causing your issue, is typically for having an uncomplete Clang installation, or a version that still does not support the std mapping.

Could you please share with us your Clang installed version?

Another option. For use import std; in Unix systems, Clang must link against libc++. This is configurable from the Zork++ config file.

I generated a fresh project, and this is the config file:

#This file it's autogenerated as an example of a Zork config file
[project]
name = "TestZork"
authors = [ "Zero Day Code" ]  # Replace this for the real authors

[compiler]
cpp_compiler = "clang"
cpp_standard = "20"
std_lib = "libc++"  # This concrete property will only be applied to Clang

[build]
output_dir = "./out"

[executable]
executable_name = "TestZork"
sources = [
    "./TestZork/*.cpp"
]
auto_execute = true

[tests]
tests_executable_name = "zork_proj_tests"
sources = [
    "./TestZork/*.cpp"
]

[modules]
base_ifcs_dir = "./TestZork/ifc"
interfaces = [ 
    { file = 'math.cppm'}  
]
base_impls_dir = "./TestZork/src"
implementations = [
    { file = 'math.cpp' },
    { file = 'math2.cpp', dependencies = ['math'] }
]
sys_modules = ['iostream']

Question: Did you build the program from source, used the tar.gz or the .deb package?
It seems strange to me, because your autogenerated project is using the zork_example.toml config file, instead the zork_example_basic, and it looks like you aren't using the latest release, or that we messed up something with the Unix binaries!

Please, let us know the answer to those questions, and we will investigate further your issue.

Thanks in advance for your time.

4 replies

Bogfoot Feb 14, 2023
Author

Hello! Sorry about the late reply and thank you for your quick reply!

This is the result of zork -v build:

[2023-02-14T10:14:06.515Z INFO  zork] Launching a new Zork++ program
[2023-02-14T10:14:06.515Z DEBUG zork::utils::reader] Searching for Zork++ configuration files...
[2023-02-14T10:14:06.515Z DEBUG zork::utils::reader] Config file found!: "zork_clang.toml"
[2023-02-14T10:14:06.515Z DEBUG zork::worker] Config files found: [ConfigFile { dir_entry: DirEntry("./zork_clang.toml"), path: "./zork_clang.toml" }]
[2023-02-14T10:14:06.515Z DEBUG zork::worker] Launching a Zork++ work event for the configuration file: "zork_clang.toml", located at: "./zork_clang.toml"

[2023-02-14T10:14:06.515Z INFO  zork::compiler] Building the module interfaces and partitions...
[2023-02-14T10:14:06.515Z INFO  zork::compiler] Building the module implementations...
[2023-02-14T10:14:06.515Z INFO  zork::compiler::sources] Generating the main command line...
[2023-02-14T10:14:06.515Z DEBUG zork::cli::output::commands] Executing the commands for the module interfaces...
[2023-02-14T10:14:06.515Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -x c++-module --precompile -fimplicit-module-maps -fprebuilt-module-path=./out/clang/modules/interfaces -o ./out/clang/modules/interfaces/math.pcm ./ifc/math.cppm"
[2023-02-14T10:14:06.536Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:14:06.536Z DEBUG zork::cli::output::commands] Executing the commands for the module implementations...
[2023-02-14T10:14:06.536Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -c -fimplicit-module-maps -o ./out/clang/modules/implementations/math.o -fmodule-file=./out/clang/modules/interfaces/math.pcm ./src/math.cpp"
[2023-02-14T10:14:06.559Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:14:06.559Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -c -fimplicit-module-maps -o ./out/clang/modules/implementations/math2.o -fmodule-file=./out/clang/modules/interfaces/math.pcm ./src/math2.cpp"
[2023-02-14T10:14:06.581Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:14:06.581Z DEBUG zork::cli::output::commands] Executing the main command line...
[2023-02-14T10:14:06.581Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -fimplicit-module-maps -fprebuilt-module-path=./out/clang/modules/interfaces -o ./out/clang/TestZork ./out/clang/modules/interfaces/math.pcm ./out/clang/modules/implementations/math.o ./out/clang/modules/implementations/math2.o ./main.cpp"
./main.cpp:5:12: fatal error: module 'std' not found
    import std;
    ~~~~~~~^~~
1 error generated.
[2023-02-14T10:14:06.640Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(256))

[2023-02-14T10:14:06.641Z INFO  zork] [SUCCESS] - The process ended successfully, taking a total time in complete of: 126 ms

And this is the information clang gives with clang --version:

Ubuntu clang version 15.0.6
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

To install zork I used the latest "*.deb" version available to get a quick start! This one.
Again, sorry for the late reply!

Bogfoot Feb 14, 2023
Author

Also, I forgot to mention this but everything works well with GCC!

[2023-02-14T10:29:01.464Z INFO  zork] Launching a new Zork++ program
[2023-02-14T10:29:01.464Z DEBUG zork::utils::reader] Searching for Zork++ configuration files...
[2023-02-14T10:29:01.464Z DEBUG zork::utils::reader] Config file found!: "zork_gcc.toml"
[2023-02-14T10:29:01.464Z DEBUG zork::worker] Config files found: [ConfigFile { dir_entry: DirEntry("./zork_gcc.toml"), path: "./zork_gcc.toml" }]
[2023-02-14T10:29:01.464Z DEBUG zork::worker] Launching a Zork++ work event for the configuration file: "zork_gcc.toml", located at: "./zork_gcc.toml"

[2023-02-14T10:29:01.464Z INFO  zork::compiler::helpers] GCC system modules already build: ["iostream"]. They will be skipped!
[2023-02-14T10:29:01.464Z INFO  zork::compiler] Building the module interfaces and partitions...
[2023-02-14T10:29:01.464Z INFO  zork::compiler] Building the module implementations...
[2023-02-14T10:29:01.464Z INFO  zork::compiler::sources] Generating the main command line...
[2023-02-14T10:29:01.464Z DEBUG zork::cli::output::commands] Executing the commands for the module interfaces...
[2023-02-14T10:29:01.464Z DEBUG zork::cli::output::commands] [gcc] - Executing command => "g++ -std=c++20 -fmodules-ts -x c++ -c ./ifc/math.cc -o ./out/gcc/modules/interfaces/math.o"
[2023-02-14T10:29:01.478Z DEBUG zork::cli::output::commands] [gcc] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:29:01.478Z DEBUG zork::cli::output::commands] Executing the commands for the module implementations...
[2023-02-14T10:29:01.478Z DEBUG zork::cli::output::commands] [gcc] - Executing command => "g++ -std=c++20 -fmodules-ts -c ./src/math.cpp -o ./out/gcc/modules/implementations/math.o"
[2023-02-14T10:29:01.492Z DEBUG zork::cli::output::commands] [gcc] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:29:01.492Z DEBUG zork::cli::output::commands] [gcc] - Executing command => "g++ -std=c++20 -fmodules-ts -c ./src/math2.cpp -o ./out/gcc/modules/implementations/math2.o"
[2023-02-14T10:29:01.506Z DEBUG zork::cli::output::commands] [gcc] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:29:01.506Z DEBUG zork::cli::output::commands] Executing the main command line...
[2023-02-14T10:29:01.506Z DEBUG zork::cli::output::commands] [gcc] - Executing command => "g++ -std=c++20 -fmodules-ts -o ./out/gcc/TestZork ./out/gcc/modules/interfaces/math.o ./out/gcc/modules/implementations/math.o ./out/gcc/modules/implementations/math2.o ./main.cpp"
[2023-02-14T10:29:01.625Z DEBUG zork::cli::output::commands] [gcc] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T10:29:01.625Z INFO  zork::cli::output::commands] [gcc] - Executing the generated binary => "./out/gcc/TestZork"

Hello from an autogenerated Zork project!
The program is running with: GCC

RESULT '+': 10
RESULT '-': 6
RESULT '*': 16
RESULT '/': 1

[2023-02-14T10:29:01.627Z INFO  zork] [SUCCESS] - The process ended successfully, taking a total time in complete of: 163 ms

TheRustifyer Feb 14, 2023
Maintainer

I am noticing a couple of strange things. FIrst of all, I am missing the -fprebuild-module-path in the module declaration and implementation generated command lines. This doesn't affect your main issue, but seems strange, like the .deb package is from latest commits before the real first release...

But for me, the strangest thing is that the import std; should be reachable by having -fimplicit-modules and -fimplicit-module-maps, and they are present!

I propose you once thing. Module interfaces and implementations looks fine. So, in your Zork++ working directory, launch the main command line argument by copy-pasting it into the terminal.
Then, try to remove the -fprebuilt-module-path cmd arg, and see what happens.

We could change your import to use GCC one (import ), but precompilation system modules isn't available on Clang on this release, so we will open an issue to track this (as should be included).

Btw, the more important thing is that import std; must be working with libc++, which is also present in the command line...

Well, try to figure out more errors by manually play with the "main" command line as said above, and share us your results. Let's see what happens.

Thanks again!

Bogfoot Feb 14, 2023
Author

Running clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -fimplicit-module-maps -o ./out/clang/TestZork ./out/clang/modules/interfaces/math.pcm ./out/clang/modules/implementations/math.o ./out/clang/modules/implementations/math2.o ./main.cpp returns this:

./main.cpp:5:12: fatal error: module 'std' not found
    import std;
    ~~~~~~~^~~
1 error generated.

If you have any other suggestions, I'm open to them! In the meanwhile, I'll stick to the GCC version for personal projects!

TheRustifyer · 2023-02-14T19:33:54Z

TheRustifyer
Feb 14, 2023
Maintainer

Mmm... still seems weird to me.

This is my output on a Manjaro for `$ clang++ -v:

clang version 15.0.7
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-pc-linux-gnu/12.2.1
Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1
Selected GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/12.2.1
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64

Post me please your clang++ -v output.

Even tho, seems like there's something strange with the Clang module maps feature inside your installation.

I will try to upgrade GCC first of all, and then reinstall Clang with your apt manager.

Next, if the issue still persists, try to change the macro inside main to this:

const char* compiler =
#if defined(__clang__)
    "Clang";
    import <iostream>;
#elif (defined(__GNUC__) || defined(__GNUG__)) && !defined(__clang__)
    "GCC";
    import <iostream>;
#elif defined
    "MSVC";
    import std.core;
#endif

As you may see, Clang is using import <iostream>; now, which is the automatic translation from the #include directive, and let's see what happens with their module maps

5 replies

Bogfoot Feb 14, 2023
Author

Clang++ -v result:

Ubuntu clang version 15.0.6
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64

And the result from changing the macros in main.cpp and running zork -v build is this:

[2023-02-14T19:38:20.748Z INFO  zork] Launching a new Zork++ program
[2023-02-14T19:38:20.748Z DEBUG zork::utils::reader] Searching for Zork++ configuration files...
[2023-02-14T19:38:20.748Z DEBUG zork::utils::reader] Config file found!: "zork_clang.toml"
[2023-02-14T19:38:20.748Z DEBUG zork::worker] Config files found: [ConfigFile { dir_entry: DirEntry("./zork_clang.toml"), path: "./zork_clang.toml" }]
[2023-02-14T19:38:20.748Z DEBUG zork::worker] Launching a Zork++ work event for the configuration file: "zork_clang.toml", located at: "./zork_clang.toml"

[2023-02-14T19:38:20.748Z INFO  zork::compiler] Building the module interfaces and partitions...
[2023-02-14T19:38:20.748Z INFO  zork::compiler] Building the module implementations...
[2023-02-14T19:38:20.748Z INFO  zork::compiler::sources] Generating the main command line...
[2023-02-14T19:38:20.748Z DEBUG zork::cli::output::commands] Executing the commands for the module interfaces...
[2023-02-14T19:38:20.748Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -x c++-module --precompile -fimplicit-module-maps -fprebuilt-module-path=./out/clang/modules/interfaces -o ./out/clang/modules/interfaces/math.pcm ./ifc/math.cppm"
[2023-02-14T19:38:20.769Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T19:38:20.769Z DEBUG zork::cli::output::commands] Executing the commands for the module implementations...
[2023-02-14T19:38:20.769Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -c -fimplicit-module-maps -o ./out/clang/modules/implementations/math.o -fmodule-file=./out/clang/modules/interfaces/math.pcm ./src/math.cpp"
[2023-02-14T19:38:20.792Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T19:38:20.792Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -c -fimplicit-module-maps -o ./out/clang/modules/implementations/math2.o -fmodule-file=./out/clang/modules/interfaces/math.pcm ./src/math2.cpp"
[2023-02-14T19:38:20.815Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-14T19:38:20.815Z DEBUG zork::cli::output::commands] Executing the main command line...
[2023-02-14T19:38:20.815Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -fimplicit-module-maps -fprebuilt-module-path=./out/clang/modules/interfaces -o ./out/clang/TTT ./out/clang/modules/interfaces/math.pcm ./out/clang/modules/implementations/math.o ./out/clang/modules/implementations/math2.o ./main.cpp"
./main.cpp:4:8: fatal error: 'iostream' file not found
import <iostream>;
       ^~~~~~~~~~
1 error generated.
[2023-02-14T19:38:20.875Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(256))

[2023-02-14T19:38:20.876Z INFO  zork] [SUCCESS] - The process ended succesfully, taking a total time in complete of: 127 ms

Still pretty much the same issue I think.
I've also run just the clang++ command for the main.cpp file while omitting the -fprebuild-module-path part and the result is the same:

./main.cpp:4:8: fatal error: 'iostream' file not found
import <iostream>;
       ^~~~~~~~~~
1 error generated.

TheRustifyer Feb 14, 2023
Maintainer

Then it has to be an issue with some system installed component of Clang. I will try to delete your current installation and reinstall it with apt. If that doesn't work, I will still try to remove again the installation, and install Clang directly from the latest release available in GitHub

Bogfoot Feb 15, 2023
Author

I've uninstalled zork with sudo apt remove zork and then installed it again. Had the same issue. Uninstalled again and built it from source now. Tried to repeat all the steps mentioned above (-fprebuilt-module-path, changing the macro) and got the same issue as before with clang, gcc still works. Reinstalling clang also didn't help much unfortunately!

TheRustifyer Feb 15, 2023
Maintainer

Well, I was talking just about reinstall Clang, and if it doesn't works, install a newer version from their GitHub repo. Would you be able to do that in order to verify exactly if it's Clang?

Bogfoot Feb 20, 2023
Author

Sorry about the delay! Went on a vacation for a bit! I've followed the instructions from https://clang.llvm.org/get_started.html to build the latest version. Here are the results from all of the advice you have given so far.

The result from running clang++ -v:

clang version 17.0.0 (https://github.com/llvm/llvm-project.git da94a2b62a01ed49d4e97c0d21f95243217b1cae)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/bogfoot/src/llvm-project/build/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64
Found CUDA installation: /usr/local/cuda, version

And the result from running zork -v build in the same project configured for clang was:

[2023-02-20T11:12:19.589Z INFO  zork] Launching a new Zork++ program
[2023-02-20T11:12:19.589Z DEBUG zork::utils::reader] Searching for Zork++ configuration files...
[2023-02-20T11:12:19.589Z DEBUG zork::utils::reader] Config file found!: "zork_clang.toml"
[2023-02-20T11:12:19.589Z DEBUG zork::worker] Config files found: [ConfigFile { dir_entry: DirEntry("./zork_clang.toml"), path: "./zork_clang.toml" }]
[2023-02-20T11:12:19.589Z DEBUG zork::worker] Launching a Zork++ work event for the configuration file: "zork_clang.toml", located at: "./zork_clang.toml"

[2023-02-20T11:12:19.589Z INFO  zork::compiler] Building the module interfaces and partitions...
[2023-02-20T11:12:19.589Z INFO  zork::compiler] Building the module implementations...
[2023-02-20T11:12:19.589Z INFO  zork::compiler::sources] Generating the main command line...
[2023-02-20T11:12:19.589Z DEBUG zork::cli::output::commands] Executing the commands for the module interfaces...
[2023-02-20T11:12:19.589Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -x c++-module --precompile -fimplicit-module-maps -fprebuilt-module-path=./out/clang/modules/interfaces -o ./out/clang/modules/interfaces/math.pcm ./ifc/math.cppm"
[2023-02-20T11:12:19.607Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-20T11:12:19.607Z DEBUG zork::cli::output::commands] Executing the commands for the module implementations...
[2023-02-20T11:12:19.607Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -c -fimplicit-module-maps -o ./out/clang/modules/implementations/math.o -fmodule-file=./out/clang/modules/interfaces/math.pcm ./src/math.cpp"
[2023-02-20T11:12:19.627Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-20T11:12:19.627Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -c -fimplicit-module-maps -o ./out/clang/modules/implementations/math2.o -fmodule-file=./out/clang/modules/interfaces/math.pcm ./src/math2.cpp"
[2023-02-20T11:12:19.646Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(0))

[2023-02-20T11:12:19.646Z DEBUG zork::cli::output::commands] Executing the main command line...
[2023-02-20T11:12:19.646Z DEBUG zork::cli::output::commands] [clang] - Executing command => "clang++ -std=c++20 -stdlib=libc++ -fimplicit-modules -fimplicit-module-maps -fprebuilt-module-path=./out/clang/modules/interfaces -o ./out/clang/TTT ./out/clang/modules/interfaces/math.pcm ./out/clang/modules/implementations/math.o ./out/clang/modules/implementations/math2.o ./main.cpp"
./main.cpp:4:8: fatal error: 'iostream' file not found
import <iostream>;
       ^~~~~~~~~~
1 error generated.
[2023-02-20T11:12:19.693Z DEBUG zork::cli::output::commands] [clang] - Result: ExitStatus(unix_wait_status(256))

[2023-02-20T11:12:19.694Z INFO  zork] [SUCCESS] - The process ended succesfully, taking a total time in complete of: 104 ms

So basically the exact same error. The same goes for running "main" command without -fprebuilt-module-path and changing the macro.

TheRustifyer · 2023-02-22T10:00:06Z

TheRustifyer
Feb 22, 2023
Maintainer

Hey there! Vacations are such a good thing, I hope you enjoyed them!

I've noticed that you are using now Clang 17. That's good, but a couple of things:
In order to use the import syntax, you need first to precompile the system header into a prebuilt module unit. With Clang 17, you should use againt theimport stdway, because I hope that their module maps are working correctly in your installation. Since you are using a Unix system, by linking againstlibc++` everything should be running fine now.

Try with the import syntax, and share your feedback.

Thanks again!

1 reply

TheRustifyer Feb 27, 2023
Maintainer

Hello @Bogfoot finally we spotted the error.

This line in the autogenerated main.cpp file:

#if defined(__clang__)
    "Clang";
    import <iostream>;

was causing the issue. By default, Zork++ should be using the import std; for Clang, as in the latest release we were only supporting the import <system_module> for GCC. I remeber testing that import system module, so it's entirely my fault, just forget about it, and new projects are being autogenerated with the `import <system_module> syntax.

This will be fixed in the upcoming release, as well the addition of supporting the import <system_module> syntax also for Clang.

BTW, thanks for letting us know about the error, and for the amount of work that you did!

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