undefined reference linker error with separate compillation #4
Description
zorael reported this on 2018-10-07T20:30:35Z
Transfered from https://issues.dlang.org/show_bug.cgi?id=19291
CC List
- razvan.nitu1305
Description
Manjaro/Arch x86_64, dmd v2.082.0, dub v1.11.0.
The code in the linkererror branch at https://github.com/zorael/kameloso/tree/linkererror compiles in normal mode but gives an undefined reference error when building with dub --build-mode=singleFile.
The error disappears and compilation succeeds if a local import inside a function (main) is moved up to module-level.
$ git clone https://github.com/zorael/kameloso -b linkererror
$ cd kameloso
$ dub build --build-mode=singleFile
/usr/bin/ld: .dub/build/application-debug-linux.posix-x86_64-dmd_2082-6DCE8163999240FCF02537A83F2B5667/main_4e3dbc0b.o: in function_Dmain': /home/zorael/src/kameloso/source/kameloso/main.d:10: undefined reference to_D8kameloso6logger14KamelosoLogger__T8tintImplVE3std12experimentalQCd4core8LogLeveli64ZQByMxFNbNdNiZAya'
--- main.d
import std.experimental.logger;
Logger logger;
void main()
{
import kameloso.logger; // <--
string infotint = (cast(KamelosoLogger)logger).infotint;
}
--- logger.d
module kameloso.logger;
import std.experimental.logger;
class KamelosoLogger : Logger
{
this(LogLevel lv)
{
super(lv);
}
private string tintImpl(LogLevel level)() const @property
{
return string.init;
}
alias infotint = tintImpl!(LogLevel.info);
}