Comment #0 by timothee.cour2 — 2017-12-07T22:16:21Z
on OSX, dmd -unittest doesn't work when linking against a shared library (but works when linking against a static library): even though main2.d was compiled with -unittest, main2's unittest isn't called.
dmd --version
DMD64 D Compiler v2.077.0
dmd -of=build//libfoo.dylib -shared -unittest foo.d
dmd -unittest -ofbuild/./main -L-lfoo -L-Lbuild/ main2.d foo.d
build/./main
u:foo
rm build//libfoo.dylib
dmd -of=build//libfoo.a -lib -unittest foo.d
dmd -unittest -ofbuild/./main -L-lfoo -L-Lbuild/ main2.d foo.d
build/./main
u:main2
u:foo
#####
./main2.d:
module main2;
import std.stdio;
import foo;
void main(){}
unittest{
import std.stdio;
writeln("u:main2");
}
./foo.d:
module foo;
void fun(){}
unittest{
import std.stdio;
writeln("u:foo");
}
Comment #1 by timothee.cour2 — 2017-12-09T00:30:21Z
same with ldmd2:
ldmd2 -of=build//libfoo.dylib -shared -unittest foo.d
ldmd2 -unittest -ofbuild/./main -L-lfoo -L-Lbuild/ main2.d foo.d
build/./main
ldmd2 --version
LDC - the LLVM D compiler (1.6.0):
based on DMD v2.076.1 and LLVM 5.0.0
built with LDC - the LLVM D compiler (0.17.5)
Comment #2 by code — 2017-12-09T01:51:51Z
(In reply to Timothee Cour from comment #1)
> same with ldmd2:
>
> ldmd2 -of=build//libfoo.dylib -shared -unittest foo.d
> ldmd2 -unittest -ofbuild/./main -L-lfoo -L-Lbuild/ main2.d foo.d
> build/./main
>
> ldmd2 --version
> LDC - the LLVM D compiler (1.6.0):
> based on DMD v2.076.1 and LLVM 5.0.0
> built with LDC - the LLVM D compiler (0.17.5)
This only occurs when not linking against the shared runtime (druntime/Phobos), which is a prerequisite for using shared libraries in user code.
Note also that you are compiling foo.d twice, which will be (correctly) rejected by LDC on startup. (The module collision check has been removed in druntime master, so you won't be protected against this mistake in the future, but it's still not what you want.)
After fixing that, LDC gives
u:foo
u:main2
as expected.
Comment #3 by robert.schadek — 2024-12-13T18:55:18Z