Files
Nim/compiler/nim.cfg
ringabout ee2b480da6 makes DuplicateModuleImport back to an error (#25178)
fixes #24998

Basically it retraces back to the situation before
https://github.com/nim-lang/Nim/pull/18366 and
https://github.com/nim-lang/Nim/pull/18362, i.e.

```nim
import fuzz/a
import fuzz/a
```

```nim
import fuzz/a
from buzz/a
```

```nim
import fuzz/a except nil
from fuzz/a import addInt
```

All of these cases are now flagged as invalid and triggers a
redefinition error, i.e., each module name importing is treated as
consistent as the symbol definition

kinda annoying for importing/exporting with `when conditions` though

ref https://github.com/nim-lang/Nim/issues/18762
https://github.com/nim-lang/Nim/issues/20907

```nim
from std/strutils import toLower
when not defined(js):
  from std/strutils import toUpper
```

(cherry picked from commit 87ee9c84cb)
2025-09-22 08:48:48 +02:00

68 lines
1.1 KiB
Nim

# Special configuration file for the Nim project
hint[XDeclaredButNotUsed]:off
define:booting
define:nimcore
define:nimPreviewSlimSystem
define:nimPreviewCstringConversion
define:nimPreviewProcConversion
define:nimPreviewRangeDefault
define:nimPreviewNonVarDestructor
define:nimPreviewCheckedClose
define:nimPreviewAsmSemSymbol
define:nimPreviewCStringComparisons
define:nimPreviewDuplicateModuleError
threads:off
#import:"$projectpath/testability"
@if windows:
cincludes: "$lib/wrappers/libffi/common"
@end
define:useStdoutAsStdmsg
@if nimHasStyleChecks:
styleCheck:error
@end
#define:useNodeIds
#gc:markAndSweep
@if nimHasWarningObservableStores:
warning[ObservableStores]:off
@end
@if nimHasWarningAsError:
warningAsError[GcUnsafe2]:on
@end
@if nimHasWarnUnnamedBreak:
warningAserror[UnnamedBreak]:on
@end
@if nimHasWarnBareExcept:
warning[BareExcept]:on
warningAserror[BareExcept]:on
@end
@if nimUseStrictDefs:
experimental:strictDefs
warningAsError[Uninit]:on
warningAsError[ProveInit]:on
@end
@if nimHasWarnStdPrefix:
warning[StdPrefix]:on
warningAsError[StdPrefix]:on
@end
@if nimHasVtables:
experimental:vtables
@end