Build error from following default nixos instructions and -Werror
When building the RTS with the nixos instructions from the wiki (https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Linux#NixNixOS) if you enable Werror then the build fails with warnings from the rts.
For example
rts/Interpreter.c: In function ‘interpretBCO’:
rts/Interpreter.c:593:41: error:
warning: ‘obj’ may be used uninitialized in this function [-Wmaybe-uninitialized]
debugBelch("Returning: "); printObj(obj);Is this something I should worry about? Are there additional flags that I should pass to gcc in order to turn these warnings off?
The workaround is compile without -Werror and then turn it on once the rts has been compiled.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | lowest |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
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| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |