On 2014-04-02 at 09:14:28 +0200, Herbert Valerio Riedel wrote: [...]
| compiler/stage2/build/Lexer.hs:2426:41: | Couldn't match expected type ‘[Char]’ with actual type ‘Int#’ | In the first argument of ‘(>=)’, namely ‘offset’ | In the expression: (offset >= "0#")
FYI: I've found the cause, it's due to Clang's pre-processor: The line in question is new_s = if GTE(offset,0#) && EQ(check,ord_c) while the GET and EQ macros are defined as #if __GLASGOW_HASKELL__ > 706 #define GTE(n,m) (tagToEnum# (n >=# m)) #define EQ(n,m) (tagToEnum# (n ==# m)) #else #define GTE(n,m) (n >=# m) #define EQ(n,m) (n ==# m) #endif However, this is preprocessed into new_s = if (tagToEnum# (offset >="0#")) && (tagToEnum# (check =="ord_c")) meaning that Clang's CPP made use of the stringifying operator '#' to turn '0#' into '"0#"'