Add PatternGuards flag

[ghc-hetmet.git] / compiler / rename / RnBinds.lhs

diff --git a/compiler/rename/RnBinds.lhs b/compiler/rename/RnBinds.lhs
index 029f51c..ff0629a 100644 (file)
--- a/compiler/rename/RnBinds.lhs
+++ b/compiler/rename/RnBinds.lhs
@@ -596,11 +596,11 @@ rnGRHS :: HsMatchContext Name -> LGRHS RdrName -> RnM (LGRHS Name, FreeVars)
 rnGRHS ctxt = wrapLocFstM (rnGRHS' ctxt)
 
 rnGRHS' ctxt (GRHS guards rhs)
-  = do { opt_GlasgowExts <- doptM Opt_GlasgowExts
+  = do { pattern_guards_allowed <- doptM Opt_PatternGuards
        ; ((guards', rhs'), fvs) <- rnStmts (PatGuard ctxt) guards $
                                    rnLExpr rhs
 
-       ; checkM (opt_GlasgowExts || is_standard_guard guards')
+       ; checkM (pattern_guards_allowed || is_standard_guard guards')
                 (addWarn (nonStdGuardErr guards'))
 
        ; return (GRHS guards' rhs', fvs) }
@@ -653,6 +653,6 @@ bindsInHsBootFile mbinds
        2 (ppr mbinds)
 
 nonStdGuardErr guards
-  = hang (ptext SLIT("accepting non-standard pattern guards (-fglasgow-exts to suppress this message)"))
+  = hang (ptext SLIT("accepting non-standard pattern guards (use -XPatternGuards to suppress this message)"))
        4 (interpp'SP guards)
 \end{code}