add '-' to the chars allowed in C header file names

[ghc-hetmet.git] / compiler / parser / RdrHsSyn.lhs

diff --git a/compiler/parser/RdrHsSyn.lhs b/compiler/parser/RdrHsSyn.lhs
index 92c7415..c785c22 100644 (file)
--- a/compiler/parser/RdrHsSyn.lhs
+++ b/compiler/parser/RdrHsSyn.lhs
@@ -1012,7 +1012,7 @@ parseCImport cconv safety nm str =
 
    mk = CImport cconv safety
 
-   hdr_char c = isAscii c && (isAlphaNum c || c `elem` "._")
+   hdr_char c = isAscii c && (isAlphaNum c || c `elem` "._-")
    id_char  c = isAlphaNum c || c == '_'
 
    cimp nm = (ReadP.char '&' >> skipSpaces >> CLabel <$> cid)