Do not enable -XGenerics when building the optimized libs.

[ghc-hetmet.git] / mk / config.mk.in

diff --git a/mk/config.mk.in b/mk/config.mk.in
index 3749bce..d4a7cbe 100644 (file)
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -282,13 +282,8 @@ GhcThreaded = $(if $(findstring thr,$(GhcRTSWays)),YES,NO)
 #
 #      -O(2) is pretty desirable, otherwise no inlining of prelude
 #              things (incl "+") happens when compiling with this compiler
-#
-#      -XGenerics switches on generation of support code for 
-#              derivable type classes.  This is now off by default,
-#              but we switch it on for the libraries so that we generate
-#              the code in case someone importing wants it
 
-GhcLibHcOpts=-O2 -XGenerics
+GhcLibHcOpts=-O2
 
 # Strip local symbols from libraries?  This can make the libraries smaller,
 # but makes debugging somewhat more difficult.  Doesn't work with all ld's.