+# Temporarily turn off -Werror for some Hoopl modules that have
+# non-exhaustive pattern-match warnings
+libraries/hoopl/src/Compiler/Hoopl/Util_HC_OPTS += -Wwarn
+libraries/hoopl/src/Compiler/Hoopl/GraphUtil_HC_OPTS += -Wwarn
+libraries/hoopl/src/Compiler/Hoopl/MkGraph_HC_OPTS += -Wwarn
+libraries/hoopl/src/Compiler/Hoopl/XUtil_HC_OPTS += -Wwarn
+libraries/hoopl/src/Compiler/Hoopl/Pointed_HC_OPTS += -Wwarn
+libraries/hoopl/src/Compiler/Hoopl/Passes/Dominator_HC_OPTS += -Wwarn
+