Print better error message for reading External Core
authorTim Chevalier <chevalier@alum.wellesley.edu>
Sun, 17 Feb 2008 22:38:44 +0000 (22:38 +0000)
committerTim Chevalier <chevalier@alum.wellesley.edu>
Sun, 17 Feb 2008 22:38:44 +0000 (22:38 +0000)
commita28f108105065f926702dd03d737b60f298cfa3c
treee8947fb5e111e341910fd0ef9f28650c18d7609b
parentda3ab5cd1dfea1415e78404510e3acbff8759413
Print better error message for reading External Core

GHC panicked with a "Prelude.undefined" error message if you tried to
compile a .hcr file. Since support for reading ExternalCore simply does
not exist, I added an error message to say that.

Please merge to 6.8. Thanks.
compiler/main/HscMain.lhs