Exit with error on startup if using the wrong IWAD.

Having multiple binaries can cause some confusion - some users try to
run chocolate-doom with hexen.wad, thinking it is supported. Add a
startup check that makes sure the user is not trying to start the game
using the wrong IWAD file for the binary being run.

This fixes #382.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/hexen/h2_main.c b/src/hexen/h2_main.c
index a7c3dee3..76050802 100644
--- a/src/hexen/h2_main.c
+++ b/src/hexen/h2_main.c
@@ -304,6 +304,7 @@ void D_DoomMain(void)
     }
 
     D_AddFile(iwadfile);
+    W_CheckCorrectIWAD(hexen);
 
     HandleArgs();