patch 8.1.0743: giving error messages is not flexible
Problem: Giving error messages is not flexible.
Solution: Add semsg(). Change argument from "char_u *" to "char *", also
for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes
#3302) Also make emsg() accept a "char *" argument. Get rid of
an enormous number of type casts.
diff --git a/src/gui_beval.c b/src/gui_beval.c
index b3d8e6c..9af17a9 100644
--- a/src/gui_beval.c
+++ b/src/gui_beval.c
@@ -103,7 +103,7 @@
if (mesg != NULL && mesgCB != NULL)
{
- IEMSG(_("E232: Cannot create BalloonEval with both message and callback"));
+ iemsg(_("E232: Cannot create BalloonEval with both message and callback"));
return NULL;
}