http://bugs.winehq.org/show_bug.cgi?id=31501
--- Comment #1 from Artem S. Tashkinov t.artem@mailcity.com 2012-08-19 02:03:12 CDT --- That's what causes the increase:
configure.ac
+ WINE_TRY_CFLAGS([-gdwarf-2]) + WINE_TRY_CFLAGS([-gstrict-dwarf])
I wonder if users by default should have their binaries built with debugging enabled - most of them won't debug Wine and even without -gdwarf-2 GCC compiles in enough information to produce usable debugging information.