[Bug target/51523] LTO keeps unneeded functions (mingw32 target)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-14 
10:36:15 UTC ---
This looks more like a linker bug which doesn't seem to account for the
contents of the .exp file.  It works properly on linux targets with providing a
version script, -Wl,--version-script=t.map with t.map containing

FOO_1.0 {
global:
  foo;
  bar;
local:
  *;
};