2010-04-27 Kai Tietz <kai.tietz@onevision.com>
* collect2.c (TARGET_64BIT): Redefine to target's default.
* tlink.c: Likewise.
* config/i386/cygming.h (USER_LABEL_PREFIX): Define
dependent to TARGET_64BIT and USE_MINGW64_LEADING_UNDERSCORES.
* config/i386/i386.h (CRT_CALL_STATIC_FUNCTION): Use
for underscoring __USER_LABEL_PREFIX__.
* config/i386/mingw-w64.h (SUB_LINK_ENTRY): New macro.
(SUB_LINK_ENTRY32): New.
(SUB_LINK_ENTRY64): New.
(LINK_SPEC): Replace entry point spec by
SUB_LINK_ENTRY.
* config/i386/mingw32 (SUB_LINK_ENTRY32): New.
(SUB_LINK_ENTRY64): New.
(SUB_LINK_ENTRY): New.
(LINK_SPEC): Use SUB_LINK_ENTRY instead of hard-coded entry-point.
(DWARF2_UNWIND_INFO): Error out for use of dw2 unwind when
x64 target is choosen.
* config.in (USE_MINGW64_LEADING_UNDERSCORES): New.
* configure: Regenerated.
* configure.ac (leading-mingw64-underscores): Option added.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@158791
138bc75d-0d04-0410-961f-
82ee72b054a4