[Bug ada/56909] [4.8 regression] s-atopri.adb:multiple undefined references on mingw32

["mail2arthur at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56909

--- Comment #16 from Arthur Zhang <mail2arthur at gmail dot com> 2013-04-18 14:48:50 UTC ---
(In reply to comment #15)
> > Why below output has '-march=pentiumpro'?
> 
> I think it's the autodetected arch, but maybe I'm confused.  Never mind.

If you mean autodetected arch of the running PC (which has i7 CPU), then I
think it is not, since for gcc v4.7.2 (which is built with only
--build=mingw32):

sh-3.1$ gcc -v -o t.exe test.c
Using built-in specs.
COLLECT_GCC=c:\MinGW\bin\gcc.exe
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.7.2/lto-wrapper.exe
Target: mingw32
Configured with: ../gcc-4.7.2/configure
--enable-languages=c,c++,ada,fortran,obj
c,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared
--enable-libgo
mp --disable-win32-registry --enable-libstdcxx-debug
--disable-build-poststage1-
with-cxx --enable-version-specific-runtime-libs --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.7.2 (GCC)
COLLECT_GCC_OPTIONS='-v' '-o' 't.exe' '-mtune=i386' '-march=i386'
...