[Bug target/70464] [arch64] create a self hosting compiler

[georg@schorsch-tech.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70464

--- Comment #12 from georg@schorsch-tech.de ---
I purged all temporary build data, added
"--with-sysroot=/opt/aarch64-none-linux-gnu" to the configure line and rebuild
again. The same error.

/usr/aarch64-none-linux-gnu/usr/include/bits/stdio2.h: In function 'void
GTM::gtm_verror(const char*, va_list)':
/usr/aarch64-none-linux-gnu/usr/include/bits/stdio2.h:124:1: error: inlining
failed in call to always_inline 'int vfprintf(FILE*, const char*,
__gnuc_va_list)': function body can be overwritten at link time
 vfprintf (FILE *__restrict __stream,
 ^
../../../gcc-5.3.0/libitm/util.cc:35:31: error: called from here
   vfprintf (stderr, fmt, list);
                               ^
Makefile:517: recipe for target 'util.lo' failed