1GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
2# Local preconfigure fragment for sysdeps/x86_64
3
4test -n "$base_machine" || case "$machine" in
5x86_64)
6  base_machine=x86_64
7  # Check if we are building for x32.
8  AC_CACHE_CHECK(whether $CC compiles in -mx32 mode by default,
9		 libc_cv_x32, [dnl
10  AC_TRY_COMPILE(dnl
11[#ifndef __ILP32__
12# error not x32
13#endif], [], libc_cv_x32=yes, libc_cv_x32=no)])
14  if test $libc_cv_x32 = yes; then
15    machine=x86_64/x32
16  else
17    machine=x86_64/64
18  fi
19  ;;
20esac
21