| GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. | |
| # Local preconfigure fragment for sysdeps/x86_64 | |
| test -n "$base_machine" || case "$machine" in | |
| x86_64) | |
| base_machine=x86_64 | |
| # Check if we are building for x32. | |
| AC_CACHE_CHECK(whether $CC compiles in -mx32 mode by default, | |
| libc_cv_x32, [dnl | |
| AC_TRY_COMPILE(dnl | |
| [#ifndef __ILP32__ | |
| # error not x32 | |
| #endif], [], libc_cv_x32=yes, libc_cv_x32=no)]) | |
| if test $libc_cv_x32 = yes; then | |
| machine=x86_64/x32 | |
| else | |
| machine=x86_64/64 | |
| fi | |
| ;; | |
| esac |