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 |