glibc/nptl/sysdeps/x86_64/configure.in

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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/i386.
AC_CACHE_CHECK([for .cfi_personality and .cfi_lsda pseudo-ops],
libc_cv_asm_cfi_personality, [dnl
cat > conftest.s <<EOF
${libc_cv_dot_text}
foo:
.cfi_startproc
.cfi_personality 0, foo
.cfi_lsda 0, foo
.cfi_endproc
EOF
if AC_TRY_COMMAND(${CC-cc} $ASFLAGS -c conftest.s 1>&AS_MESSAGE_LOG_FD); then
libc_cv_asm_cfi_personality=yes
else
libc_cv_asm_cfi_personality=no
fi
rm -f conftest*
])
if test x"$libc_cv_asm_cfi_personality" != xyes; then
AC_MSG_ERROR([assembler too old, .cfi_personality support missing])
fi