| # This file is generated from configure.ac by Autoconf. DO NOT EDIT! |
| |
| if test "x$libc_cv_gcc___thread" != xyes; then |
| as_fn_error $? "compiler support for __thread is required" "$LINENO" 5 |
| fi |
| |
| if test "x${libc_cv_visibility_attribute}" != xyes || |
| test "x${libc_cv_broken_visibility_attribute}" != xno; then |
| as_fn_error $? "working compiler support for visibility attribute is required" "$LINENO" 5 |
| fi |
| |
| if test "x$libc_cv_asm_cfi_directives" != xyes; then |
| case "$base_machine" in |
| i386 | x86_64 | powerpc | s390) |
| as_fn_error $? "CFI directive support in assembler is required" "$LINENO" 5 ;; |
| *) ;; |
| esac |
| fi |
| |
| |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for forced unwind support" >&5 |
| $as_echo_n "checking for forced unwind support... " >&6; } |
| if ${libc_cv_forced_unwind+:} false; then : |
| $as_echo_n "(cached) " >&6 |
| else |
| cat confdefs.h - <<_ACEOF >conftest.$ac_ext |
| /* end confdefs.h. */ |
| #include <unwind.h> |
| int |
| main () |
| { |
| |
| struct _Unwind_Exception exc; |
| struct _Unwind_Context *context; |
| _Unwind_GetCFA (context) |
| ; |
| return 0; |
| } |
| _ACEOF |
| if ac_fn_c_try_compile "$LINENO"; then : |
| libc_cv_forced_unwind=yes |
| else |
| libc_cv_forced_unwind=no |
| fi |
| rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext |
| fi |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_forced_unwind" >&5 |
| $as_echo "$libc_cv_forced_unwind" >&6; } |
| if test $libc_cv_forced_unwind = yes; then |
| $as_echo "#define HAVE_FORCED_UNWIND 1" >>confdefs.h |
| |
| old_CFLAGS="$CFLAGS" |
| CFLAGS="$CFLAGS -Werror -fexceptions" |
| { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C cleanup handling" >&5 |
| $as_echo_n "checking for C cleanup handling... " >&6; } |
| if ${libc_cv_c_cleanup+:} false; then : |
| $as_echo_n "(cached) " >&6 |
| else |
| cat confdefs.h - <<_ACEOF >conftest.$ac_ext |
| /* end confdefs.h. */ |
| |
| extern void some_function (void); |
| void cl (void *a) { } |
| int |
| main () |
| { |
| |
| int a __attribute__ ((cleanup (cl))); |
| some_function () |
| ; |
| return 0; |
| } |
| _ACEOF |
| if ac_fn_c_try_compile "$LINENO"; then : |
| libc_cv_c_cleanup=yes |
| else |
| libc_cv_c_cleanup=no |
| fi |
| rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext |
| fi |
| { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_c_cleanup" >&5 |
| $as_echo "$libc_cv_c_cleanup" >&6; } |
| CFLAGS="$old_CFLAGS" |
| if test $libc_cv_c_cleanup = no; then |
| as_fn_error $? "the compiler must support C cleanup handling" "$LINENO" 5 |
| fi |
| else |
| as_fn_error $? "forced unwind support is required" "$LINENO" 5 |
| fi |
