+2018-10-08 John Baldwin <jhb@FreeBSD.org>
+
+ * Makefile.in (ALL_TARGET_OBS): Add riscv-fbsd-tdep.o.
+ (HFILES_NO_SRCDIR): Add riscv-fbsd-tdep.h.
+ (ALLDEPFILES): Add riscv-fbsd-tdep.c.
+ * NEWS: Mention new FreeBSD/riscv target.
+ * configure.tgt: Add riscv*-*-freebsd*.
+ * riscv-fbsd-tdep.c: New file.
+ * riscv-fbsd-tdep.h: New file.
+
+2018-10-08 John Baldwin <jhb@FreeBSD.org>
+
+ * regcache.h (struct regcache_map_entry): Note that this type can
+ be used with traditional frame caches.
+ * trad-frame.c (trad_frame_set_reg_regmap): New.
+ * trad-frame.h (trad_frame_set_reg_regmap): New.
+
+2018-10-08 Weimin Pan <weimin.pan@oracle.com>
+
+ PR c++/16841
+ * valops.c (get_virtual_base_offset): New function.
+ (value_struct_elt_for_reference): Use it to get virtual base offset
+ and add it in calculating class member address.
+
+2018-10-08 John Darrington <john@darrington.wattle.id.au>
+
+ * dwarf2read.c (dwarf2_cu) <producer_is_codewarrior>: New field.
+ (check_producer): Check if the producer is codewarrior.
+ (producer_is_codewarrior): New function.
+ (lnp_state_machine::record_line): Ignore is_stmt flag for records
+ produced by codewarrior.
+ (dwarf2_cu::dwarf2_cu): Initialize producer_is_codewarrior.
+
+2018-10-06 Tom Tromey <tom@tromey.com>
+
+ PR python/19399:
+ * python/py-inferior.c: Add "architecture" entry.
+ (infpy_architecture): New function.
+
+2018-10-06 Tom Tromey <tom@tromey.com>
+
+ PR python/21765:
+ * python/py-symbol.c (gdbpy_initialize_symbols): Redefine
+ SYMBOL_VARIABLES_DOMAIN, SYMBOL_FUNCTIONS_DOMAIN,
+ SYMBOL_TYPES_DOMAIN. Define SYMBOL_MODULE_DOMAIN,
+ SYMBOL_COMMON_BLOCK_DOMAIN, SYMBOL_LOC_COMMON_BLOCK.
+
+2018-10-06 Tom Tromey <tom@tromey.com>
+
+ PR build/17077:
+ * Makefile.in (OPCODES_CFLAGS): Remove "-I$(OPCODES_SRC)/..".
+ * arc-tdep.c, frv-tdep.c, lm32-tdep.c, mep-tdep.c,
+ microblaze-tdep.c, or1k-tdep.h: Use ../opcodes, not opcodes, in
+ #include.
+
+2018-10-06 Tom Tromey <tom@tromey.com>
+
+ * python/py-breakpoint.c (bppy_get_location): Handle a
+ bp_breakpoint without a location.
+
+2018-10-06 Tom Tromey <tom@tromey.com>
+
+ * python/lib/gdb/function/strfns.py (_MemEq, _StrLen, _StrEq)
+ (_RegEx): Reformat help text.
+ * python/lib/gdb/function/caller_is.py (CallerIs, CallerMatches)
+ (AnyCallerIs, AnyCallerMatches): Reformat help text.
+ * python/lib/gdb/function/as_string.py (_AsString): Reformat help
+ text.
+ * python/lib/gdb/command/xmethods.py (InfoXMethod)
+ (EnableXMethod, DisableXMethod): Remove help indentation.
+ Capitalize meta-syntactic variables.
+ * python/lib/gdb/command/unwinders.py (InfoUnwinder)
+ (EnableUnwinder, DisableUnwinder): Remove help indentation.
+ Capitalize meta-syntactic variables.
+ * python/lib/gdb/command/explore.py (ExploreCommand)
+ (ExploreValueCommand, ExploreTypeCommand): Reformat help text.
+ * python/lib/gdb/command/type_printers.py (InfoTypePrinter)
+ (EnableTypePrinter, DisableTypePrinter): Remove help indentation.
+ * python/lib/gdb/command/pretty_printers.py (InfoPrettyPrinter):
+ Remove help indentation.
+ (EnablePrettyPrinter, DisablePrettyPrinter): Likewise.
+ * python/lib/gdb/command/frame_filters.py (EnableFrameFilter)
+ (DisableFrameFilter, SetFrameFilterPriority)
+ (ShowFrameFilterPriority, InfoFrameFilter): Reword help text.
+
+2018-10-06 Tom Tromey <tom@tromey.com>
+
+ PR tui/28819:
+ * tui/tui-io.c (gdb_wgetch): New function.
+ (tui_mld_getc, tui_getc): Use it.
+
+2018-10-05 Tom Tromey <tom@tromey.com>
+
+ * sol-thread.c (sol_thread_target::wait): Rename inner
+ "save_ptid".
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * configure: Rebuild.
+ * warning.m4 (AM_GDB_WARNINGS): Add -Wshadow=local.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * guile/scm-frame.c (gdbscm_frame_read_var): Remove inner
+ declaration of "block".
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * common/filestuff.c (fdwalk): Remove inner declaration of
+ "result".
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * msp430-tdep.c (msp430_push_dummy_call): Rename inner
+ "structs_addr" and hoist declaration.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * linux-tdep.c (linux_make_mappings_corefile_notes): Introduce new
+ variable "size".
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * mdebugread.c (parse_partial_symbols): Use std::string.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * ctf.c (SET_ARRAY_FIELD): Rename "u32".
+ * p-valprint.c (pascal_val_print): Split inner "i" variable.
+ * xtensa-tdep.c (xtensa_push_dummy_call): Declare "i" in loop
+ header.
+ * xstormy16-tdep.c (xstormy16_push_dummy_call): Declare "val" in
+ more inner scope.
+ * xcoffread.c (read_xcoff_symtab): Rename inner "symbol".
+ * varobj.c (varobj_update): Rename inner "newobj",
+ "type_changed".
+ * valprint.c (generic_emit_char): Rename inner "buf".
+ * valops.c (find_overload_match): Rename inner "temp".
+ (value_struct_elt_for_reference): Declare "v" in more inner
+ scope.
+ * v850-tdep.c (v850_push_dummy_call): Rename "len".
+ * unittests/array-view-selftests.c (run_tests): Rename inner
+ "vec".
+ * tui/tui-stack.c (tui_show_frame_info): Declare "i" in loop
+ header.
+ * tracepoint.c (merge_uploaded_trace_state_variables): Declare
+ "tsv" in more inner scope.
+ (print_one_static_tracepoint_marker): Rename inner
+ "tuple_emitter".
+ * tic6x-tdep.c (tic6x_analyze_prologue): Declare "inst" lower.
+ (tic6x_push_dummy_call): Don't redeclare "addr".
+ * target-float.c: Declare "dto" lower.
+ * symtab.c (lookup_local_symbol): Rename inner "sym".
+ (find_pc_sect_line): Rename inner "pc".
+ * stack.c (print_frame): Don't redeclare "gdbarch".
+ (return_command): Rename inner "gdbarch".
+ * s390-tdep.c (s390_prologue_frame_unwind_cache): Renam inner
+ "sp".
+ * rust-lang.c (rust_internal_print_type): Declare "i" in loop
+ header.
+ * rs6000-tdep.c (ppc_process_record): Rename inner "addr".
+ * riscv-tdep.c (riscv_push_dummy_call): Declare "info" in inner
+ scope.
+ * remote.c (remote_target::update_thread_list): Don't redeclare
+ "tp".
+ (remote_target::process_initial_stop_replies): Rename inner
+ "thread".
+ (remote_target::remote_parse_stop_reply): Don't redeclare "p".
+ (remote_target::wait_as): Don't redeclare "stop_reply".
+ (remote_target::get_thread_local_address): Rename inner
+ "result".
+ (remote_target::get_tib_address): Likewise.
+
+ * regcache.c (cooked_read_test): Rename "regnum".
+ * record-btrace.c (cmd_record_btrace_start): Rename inner
+ "exception".
+ * ppc-sysv-tdep.c (ppc64_sysv_abi_return_value): Declare "i" in
+ loop header.
+ * ppc-linux-tdep.c (ppc_linux_syscall_record): Declare "i" in loop
+ header.
+ (ppu2spu_sniffer): Rename inner "buf".
+ * parse.c (operator_check_standard): Rename inner "type",
+ "objfile".
+ * p-valprint.c (pascal_val_print): Introduce new scope for
+ "low_bound", "high_bound".
+ * p-exp.y (yylex): Declare "i" in loop header.
+ * objfiles.c (objfile_relocate1): Declare "i" in loop header.
+ Lower declaration of "s".
+ * nios2-tdep.c (nios2_analyze_prologue): Declare "i" in loop
+ header.
+ (nios2_push_dummy_call): Rename "len".
+ * nat/linux-osdata.c (linux_xfer_osdata_cpus): Rename static
+ "buf".
+ (linux_xfer_osdata_fds, linux_xfer_osdata_shm)
+ (linux_xfer_osdata_sem, linux_xfer_osdata_msg)
+ (linux_xfer_osdata_modules): Likewise.
+ * mips-tdep.c (mips_eabi_push_dummy_call): Rename outer "len".
+ (mips_n32n64_push_dummy_call, mips_o32_push_dummy_call)
+ (mips_o64_push_dummy_call): Likewise.
+ * microblaze-tdep.c (microblaze_analyze_prologue): Rename inner
+ "op".
+ * mi/mi-main.c (list_available_thread_groups): Rename inner
+ "tuple_emitter".
+ (mi_cmd_data_read_memory): Rename inner "opts".
+ * mi/mi-cmd-var.c (varobj_update_one): Rename inner
+ "tuple_emitter".
+ * mep-tdep.c (mep_analyze_prologue): Declare "rn" in loop header.
+ * mdebugread.c (parse_symbol): Rename inner "b". Declare "f" in
+ more inner scope.
+ (parse_partial_symbols): Rename inner "pst", "p", "name"
+ * main.c (captured_main_1): Rename inner "i"s.
+ * machoread.c (macho_symfile_read_all_oso): Don't redeclare
+ "oso2".
+ * linux-tdep.c (linux_info_proc): Rename inner "filename".
+ * linespec.c (linespec_lexer_lex_string): Rename inner "p".
+ * infrun.c (handle_no_resumed): Don't redeclare "thread".
+ (handle_signal_stop): Rename inner "gdbarch".
+ (handle_command): Declare "signum" in loop header.
+ * ia64-tdep.c (ia64_pseudo_register_read): Don't redeclare
+ "status".
+ (examine_prologue): Rename inner "sol" and "sof".
+ (ia64_extract_return_value): Rename inner "val". Declare another
+ "val" in a more inner scope.
+ * hppa-bsd-tdep.c (hppabsd_find_global_pointer): Declare "buf" in
+ inner scope.
+ * guile/scm-symbol.c (gdbscm_lookup_symbol): Rename inner
+ "except".
+ * findvar.c (default_read_var_value): Don't redeclare "addr".
+ * f-exp.y (yylex): Declare "i" in loop header.
+ * eval.c (evaluate_subexp_standard): Don't redeclare "type".
+ Rename inner "type", "expect_type".
+ (evaluate_subexp_for_sizeof): Rename inner "pc".
+ * elfread.c (elf_symfile_read): Rename inner "abfd".
+ * dwarf2read.c (read_debug_names_from_section): Don't redeclare
+ "bytes_read".
+ (process_psymtab_comp_unit_reader): Don't redeclare "gdbarch".
+ (add_partial_subprogram): Rename inner "lowpc" and "highpc".
+ (dwarf_decode_line_header): Rename inner "lh".
+ * dwarf2loc.c (dwarf2_compile_expr_to_ax): Don't redeclare
+ "offset". Declare "i" in loop header.
+ (disassemble_dwarf_expression): Rename inner "addr_size".
+ * dwarf2expr.c (dwarf_expr_context::execute_stack_op): Rename
+ inner "result".
+ (dwarf_expr_context::execute_stack_op): Rename inner "offset".
+ * dwarf2-frame.c (decode_frame_entry_1): Rename inner "length"s.
+ * disasm.c (do_mixed_source_and_assembly_deprecated): Rename inner
+ "inner_list_emitter".
+ (do_mixed_source_and_assembly): Rename inner "tuple_emitter".
+ * disasm-selftests.c (print_one_insn_test): Wrap "bplen"
+ declaration in a block.
+ * csky-tdep.c (csky_analyze_prologue): Declare "offset" lower.
+ * cp-valprint.c (cp_print_value_fields): Don't redeclare
+ "obstack_final_size".
+ * cp-support.c (inspect_type): Declare "i" in loop header.
+ * compile/compile.c (compile_instance::insert_symbol_error):
+ Rename inner "e".
+ * common/agent.c (agent_run_command): Remove inner "ret"
+ declaration.
+ * coffread.c (coff_symfile_read): Rename inner "name".
+ (coff_symfile_read): Rename inner "abfd".
+ * cli/cli-utils.c (get_number_trailer): Rename inner "val".
+ * cli/cli-cmds.c (print_disassembly): Rename inner "low" and
+ "high".
+ * c-exp.y (lex_one_token): Move "len" declaration lower.
+ * breakpoint.c (create_longjmp_master_breakpoint): Don't redeclare
+ "gdbarch".
+ (create_exception_master_breakpoint): Likewise. Don't redeclare
+ "b".
+ (watch_command_1): Declare "mark" later.
+ (clear_command): Don't shadow "a" or "b".
+ (delete_command): Rename inner "b".
+ (delete_trace_command): Likewise.
+ * arm-tdep.c (thumb_process_displaced_32bit_insn): Rename inner
+ "op".
+ (arm_gdbarch_init): Remove inner "e_flags".
+ * arch/arm-get-next-pcs.c (thumb_get_next_pcs_raw): Declare
+ "offset" in inner blocks.
+
+2018-10-04 Simon Marchi <simon.marchi@ericsson.com>
+
+ * dwarf-index-write.c (file_write): Don't write if the vector is
+ empty.
+
+2018-10-05 Tom de Vries <tdevries@suse.de>
+
+ * python/py-progspace.c (pspy_solib_name): Fix type mismatch in
+ PyArg_ParseTuple call.
+
+2018-10-05 Tom de Vries <tdevries@suse.de>
+
+ * python/py-record-btrace.c (recpy_bt_goto): Fix type mismatch in
+ PyArg_ParseTuple call.
+
+2018-10-04 Joel Brobecker <brobecker@adacore.com>
+
+ * psymtab.c (recursively_search_psymtabs): Reformat parameters
+ to avoid exceeding 80 characters per line limit.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * symfile.c (syms_from_objfile_1, finish_new_objfile)
+ (reread_symbols): Update.
+ * complaints.h (clear_complaints): Remove argument.
+ * complaints.c (enum complaint_series): Remove.
+ (series): Remove global.
+ (complaint_internal): Update.
+ (clear_complaints): Remove argument.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * symfile.c (symbol_file_add_with_addrs): Do not print "no
+ debugging symbols" message if there is a separate debug objfile.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ PR cli/19551:
+ * symfile.c (symbol_file_add_with_addrs): Update output.
+ * psymtab.c (require_partial_symbols): Update output.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ PR cli/22234:
+ * complaints.c: Emit \n.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * symfile.c (symbol_file_add_with_addrs, symbol_file_clear)
+ (separate_debug_file_exists, find_separate_debug_file)
+ (add_symbol_file_command, reread_symbols, allocate_symtab)
+ (allocate_compunit_symtab): Use filtered printing, not
+ unfiltered.
+ * psymtab.c (require_partial_symbols, dump_psymtab)
+ (allocate_psymtab): Use filtered printing, not unfiltered.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * complaints.c (complaint_internal): Correctly check complaint
+ count.
+
+2018-10-04 Tom Tromey <tom@tromey.com>
+
+ * complaints.h (struct complaints): Remove declaration.
+ * complaints.c (clear_complaints): Remove an unused variable.
+
+2018-10-04 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ * MAINTAINERS (Write After Approval): Add self.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * guile/scm-value.c (gdbscm_value_to_string): Initialize
+ "buffer_contents".
+ * coffread.c (coff_symtab_read): Initialize "newobj".
+
+2018-10-03 Simon Marchi <simon.marchi@polymtl.ca>
+
+ * dwarf2read.c (read_func_scope): Remove struct keyword in
+ range-based for.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * README: Mention --enable-ubsan.
+ * NEWS: Mention --enable-ubsan.
+ * acinclude.m4: Include sanitize.m4.
+ * configure: Rebuild.
+ * configure.ac: Call AM_GDB_UBSAN.
+ * sanitize.m4: New file.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * expression.h (enum exp_opcode): Use uint8_t as base type.
+ * expprint.c (op_name): Handle invalid opcodes.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * parse.c (prefixify_expression): Add assert.
+ (parse_exp_in_context_1): Throw exception if the expression is
+ empty.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * dwarf2read.c (read_signed_leb128): Work in ULONGEST.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * c-exp.y (parse_number): Work in unsigned. Remove casts.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * dwarf2read.c (read_subrange_type): Make "negative_mask"
+ unsigned.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * findvar.c (extract_integer): Do work in an unsigned type.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * common/enum-flags.h (enum_flags::operator~): Add static assert.
+ * symfile-add-flags.h (enum symfile_add_flag): Use unsigned as
+ base type.
+ * objfile-flags.h (enum objfile_flag): Use unsigned as base type.
+ * gdbtypes.h (enum type_instance_flag_value): Use unsigned as base
+ type.
+ * c-lang.h (enum c_string_type_values): Use unsigned as base
+ type.
+ * btrace.h (enum btrace_thread_flag): Use unsigned as base type.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * dwarf2-frame.h (dwarf2_frame_state_reg_info)
+ <~dwarf2_frame_state_reg_info>: Update.
+ <dwarf2_frame_state_reg_info>: Update.
+ <alloc_regs>: Add assertion. Update.
+ <reg>: Now a std::vector.
+ <num_regs>: Remove.
+ <swap>: Update.
+ * dwarf2-frame.c (dwarf2_restore_rule, execute_cfa_program)
+ (execute_cfa_program_test, dwarf2_frame_cache): Update.
+
+2018-10-03 Tom Tromey <tom@tromey.com>
+
+ * namespace.c (add_using_directive): Don't pass NULL to memcpy.
+
+2018-10-03 Philippe Waroquiers <philippe.waroquiers@skynet.be>
+
+ * tid-parse.c (tid_is_in_list): Fix wrong 'See' comment.
+
+2018-10-02 Tom Tromey <tom@tromey.com>
+
+ * aarch64-linux-tdep.c (aarch64_linux_sigframe_init): Use pulongest.
+
+2018-10-02 John Darrington <john@darrington.wattle.id.au>
+
+ * NEWS: Mention changed commands.
+ * ser-uds.c: New file.
+ * configure.ac (SER_HARDWIRE): Add ser-uds.o.
+ * configure: Regenerate.
+ * Makefile.in: Add new file.
+ * serial.c (serial_open): Check if filename is a socket
+ and lookup the appropriate interface accordingly.
+
+2018-10-01 Alan Hayward <alan.hayward@arm.com>
+
+ * aarch64-linux-tdep.c (AARCH64_SIGCONTEXT_RESERVED_OFFSET): Add
+ define.
+ (AARCH64_EXTRA_MAGIC): Likewise.
+ (AARCH64_FPSIMD_MAGIC): Likewise.
+ (AARCH64_SVE_MAGIC): Likewise.
+ (AARCH64_EXTRA_DATAP_OFFSET): Likewise.
+ (AARCH64_FPSIMD_FPSR_OFFSET): Likewise.
+ (AARCH64_FPSIMD_FPCR_OFFSET): Likewise.
+ (AARCH64_FPSIMD_V0_OFFSET): Likewise.
+ (AARCH64_FPSIMD_VREG_SIZE): Likewise.
+ (AARCH64_SVE_CONTEXT_VL_OFFSET): Likewise.
+ (AARCH64_SVE_CONTEXT_REGS_OFFSET): Likewise.
+ (AARCH64_SVE_CONTEXT_P_REGS_OFFSET): Likewise.
+ (AARCH64_SVE_CONTEXT_FFR_OFFSET): Likewise.
+ (AARCH64_SVE_CONTEXT_SIZE): Likewise.
+ (read_aarch64_ctx): Add function.
+ (aarch64_linux_sigframe_init): Detect FP registers.
+
+2018-10-01 Alan Hayward <alan.hayward@arm.com>
+
+ * aarch64-tdep.c (AARCH64_Q0_REGNUM): Move to here.
+ (AARCH64_D0_REGNUM): Likewise.
+ (AARCH64_S0_REGNUM): Likewise.
+ (AARCH64_H0_REGNUM): Likewise.
+ (AARCH64_B0_REGNUM): Likewise.
+ (AARCH64_SVE_V0_REGNUM): Likewise.
+ * arch/aarch64.h (AARCH64_Q0_REGNUM): Move from here.
+ (AARCH64_D0_REGNUM): Likewise.
+ (AARCH64_S0_REGNUM): Likewise.
+ (AARCH64_H0_REGNUM): Likewise.
+ (AARCH64_B0_REGNUM): Likewise.
+ (AARCH64_SVE_V0_REGNUM): Likewise.
+
+2018-10-01 Gary Benson <gbenson@redhat.com>
+
+ * gdb_proc_service.h (gdb_prfpregset_t): Remove typedef.
+ * proc-service.c (ps_lgetfpregs, ps_lsetfpregs): Use
+ prfpregset_t instead of gdb_prfpregset_t.
+ * configure.ac (PRFPREGSET_T_BROKEN): Remove check.
+ * configure, config.in: Rebuild.
+
+2018-10-01 Gary Benson <gbenson@redhat.com>
+
+ * common/gdb_proc_service.h: New file, factored out from...
+ * gdb_proc_service.h: Moved common code to the above file.
+ * Makefile.in (HFILES_NO_SRCDIR): Add the above new file.
+
+2018-10-01 Gary Benson <gbenson@redhat.com>
+
+ * gdb_proc_service.h: Use elf_gregset_t if prgregset_t is
+ undefined. Use elf_fpregset_t if prfpregset_t is undefined.
+
+2018-10-01 Gary Benson <gbenson@redhat.com>
+
+ * configure.ac: Check if sys/procfs.h defines elf_fpregset_t.
+ (AC_CHECK_HEADERS): Check for linux/elf.h.
+ * configure, config.in: Rebuild.
+ * gdb_proc_service.h: Include linux/elf.h if sys/procfs.h
+ doesn't define elf_fpregset_t.
+
+2018-10-01 Gary Benson <gbenson@redhat.com>
+
+ * gdb_proc_service.h: Whitespace change.
+
+2018-10-01 Tom Tromey <tom@tromey.com>
+
+ * unittests/scoped_mmap-selftests.c: Don't check HAVE_UNISTD_H.
+ * unittests/scoped_fd-selftests.c: Don't check HAVE_UNISTD_H.
+ * common/scoped_fd.h: Don't check HAVE_UNISTD_H.
+