+2005-09-20 Derek Price <derek@ximbiot.com>
+
+ * getaddrinfo.c: Don't include <netdb.h> included from getaddrinfo.h.
+
+2005-09-19 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ Use a consistent style for including <config.h>.
+ * __fpending.c, acl.c, argmatch.c,
+ argp-help.c, argp-parse.c,
+ argp-pvh.c, backupfile.c, basename.c, c-stack.c,
+ calloc.c, check-version.c, cloexec.c, closeout.c, copy-file.c,
+ creat-safer.c, cycle-check.c, dirfd.c, dirname.c, dup-safer.c,
+ dup2.c, euidaccess.c, exclude.c, exitfail.c, fatal-signal.c,
+ fd-safer.c, file-type.c, fileblocks.c, filemode.c,
+ filenamecat.c, findprog.c, fnmatch.c, fopen-safer.c, free.c,
+ fsusage.c, ftruncate.c, full-write.c, fwriteerror.c,
+ getaddrinfo.c, getcwd.c, getdelim.c, getline.c, getlogin_r.c,
+ getndelim2.c, getnline.c, getopt1.c, getpass.c, group-member.c,
+ hard-locale.c, hash-pjw.c, hash.c, human.c, idcache.c,
+ inet_ntop.c, isdir.c, long-options.c, malloc.c, memcasecmp.c,
+ memcmp.c, memcoll.c, memcpy.c, memmove.c, mkdir-p.c,
+ modechange.c, mountlist.c, open-safer.c, physmem.c,
+ pipe-safer.c, pipe.c, poll.c, posixver.c, progname.c,
+ progreloc.c, putenv.c, quote.c, quotearg.c, readline.c,
+ readlink.c, realloc.c, regex.c, rename.c, rmdir.c, rpmatch.c,
+ safe-read.c, same.c, save-cwd.c, savedir.c, sig2str.c,
+ strcspn.c, strerror.c, stripslash.c, strncasecmp.c, strndup.c,
+ strnlen.c, strnlen1.c, strsep.c, strstr.c, strtod.c,
+ strtoimax.c, strtol.c, strverscmp.c, tempname.c, time_r.c,
+ userspec.c, utimecmp.c, version-etc-fsf.c,
+ version-etc.c, wait-process.c, xalloc-die.c, xgetcwd.c,
+ xmalloc.c, xmemcoll.c, xnanosleep.c, xreadlink.c, xsetenv.c,
+ xstrndup.c, xstrtoimax.c, xstrtol.c, xstrtoumax.c, yesno.c:
+ Standardize inclusion of config.h.
+ * __fpending.h, dirfd.h, getdate.h, human.h,
+ inttostr.h: Removed inclusion of config.h from header files.
+ * inttostr.c: Adjusted in-tree users.
+ * timespec.h: Remove superfluous warning to include config.h.
+ * atexit.c, chdir-long.c chown.c, fchown-stub.c, getgroups.c,
+ gettimeofday.c, lchown.c, lstat.c, mkdir.c, mkstemp.c,
+ nanosleep.c, openat.c, raise.c, readtokens0.c, readutmp.c,
+ unlinkdir.c: Guard inclusion of config.h with HAVE_CONFIG_H.
+
+2005-09-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ * stat-time.h: New file.
+ * timespec.h (ST_TIME_CMP_NS, ST_TIME_CMP, ATIME_CMP, CTIME_CMP):
+ (MTIME_CMP, TIMESPEC_NS): Remove. Now done by stat-time.h,
+ in a different way.
+ (timespec_cmp): New function.
+ * utimecmp.c: Include stat-time.h.
+ (SYSCALL_RESOLUTION): Depend on whether various struct stat
+ members exist, not on the obsolescent ST_MTIM_NSEC.
+ (utimecmp): Use the new stat-time functions rater than TIMESPEC_NS.
+
+2005-09-15 Derek Price <derek@ximbiot.com>
+ Paul Eggert <eggert@cs.ucla.edu>
+
+ * regcomp.c, regexec.c, regex_internal.c: Back out previous
+ changes, consolidating in...
+ * regex_internal.h: ...this file.
+
+2005-09-15 Derek Price <derek@ximbiot.com>
+
+ * regex_internal.h: Blank `pure' for GNUC < 3.
+ * regex_internal.c: Ditto, using this...
+ (__GNUC_PREREQ): ...new macro.
+ * regcomp.c, regexec.c: Blank `always_inline' for GNUC < 3.1 using...
+ (__GNUC_PREREQ): ...this new macro.
+
+ * strstr.h: Include string.h. Define strstr as a macro here.
+
+2005-09-13 Derek Price <derek@ximbiot.com>
+
+ * canon-host.c (canon_host_r): Set *cherror on memory allocation
+ failure.
+ Reported by Jim Meyering <jim@meyering.net>.
+
+2005-09-13 Jim Meyering <jim@meyering.net>
+
+ * canon-host.c: Filter through gnu indent and reword comments slightly.
+ * canon-host.h (ch_strerror_r): Tweak cpp indentation and spacing.
+
+2005-09-12 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
+
+ * lib/base64.c: Typo.
+ (base64_encode): Put b64str in initialized data section.
+
+2005-09-12 Derek Price <derek@ximbiot.com>
+
+ Return usable errors from canon-host.
+ * canon-host.h: New file.
+ * canon-host.c (canon_host): Wrap...
+ (canon_host_r): ...this new function, which now relies exclusively on
+ getaddrinfo.
+ (ch_strerror): New function.
+ (last_cherror): New global.
+ * getaddrinfo.c: Move include of getaddrinfo.h first to test interface.
+ (getaddrinfo): Add AI_CANONNAME functionality. Don't do arithmetic on
+ void *.
+ (freeaddrinfo): Free ai->ai_canonname when set.
+
+2005-09-12 Derek Price <derek@ximbiot.com>
+ Paul Eggert <eggert@cs.ucla.edu>
+
+ * glob-libc.h: Renamed from glob_.h. The new version is
+ taken from libc's glob.h, except with '#ifdef __GLOB_GNULIB'
+ protecting things that should be done only in gnulib contexts.
+ * glob_.h: New file, containing only the glob things needed for
+ gnulib.
+ (GLOB_PREFIX): Remove. All uses changed to look for __GLOB_GNULIB.
+ (__GLOB_CONCAT, __GLOB_XCONCAT, __GLOB_ID): Remove; no longer needed.
+ (glob, globfree, glob_pattern_p): Now defined simply in terms of
+ rpl_glob, rpl_globfree, rpl_glob_pattern_p.
+ (__GLOB_GNULIB): New macro, to keep the glob.h changes clearer
+ and to respect the namespace rules better.
+
+2005-09-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ Merge glibc and coreutils changes into gnulib, plus a few
+ extra fixes.
+ * md5.c: Use #error rather than a string.
+ (CYCLIC): New macro, from glibc source. Use it instead of rol.
+ * md5.h (__GNUC_PREREQ, __THROW): Define if not defined already.
+ (__attribute__): Define to empty for non recent-GCC.
+ (__md5_buffer, __md5_finish_ctx, __md5_init_ctx, __md5_process_block):
+ (__md5_process_bytes, __md5_read_ctx, __md5_stream):
+ Renamed from their non-__ counterparts, with new macros replacing
+ them if not _LIBC. Add __THROW attribute.
+ (rol): Remove.
+ (struct md5_ctx): Align buffer if using GCC.
+ * sha1.h (struct sha1_ctx): Likewise.
+ * sha1.c (SWAP): Renamed from the NOTSWAP. All uses changed.
+ The old name was backwards.
+ (NOTSWAP): Remove; not used.
+ (rol): New macro, moved here from md5.h.
+ (sha1_process_block): Remove a FIXME that doesn't make sense.
+
+2005-09-12 Derek Price <derek@ximbiot.com>
+
+ * gai_strerror.c: Include config.h when available. Include
+ getaddrinfo.h before other headers to test interface.
+ Reported by Larry Jones <lawrence.jones@ugs.com>.
+
+2005-09-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ * glob.c (glob, globfree, __glob_pattern_p): Use old-style function
+ definitions, since that's the preferred style in glibc.
+ Fix a minor spacing issue, and update copyright notice to match glibc's.
+
+2005-09-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ * regex_internal.h (bitset_not): Add parens to avoid gcc -Wall warning.
+
+2005-09-06 Simon Josefsson <jas@extundo.com>
+
+ * getpass.c (getpass): Fix typo, test for HAVE_TCSETATTR and not
+ TCSETATTR. Reported by Derek Price <derek@ximbiot.com>.
+
+2005-09-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ Change bitset word type from unsigned int to unsigned long int,
+ as this has better performance on typical 64-bit hosts.
+ Port bitset code to hosts with unusual word sizes.
+ * regcomp.c (build_equiv_class, build_charclass, build_range_exp):
+ (build_collating_symbol):
+ Prefer bitset to re_bitset_ptr_t in prototypes, when the actual
+ argument is a bitset. This is merely a style issue, but it makes
+ it clearer that an entire array is expected.
+ (re_compile_fastmap_iter, init_dfa, init_word_char, optimize_subexps):
+ * regcomp.c (lower_subexp, parse_bracket_exp, built_charclass_op):
+ Port to the case where bitset_word is not the same as unsigned int.
+ * regex_internal.h (bitset_set, bitset_clear, bitset_contain):
+ (bitset_not, bitset_merge, bitset_set_all, bitset_mask):
+ Likewise.
+ * regexec.c (check_dst_limits_calc_pos_1, check_subexp_matching_top):
+ (build_trtable, group_nodes_into_DFAstates):
+ Likewise.
+ * regcomp.c (re_compile_fastmap_iter, utf8_sb_map, optimize_utf8):
+ Don't assume that SBC_MAX is a multiple of BITSET_WORD_BITS.
+ * regex_internal.h (bitset_set_all, bitset_not): Likewise.
+ * regexec.c (group_nodes_into_DFAstates): Likewise.
+ * regcomp.c (utf8_sb_map): Don't assume UINT_MAX == 0xffffffff.
+ * regcomp.c (optimize_subexps, lower_subexp):
+ Work even if bitset_word has holes in its bitwise representation.
+ * regex_internal.h (BITSET_WORD_BITS): Likewise.
+ * regexec.c (check_dst_limits_calc_pos_1, check_subexp_matching_top):
+ Likewise.
+ * regex_internal.c (re_string_reconstruct):
+ Don't assume UCHAR_MAX == 255.
+ * regex_internal.h (bitset_set_all): Likewise.
+ * regex_internal.h (BITSET_WORD_BITS): Renamed from UINT_BITS.
+ All uses changed.
+ (BITSET_WORDS): Renamed from BITSET_UINTS. All uses changed.
+ (bitset_word): New type, replacing 'unsigned int' for bitset uses.
+ All uses changed.
+ (BITSET_WORD_MAX): New macro.
+ (bitset_set, bitset_clear, bitset_contain, bitset_empty):
+ (bitset_set_all, bitset_copy): Now inline functions, not macros.
+ (bitset_empty, bitset_copy):
+ Prefer sizeof (bitset) to multiplying it out ourselves.
+ (bitset_not_merge): Remove; unused.
+ (bitset_contain): Return bool, not unsigned int with one bit on.
+ All callers changed.
+ * regexec.c (build_trtable): Don't assume bitset has no stricter
+ alignment than re_node_set; do this by defining a new internal
+ type struct dests_alloc and using it to allocate memory.
+
+2005-09-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ Check for arithmetic overflow when calculating sizes, to prevent
+ some buffer-overflow issues. These patches are conservative, in the
+ sense that when I couldn't determine whether an overflow was possible,
+ I inserted a run-time check.
+ * regex_internal.h (re_xmalloc, re_xrealloc, re_x2realloc): New macros.
+ (SIZE_MAX) [!defined SIZE_MAX]: New macro.
+ (re_alloc_oversized, re_x2alloc_oversized, re_xnmalloc):
+ (re_xnrealloc, re_x2nrealloc): New inline functions.
+ * lib/regcomp.c (init_dfa, analyze, build_range_exp, parse_bracket_exp):
+ (build_equiv_class, build_charclass): Check for arithmetic overflow
+ in size expression calculations.
+ * lib/regex_internal.c (re_string_realloc_buffers):
+ (build_wcs_upper_buffer, re_node_set_add_intersect):
+ (re_node_set_init_union, re_node_set_insert, re_node_set_insert_last):
+ (re_dfa_add_node, register_state): Likewise.
+ * lib/regexec.c (re_search_stub, re_copy_regs, re_search_internal):
+ (prune_impossible_nodes, push_fail_stack, set_regs, check_arrival):
+ (build_trtable, extend_buffers, match_ctx_init, match_ctx_add_entry):
+ (match_ctx_add_subtop, match_ctx_add_sublast): Likewise.
+
+2005-09-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ * glob.c (GET_LOGIN_NAME_MAX): Renamed from LOGIN_NAME_MAX,
+ to avoid a collision with bits/local_lim.h in glibc.
+ All uses changed. Problem reported by Dmitry V. Levin in
+ <http://sources.redhat.com/bugzilla/show_bug.cgi?id=1060>.
+
+ * regex_internal.c (build_wcs_upper_buffer): Fix portability
+ bugs in int versus size_t comparisons.
+ (re_string_context_at): Fix bug where the code assumed that
+ Idx is signed.
+
+ Use bool where appropriate.
+ * regcomp.c (re_set_fastmap): ICASE arg is bool, not int.
+ All callers changed.
+ (calc_eclosure_iter): Likewise, for ROOT arg.
+ (parse_bracket_element): Likewise, for ACCEPT_HYPHEN arg.
+ (build_charclass_op): Likewise, for NON_MATCH arg.
+ * regex_internal.c (re_string_allocate, re_string_construct):
+ (re_string_construct_common): Likewise, for ICASE arg.
+ * regexec.c (re_search_2_stub, re_search_stub):
+ Likewise, for RET_LEN arg.
+ (check_matching): Likewise, for FL_LONGEST_MATCH arg.
+ (set_regs): Likewise, for FL_BACKTRACK arg.
+ * regcomp.c (re_compile_fastmap_iter, optimize_utf8):
+ (duplicate_node_closure, calc_inveclosure, calc_eclosure):
+ (calc_eclosure_iter, parse_bracket_exp):
+ Use bool for internal variables that are booleans.
+ * regexec.c (re_search_internal, check_matching, proceed_next_node):
+ (set_regs, build_sifted_states, sift_states_bkref):
+ (check_arrival_add_next_nodes, check_arrival_expand_ecl_sub):
+ (expand_bkref_cache, build_trtable, group_nodes_into_DFAstates):
+ (find_collation_sequence_value):
+ Likewise.
+ * regex_internal.c (re_node_set_insert, re_node_set_insert_last):
+ (re_node_set_compare):
+ Return bool, not int. All callers changed.
+ * regexec.c (check_halt_node_context, check_dst_limits):
+ (build_trtable, check_node_accept): Likewise.
+ * regex_internal.h: Include stdbool.h.
+
+ Fix bugs uncovered when converting to bool.
+ * regcomp.c (calc_eclosure_iter): Check for storage allocation
+ failure instead of charging ahead blindly.
+ * regex_internal.c (register_state): Likewise.
+ * regexec.c (re_search_2_stub): Use simpler method than boolean
+ for freeing internal storage.
+ (group_nodes_into_DFA_states): Use unsigned int, not int, for
+ bitset pieces used as boolean, to avoid undefined behavior
+ on hosts that do int overflow checking.
+
+2005-08-31 Derek Price <derek@ximbiot.com>
+
+ * getdelim.c (getdelim): Return EOF on EOF.
+ Reported by Larry Jones <lawrence.jones@ugs.com>.
+
+2005-08-31 Paul Eggert <eggert@cs.ucla.edu>
+
+ * regex_internal.c (re_string_reconstruct): Don't assume buffer
+ lengths fit in regoff_t; this isn't true if regoff_t is the same
+ width as size_t.
+ * regex.c (re_search_internal): 5th arg is LAST_START
+ (= START + RANGE) instead of RANGE. This avoids overflow
+ problems when regoff_t is the same width as size_t.
+ All callers changed.
+ (re_search_2_stub): Check for overflow when adding the
+ sizes of the two strings.
+ (re_search_stub): Check for overflow when adding START
+ to RANGE; if it occurs, substitute the extreme value.
+
+2005-08-31 Jim Meyering <jim@meyering.net>
+
+ * regcomp.c (search_duplicated_node): Make first pointer arg
+ a pointer-to-const.
+ * regex_internal.c (create_ci_newstate, create_cd_newstate):
+ (register_state): Likewise.
+ * regexec.c (search_cur_bkref_entry, check_dst_limits):
+ (check_dst_limits_calc_pos_1, check_dst_limits_calc_pos):
+ (group_nodes_into_DFAstates): Likewise.
+
+2005-08-31 Paul Eggert <eggert@cs.ucla.edu>
+
+ On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
+ old glibc regex code mishandles strings longer than 2**31 bytes.
+ This patch fixes this when the regex code is used in gnulib
+ (i.e., outside glibc).
+
+ This patch should not affect the use of the regex code inside
+ glibc. No doubt this problem also needs to be handled for glibc
+ as well, but the result will be an incompatible change to the
+ glibc ABI, and the old ABI will have to be supported too. That
+ can be the the subject for another patch.
+
+ * regex.h (_REGEX_LARGE_OFFSETS): New feature-test macro,
+ governing whether the rest of this patch is active. By default,
+ the macro is disabled and the patch has no effect.
+ (regoff_t) [defined _REGEX_LARGE_OFFSETS]: Define to off_t, not int.
+ (__re_idx_t, __re_size_t, __re_long_size_t): New types.
+ (struct re_pattern_buffer, re_search, re_search_2, re_match):
+ (re_match_2, re_set_registers): Use the new types.
+ * regex_internal.h (Idx, re_hashval_t): New types.
+ (REG_MISSING, REG_ERROR, REG_VALID_INDEX, REG_VALID_NONZERO_INDEX):
+ New macros.
+ (re_node_set, re_charset_t, re_token_t, re_string_realloc_buffers):
+ (re_string_context_at, bin_tree_t, re_dfastate_t):
+ (struct re_state_table_entry, state_array_t, re_sub_match_last_t):
+ (re_sub_match_top_t, re_match_context_t, re_sift_context_t):
+ (struct re_fail_stack_ent_t, struct re_fail_stack_t, struct re_dfa_t):
+ (re_string_char_size_at, re_string_wchar_at):
+ (re_string_elem_size_at):
+ Use the new types and macros to port to 64-bit hosts.
+ Use unsigned types for internal values, so that the code
+ mostly works even for arrays larger than SSIZE_MAX.
+ * regcomp.c (re_compile_internal, init_dfa, duplicate_node):
+ (search_duplicated_node, calc_eclosure_iter, fetch_number):
+ (parse_reg_exp, parse_branch, parse_expression, parse_sub_exp):
+ (build_equiv_class, build_charclass, re_compile_fastmap_iter):
+ (free_dfa_content, create_initial_state, optimize_utf8, analyze):
+ (optimize_subexps, calc_first, link_nfa_nodes, duplicate_node_closure):
+ (calc_inveclosure, parse_dup_op, build_range_exp):
+ (build_collating_symbol, parse_bracket_exp, build_charclass_op):
+ (fetch_number, create_token_tree, mark_opt_subexp):
+ Likewise.
+ * regex_internal.c (re_string_construct_common, create_ci_newstate):
+ (create_cd_newstate, re_string_allocate, re_string_construct):
+ (re_string_realloc_buffers, build_wcs_upper_buffer):
+ (re_string_skip_chars, build_upper_buffer, re_string_translate_buffer):
+ (re_string_reconstruct, re_string_peek_byte_case):
+ (re_string_fetch_byte_case, re_string_context_at):
+ (re_node_set_alloc, re_node_set_init_1, re_node_set_init_2):
+ (re_node_set_init_copy, re_node_set_add_intersect):
+ (re_node_set_init_union, re_node_set_merge, re_node_set_insert):
+ (re_node_set_insert_last, re_node_set_compare, re_node_set_contains):
+ (re_node_set_remove_at, re_dfa_add_node, calc_state_hash):
+ (re_acquire_state, re_acquire_state_context, register_state):
+ Likewise.
+ * regex.c (match_ctx_init, match_ctx_add_entry, search_cur_bkref_entry):
+ (match_ctx_add_subtop, match_ctx_add_sublast, sift_ctx_init):
+ (re_search_internal, re_search_2_stub, re_search_stub)
+ (re_copy_regs, check_matching, check_halt_state_context, update_regs):
+ (push_fail_stack, sift_states_iter_mb, build_sifted_states):
+ (update_cur_sifted_state, check_dst_limits):
+ (check_dst_limits_calc_pos_1, check_dst_limits_calc_pos):
+ (check_subexp_limits, sift_states_bkref, merge_state_array):
+ (check_subexp_matching_top, get_subexp, get_subexp_sub):
+ (find_subexp_node, check_arrival, check_arrival_add_next_nodes):
+ (check_arrival_expand_ecl, check_arrival_expand_ecl_sub):
+ (expand_bkref_cache, check_node_accept_bytes):
+ (group_nodes_into_DFAstates, check_node_accept, regexec, re_match):
+ (re_search, re_match_2, re_search_2, prune_impossible_nodes):
+ (acquire_init_state_context, check_halt_node_context):
+ (proceed_next_node, pop_fail_stack, set_regs, free_fail_stack_return):
+ (sift_states_backward, clean_state_log_if_needed):
+ (sub_epsilon_src_nodes, add_epsilone_src_nodes, merge_state_with_log):
+ (find_recover_state, transit_state_sb, transit_state_mb):
+ (transit_state_bkref, build_trtable, match_ctx_clean):
+ Likewise.
+ * regcomp.c (parse_dup_op): Add an extra test if Idx is unsigned,
+ to work around an assumption that REG_MISSING is negative.
+
+ * regcomp.c (re_comp) [defined _REGEX_RE_COMP || defined _LIBC]:
+ (seek_collating_symbol_entry) [defined _LIBC]:
+ (lookup_collation_sequence_value) [defined _LIBC]:
+ (build_range_exp, build_collating_symbol) [defined _LIBC]:
+ Use prototypes rather than old-style function definitions.
+ * regexec.c (re_exec) [defined _REGEX_RE_COMP || defined _LIBC]:
+ (transit_state_sb) [0]:
+ (find_collation_sequence_value) [defined _LIBC]: Likewise.
+
+ * regexec.c (re_search_internal): Simplify update of rm_so and
+ rm_eo.
+
+ * regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char):
+ (optimize_subexps, lower_subexp):
+ Don't assume 1<<31 has defined behavior on hosts with 32-bit int,
+ since the signed shift might overflow. Use 1u<<31 instead.
+ * regex_internal.h (bitset_set, bitset_clear, bitset_contain): Likewise.
+ * regexec.c (check_dst_limits_calc_pos_1, check_subexp_matching_top):
+ Likewise.
+
+ * regcomp.c (optimize_subexps, lower_subexp):
+ Use CHAR_BIT rather than 8, for clarity.
+ * regexec.c (check_dst_limits_calc_pos_1):
+ (check_subexp_matching_top): Likewise.
+ * regcomp.c (init_dfa): Make table_size unsigned, so that we don't
+ have to worry about portability issues when shifting it left.
+ Remove no-longer-needed test for table_size > 0.
+ * regcomp.c (parse_sub_exp): Do not shift more bits than there are
+ in a word, as the resulting behavior is undefined.
+ * regexec.c (check_dst_limits_calc_pos_1): Likewise;
+ in one case, a <= should have been an <, and in another case the
+ whole test was missing.
+ * regex_internal.h (BYTE_BITS): Remove. All uses changed to
+ the standard name CHAR_BIT.
+ * regexec.c (match_ctx_add_entry): Don't assume that ~0 == -1;
+ this is not true on one's complement and signed-magnitude hosts.
+
+ * regex_internal.h (re_sub_match_top_t): Remove unused member
+ next_last_offset.
+ (struct re_dfa_t): Remove unused member states_alloc.
+ * regcomp.c (init_dfa): Don't initialize unused members.
+
+2005-08-31 Bruno Haible <bruno@clisp.org>
+
+ * strstr.c: Include <stddef.h>, for NULL.
+ * strcasestr.c: Likewise.
+ Reported by Yoann Vandoorselaere <yoann.v@prelude-ids.com>.
+