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+2004-11-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ * mempcpy.c, mempcpy.h: New files, taken from gnulib.
+ * Makefile.am: (libfetish_a_SOURCES): Add getcwd.h, mempcpy.h.
+ * getcwd.c: Replace by a copy of glibc/sysdeps/posix/getcwd.c, but
+ with the following changes.
+ (__set_errno): Parenthesize properly.
+ Include <stdbool.h>.
+ (MIN, MAX, MATCHING_INO): New macros.
+ (__getcwd): Define with prototype, not K&R form.
+ Use heuristics to allocate default buffer on stack if possible.
+ If AT_FDCWD is defined, use openat and fstatat to avoid O(N**2)
+ behavior, and to avoid the PATH_MAX limit when computing
+ ../../../../...
+ Use MATCHING_INO to compare inode number to file.
+ Check for arithmetic overflow in size calculations.
+ Fix bug in reallocation of dot array that caused getcwd to fail
+ on directories nested deeper than 75.
+ Be more careful about saving errno on error.
+ Do not use realloc; use only free+malloc, as this is a bit
+ more flexible and avoids a needless copy operation.
+ Do not inspect st_dev and st_ino for symbolic links; POSIX
+ doesn't specify the latter.
+ Check for closedir errors.
+ Avoid needless casts.
+ Use "#ifdef weak_alias" around weak_alias, to be like other
+ glibc code.
+ The following changes to getcwd.c have effect only when used in
+ gnulib; they have no effect inside glibc proper.
+ (#pragma alloca) [defined _AIX && !defined __GNUC__]: Remove,
+ as alloca isn't used.
+ (alloca, __alloca): Likewise.
+ [!_LIBC]: Include "getcwd.h", "mempcpy.h".
+ Include <stddef.h>, <stdlib.h>, <string.h>, <limits.h>
+ unconditionally, as gnulib assumes C89 or better.
+ Do not include <sys/param.h>.
+ (errno) [!defined __GNU_LIBRARY__ && !defined STDC_HEADERS]: Remove
+ no-longer-necessary 'extern int errno' decl; gnulib assumes C89 or
+ better.
+ (NULL) [!defined NULL]: Remove; we assume C89 or better.
+ Include <dirent.h> in a way that is compatible with modern Autoconf.
+ (_D_ALLOC_NAMELEN, _D_EXACT_NAMLEN):
+ New macros, if not already defined.
+ Include <unistd.h> if _LIBC, not if __GNU_LIBRARY__.
+ Use "_LIBC", not "defined _LIBC", for consistency.
+ (HAVE_MEMPCPY): Remove; no longer needed now that gnulib has
+ a mempcpy module.
+ (__lstat, __closedir, __opendir, __readdir) [!_LIBC]: New macros.
+ (GETCWD_RETURN_TYPE): Remove. All uses replaced by char *.
+ * xgetcwd.c: David MacKenzie's old code was removed, so give
+ credit only to Jim Meyering and adjust the copyright dates.
+ Do not include <limits.h>, <stdio.h>, <sys/types.h>,
+ <stdlib.h>, <unistd.h>, "pathmax.h".
+ Instead, include "xgetcwd.h" (first) and "getcwd.h".
+ (INITIAL_BUFFER_SIZE): Remove.
+ (xgetcwd): Rely on getcwd, since we now depend on a reliable one.
+
2004-11-23 Paul Eggert <eggert@cs.ucla.edu>
* utimens.c (__attribute__, ATTRIBUTE_UNUSED): New macros.