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| author | Eric Blake <ebb9@byu.net> | 2009-10-08 15:57:06 -0600 |
|---|---|---|
| committer | Eric Blake <ebb9@byu.net> | 2009-10-10 09:14:35 -0600 |
| commit | 82e344ca09dbc3f168ee598749e751373161ce30 (patch) | |
| tree | fa5497649b0847e3ef8d1ca42a2129c25e2036ae | |
| parent | 2cd157755422a0317564af844e1886742cd2d4e7 (diff) | |
| download | coreutils-82e344ca09dbc3f168ee598749e751373161ce30.tar.gz | |
copy: allow symlink timestamp preservation on more systems
* src/copy.c (utimens_symlink): Simplify by using lutimens.
* m4/jm-macros.m4 (coreutils_MACROS): Drop utimensat; gnulib does
this for us.
* tests/cp/preserve-slink-time: Recognize lutimes support.
| -rw-r--r-- | m4/jm-macros.m4 | 3 | ||||
| -rw-r--r-- | src/copy.c | 10 | ||||
| -rwxr-xr-x | tests/cp/preserve-slink-time | 2 |
3 files changed, 3 insertions, 12 deletions
diff --git a/m4/jm-macros.m4 b/m4/jm-macros.m4 index f4d43f1dd..833940469 100644 --- a/m4/jm-macros.m4 +++ b/m4/jm-macros.m4 @@ -89,9 +89,6 @@ AC_DEFUN([coreutils_MACROS], tcgetpgrp \ ) - # for cp.c - AC_CHECK_FUNCS_ONCE([utimensat]) - dnl This can't use AC_REQUIRE; I'm not quite sure why. cu_PREREQ_STAT_PROG diff --git a/src/copy.c b/src/copy.c index 49e620afd..0a8b0e41d 100644 --- a/src/copy.c +++ b/src/copy.c @@ -123,20 +123,12 @@ static char const *top_level_dst_name; static inline int utimens_symlink (char const *file, struct timespec const *timespec) { - int err = 0; - -#if HAVE_UTIMENSAT - err = utimensat (AT_FDCWD, file, timespec, AT_SYMLINK_NOFOLLOW); + int err = lutimens (file, timespec); /* When configuring on a system with new headers and libraries, and running on one with a kernel that is old enough to lack the syscall, utimensat fails with ENOSYS. Ignore that. */ if (err && errno == ENOSYS) err = 0; -#else - (void) file; - (void) timespec; -#endif - return err; } diff --git a/tests/cp/preserve-slink-time b/tests/cp/preserve-slink-time index c5c21a5e1..407b77272 100755 --- a/tests/cp/preserve-slink-time +++ b/tests/cp/preserve-slink-time @@ -24,6 +24,7 @@ fi . $srcdir/test-lib.sh grep '^#define HAVE_UTIMENSAT' "$CONFIG_HEADER" > /dev/null || +grep '^#define HAVE_LUTIMES' "$CONFIG_HEADER" > /dev/null || skip_test_ 'this system lacks the utimensat function' ln -s no-such dangle || framework_failure @@ -34,6 +35,7 @@ case $(stat --format=%y dangle) in ??:??:??.000000000) sleep 2;; esac +# Can't use --format=%x, as lstat() modifies atime on some platforms. cp -Pp dangle d2 || framework_failure stat --format=%y dangle > t1 || framework_failure stat --format=%y d2 > t2 || framework_failure |