stdioext: Add support for musl libc. * m4/fbufmode.m4 (gl_FUNC_FBUFMODE): Test whether __fbufsize exists. * lib/fbufmode.c (fbufmode): Add conditional code for musl. * m4/fseterr.m4: New file. * lib/fseterr.h (fseterr): Define as an alias of __fseterr if that function exists. * modules/fseterr (Files): Add m4/fseterr.m4. (configure.ac): Invoke gl_FUNC_FSETERR. Compile fseterr.c if __fseterr does not exist. (Makefile.am): Remove fseterr.c from lib_SOURCES. * lib/freadable.h: Update comment. * lib/fwritable.h: Update comment. * lib/freading.h: Update comment. * lib/fwriting.h: Update comment. * m4/freadahead.m4: New file. * lib/freadahead.h (freadahead): Define as an alias of __freadahead if that function exists. * modules/freadahead (Files): Add m4/freadahead.m4. (configure.ac): Invoke gl_FUNC_FREADAHEAD. Compile freadahead.c if __freadahead does not exist. (Makefile.am): Remove freadahead.c from lib_SOURCES. * m4/freadptr.m4: New file. * lib/freadptr.h (freadptr): Define as an alias of __freadptr if that function exists. * modules/freadptr (Files): Add m4/freadptr.m4. (configure.ac): Invoke gl_FUNC_FREADPTR. Compile freadptr.c if __freadptr does not exist. (Makefile.am): Remove freadptr.c from lib_SOURCES. * m4/freadseek.m4: New file. * lib/freadseek.c (freadptrinc): Use __freadptrinc if that function exists. * modules/freadseek (Files): Add m4/freadseek.m4. (configure.ac): Invoke gl_FUNC_FREADSEEK. * lib/fpurge.c (fpurge): Update comment. Reported by and with help from Rich Felker <dalias@aerifal.cx>.

Description:
Set file access and modification times of a file relative to a directory fd.

Files:
lib/utimensat.c
lib/at-func.c
m4/utimensat.m4

Depends-on:
sys_stat
extensions
at-internal     [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
dosname         [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
errno           [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
fchdir          [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
fcntl-h         [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
openat-die      [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
openat-h        [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
save-cwd        [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
utimens         [test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1]
fstatat         [test $REPLACE_UTIMENSAT = 1]

configure.ac:
gl_FUNC_UTIMENSAT
if test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1; then
  AC_LIBOBJ([utimensat])
fi
gl_SYS_STAT_MODULE_INDICATOR([utimensat])

Makefile.am:

Include:
<sys/stat.h>

Link:
$(LIB_CLOCK_GETTIME)

License:
GPL

Maintainer:
Eric Blake