master updated (42d5826 -> 2c79a8f)

[Philipp Stephani]

phst pushed a change to branch master.

      from  42d5826   Update Gnulib.
       new  3ba3414   Import posix_spawn from Gnulib.
       new  2c79a8f   Use posix_spawn if possible.


Summary of changes:
 .gitignore                                     |   2 +
 admin/merge-gnulib                             |   9 +-
 lib/gnulib.mk.in                               | 302 ++++++++
 lib/sched.in.h                                 |  99 +++
 lib/{strtoll.c => spawn.c}                     |  31 +-
 lib/spawn.in.h                                 | 974 +++++++++++++++++++++++++
 lib/spawn_faction_addchdir.c                   |  70 ++
 lib/spawn_faction_adddup2.c                    |  70 ++
 lib/spawn_faction_destroy.c                    |  61 ++
 lib/spawn_faction_init.c                       |  56 ++
 lib/spawn_int.h                                |  72 ++
 lib/{free.c => spawnattr_destroy.c}            |  23 +-
 lib/{strtoll.c => spawnattr_init.c}            |  28 +-
 lib/{strtoll.c => spawnattr_setdefault.c}      |  28 +-
 lib/spawnattr_setflags.c                       |  45 ++
 lib/{free.c => spawnattr_setpgroup.c}          |  25 +-
 lib/{strtoll.c => spawnattr_setsigmask.c}      |  28 +-
 lib/spawni.c                                   | 349 +++++++++
 lib/{rawmemchr.c => strchrnul.c}               |  46 +-
 lib/{rawmemchr.valgrind => strchrnul.valgrind} |  10 +-
 m4/gnulib-comp.m4                              | 144 ++++
 m4/posix_spawn.m4                              | 678 +++++++++++++++++
 m4/posix_spawn_faction_addchdir.m4             |  20 +
 m4/sched_h.m4                                  |  91 +++
 m4/sh-filename.m4                              |  22 +
 m4/spawn_h.m4                                  | 136 ++++
 m4/strchrnul.m4                                |  50 ++
 src/Makefile.in                                |   4 +-
 src/callproc.c                                 | 148 +++-
 29 files changed, 3509 insertions(+), 112 deletions(-)
 create mode 100644 lib/sched.in.h
 copy lib/{strtoll.c => spawn.c} (51%)
 create mode 100644 lib/spawn.in.h
 create mode 100644 lib/spawn_faction_addchdir.c
 create mode 100644 lib/spawn_faction_adddup2.c
 create mode 100644 lib/spawn_faction_destroy.c
 create mode 100644 lib/spawn_faction_init.c
 create mode 100644 lib/spawn_int.h
 copy lib/{free.c => spawnattr_destroy.c} (67%)
 copy lib/{strtoll.c => spawnattr_init.c} (62%)
 copy lib/{strtoll.c => spawnattr_setdefault.c} (59%)
 create mode 100644 lib/spawnattr_setflags.c
 copy lib/{free.c => spawnattr_setpgroup.c} (64%)
 copy lib/{strtoll.c => spawnattr_setsigmask.c} (61%)
 create mode 100644 lib/spawni.c
 copy lib/{rawmemchr.c => strchrnul.c} (76%)
 copy lib/{rawmemchr.valgrind => strchrnul.valgrind} (90%)
 create mode 100644 m4/posix_spawn.m4
 create mode 100644 m4/posix_spawn_faction_addchdir.m4
 create mode 100644 m4/sched_h.m4
 create mode 100644 m4/sh-filename.m4
 create mode 100644 m4/spawn_h.m4
 create mode 100644 m4/strchrnul.m4