luit: Changes to 'master'

[Alan Coopersmith]

 Makefile.am  |    1 -
 configure.ac |   25 ++++++++-----------------
 2 files changed, 8 insertions(+), 18 deletions(-)

New commits:
commit e1f495359a74342352c4d6641c0002c7c79327ba
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sat Jul 13 09:15:16 2013 -0700

    Merge overlapping AC_CHECK_HEADERS & AC_CHECK_FUNCS calls into one set
    
    Duplication introduced when merging in changes in commit fddfe30c3ff91c
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
    Reviewed-by: Julien Cristau <jcristau at debian.org>
    Reviewed-by: Matthieu Herrb <matthieu.herrb at laas.fr>

commit 800f55f8dcd195dd0cdfc1c4d7487d00bb7745f4
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sat Jul 13 09:11:20 2013 -0700

    Replace hardcoded _XOPEN_SOURCE=500 with AC_USE_SYSTEM_EXTENSIONS
    
    -D_XOPEN_SOURCE was originally added for Linux in commit e751086392e837
    and then updated to -D_XOPEN_SOURCE=500 in commit e1a002217cabdb to
    expose strdup() in glibc headers.
    
    As noted in bug 47792 though, the posix_openpt() function is not
    visible unless that's raised to 600.
    
    Instead of continually chasing the standards ourselves, switch to letting
    autoconf handle that for us.
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
    Reviewed-by: Julien Cristau <jcristau at debian.org>
    Reviewed-by: Matthieu Herrb <matthieu.herrb at laas.fr>

commit 445863f8b5059692ac7a4df785af6920849faa82
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sat Jul 13 09:08:34 2013 -0700

    config: Add missing AC_CONFIG_SRCDIR
    
    Regroup AC statements under the Autoconf initialization section.
    Regroup AM statements under the Automake initialization section.
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
    Reviewed-by: Julien Cristau <jcristau at debian.org>
    Reviewed-by: Matthieu Herrb <matthieu.herrb at laas.fr>