m4 ChangeLog NEWS checks/get-them doc/m4.texinf... [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      07/01/28 01:54:44

Modified files:
        .              : ChangeLog NEWS 
        checks         : get-them 
        doc            : m4.texinfo 
        src            : builtin.c input.c m4.c m4.h 

Log message:
        * src/m4.h (warn_syntax): Declare.
        (init_pattern_buffer): Export.
        * src/m4.c (warn_syntax, usage, WARN_SYNTAX_OPTIONS)
        (long_options, main): Implement new option.
        * src/builtin.c (init_pattern_buffer): Allow NULL regs argument.
        (define_user_macro): Warn on $11 and ${1} if requested.
        * src/input.c (init_pattern_buffer): Delete duplicate method.
        * doc/m4.texinfo (Operation modes): Document it.
        (Arguments): Document future direction of ${11} vs. $11.
        (Incompatibilities): Fix wording on POSIX limitations.
        * checks/get-them: Parse @{ and @} correctly.
        * NEWS: Document this change.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/m4/ChangeLog?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.238&r2=1.1.1.1.2.239
http://cvs.savannah.gnu.org/viewcvs/m4/NEWS?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.90&r2=1.1.1.1.2.91
http://cvs.savannah.gnu.org/viewcvs/m4/checks/get-them?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.8&r2=1.1.1.1.2.9
http://cvs.savannah.gnu.org/viewcvs/m4/doc/m4.texinfo?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.108&r2=1.1.1.1.2.109
http://cvs.savannah.gnu.org/viewcvs/m4/src/builtin.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.55&r2=1.1.1.1.2.56
http://cvs.savannah.gnu.org/viewcvs/m4/src/input.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.32&r2=1.1.1.1.2.33
http://cvs.savannah.gnu.org/viewcvs/m4/src/m4.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.41&r2=1.1.1.1.2.42
http://cvs.savannah.gnu.org/viewcvs/m4/src/m4.h?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.36&r2=1.1.1.1.2.37