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Diff for /src/usr.bin/m4/m4.1 between version 1.63 and 1.64

version 1.63, 2015/09/14 20:06:58 version 1.64, 2017/06/15 13:48:42
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 .Nd macro language processor  .Nd macro language processor
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm  .Nm
 .Op Fl gPs  .Op Fl EgPs
 .Oo  .Oo
 .Sm off  .Sm off
 .Fl D Ar name Op No = Ar value  .Fl D Ar name Op No = Ar value
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 .Pp  .Pp
 By default, trace is set to  By default, trace is set to
 .Qq eq .  .Qq eq .
   .It Fl E
   Set warnings to be fatal.
   When a single
   .Fl E
   flag is specified, if warnings are issued, execution continues but
   .Nm
   will exit with a non-zero exit status.
   When multiple
   .Fl E
   flags are specified, execution will halt upon issuing the first warning and
   .Nm
   will exit with a non-zero exit status.
   This behaviour matches GNU-m4 1.4.9 and later.
 .It Fl g  .It Fl g
 Activate GNU-m4 compatibility mode.  Activate GNU-m4 compatibility mode.
 In this mode, translit handles simple character  In this mode, translit handles simple character
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 .Pp  .Pp
 But note that the  But note that the
 .Ic m4exit  .Ic m4exit
 macro can modify the exit status.  macro can modify the exit status, as can the
   .Fl E
   flag.
 .Sh STANDARDS  .Sh STANDARDS
 The  The
 .Nm  .Nm
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 specification.  specification.
 .Pp  .Pp
 The flags  The flags
 .Op Fl dgIPot  .Op Fl dEgIPot
 and the macros  and the macros
 .Ic builtin ,  .Ic builtin ,
 .Ic esyscmd ,  .Ic esyscmd ,
Legend:
Removed from v.1.63  
changed lines
  Added in v.1.64