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Diff for /src/usr.bin/m4/m4.1 between version 1.55 and 1.56

version 1.55, 2009/02/08 17:15:10 version 1.56, 2009/10/14 17:19:47
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 .Nd macro language processor  .Nd macro language processor
 .Sh SYNOPSIS  .Sh SYNOPSIS
 .Nm m4  .Nm m4
 .Op Fl gs  .Op Fl gPs
 .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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 .It Fl o Ar filename  .It Fl o Ar filename
 Send trace output to  Send trace output to
 .Ar filename .  .Ar filename .
   .It Fl P
   Prefix all built-in macros with
   .Sq m4_ .
   For example, instead of writing
   .Ic define ,
   use
   .Ic m4_define .
 .It Fl s  .It Fl s
 Output line synchronization directives, suitable for  Output line synchronization directives, suitable for
 .Xr cpp 1 .  .Xr cpp 1 .
Legend:
Removed from v.1.55  
changed lines
  Added in v.1.56