* macrocmd.c (info_macro_command): Print -Dname=value if LINE is zero.
gdb/doc/
* gdb.texinfo (Macros): Note command-line for `info macro'. Append
a new part on command-line defined macros.
gdb/testsuite/
* gdb.base/macscp.exp: New `options' parameter `-DFROM_COMMANDLINE'.
(info_macro): Remova `decimal' declaration. New variable `nonzero'.
Replace all uses of `decimal' by `nonzero'.
(info macro FROM_COMMANDLINE): New test.