The generated gcc.1 man page contais a couple of weird texinfo artefacts,
I suppose the problem is in texi2pod.pl in most cases, but am not 100% sure.
1) @anchor{something} doesn't seem to be handled and makes it all the way
   through into the man page (should it be just nuked for the man page?)
   E.g. in:
       -Wtrigraphs
           @anchor{Wtrigraphs} Most trigraphs in comments cannot affect the meaning of the program.  However, a
2) @pxref{something} makes it all the way through into the man page too
   E.g. in:
       -Wno-deprecated-declarations
           Do not warn about uses of functions, variables, and types marked as deprecated by using the "deprecated"
           attribute.  (@pxref{Function Attributes}, @pxref{Variable Attributes}, @pxref{Type Attributes}.)
3) @item is only handled at the beginning of line, so we have
            @item max-inline-insns-single
             is set to I<n>/2.
            @item max-inline-insns-auto
             is set to I<n>/2.
            @item min-inline-insns
             is set to 130 or I<n>/4, whichever is smaller.
            @item max-inline-insns-rtl
             is set to I<n>.
   Perhaps this should be solved by removing the spaces in invoke.texi.
4) @samp{@@} in the texi source is transformed weirdly:
@samp{;}, and each switch starts with an @samp{@@} instead of the
@samp{-}, without spaces between multiple switches.  This is supposed to
ease shell-processing.
becomes in gcc.pod:
B<;>, and each switch starts with an B<@} instead of the
@samp{->, without spaces between multiple switches.  This is supposed to
ease shell-processing.