For Autoheader: Macro redefinition warnings

[Reed Hedges]

In projects that end up using several "config.h" headers (created by 
several autoconf scripts, with different names), there are lots of 
annoying warnings about some of the default symbols being redefined, 
namely PACKAGE.

I tried this:

AH_TOP(
#ifdef PACKAGE
#undef PACKAGE
#endif
)

but of course autoheader turns the #undef into #define !!

Is there a correct way to get around this?

If not, then can autoheader be fixed to conditionally define PACKAGE 
and friends, or to really undefine it first?

reed