Re: Subsystem initialization functions in normal binary

[Paul Eggert]

I'm of two minds about this.  On the one hand, it simplifies the C source code 
and makes 'emacs' a tad smaller.  On the other, it's a bit tricky and I worry 
about how portable it is.  Suppose, for example, GCC supports __attribute__ 
((section (".once"))) but 'strip' does not support -R?

Is it possible for unexelf.c to do the strip, rather than to rely on an external 
'strip -R' command?

If we use the idea, it might be helpful to use '#define ATTRIBUTE_SECTION_ONCE 
__attribute__ ((section (".once")))' (or '#define ATTRIBUTE_SECTION_ONCE /* 
empty */' on hosts that don't support the attribute), and then use 
ATTRIBUTE_SECTION_ONCE elsewhere.