Joe Buck <Joe.Buck@synopsys.COM> writes:
On Tue, May 18, 2004 at 07:54:08PM -0700, Zack Weinberg wrote:
We currently have three ways of changing the object-file name of a
variable or function. They are __asm__("foo") tacked on the end of
the declaration; #pragma redefine_extname; #pragma extern_prefix.
Who is using this feature now? (That is, which well-known programs?
glibc?).
Which of the three ways is most commonly used?
That matters because any simplifications that are made should try to
break
as little as possible.
#pragma redefine_extname appears in Solaris system headers. Support
for it is required to compile programs on Solaris. For example, see
http://gcc.gnu.org/ml/gcc-patches/2001-11/msg01966.html
although a different patch was later adopted.
I presume from the documentation that #pragma extern_prefix appears in
Tru64 system headers, but I don't know that from direct observation.
I hope that neither #pragma is used anywhere else.