patch to check ld

[Gabriel Dos Reis]

Benjamin Kosnik <bkoz@redhat.com> writes:

| > Shouldn't that go into the specs?  That seems to me to be the right
| > place to do that sort of black magic instead of requiring users to
| > manually play with that tricky flag, IMHO.
| 
| The precedent has already been set with -Wl,--gc-sections and such. 
| 
| In effect, libstdc++-v3 is setting linker flags that it notices are 
| available, and activating them if they are helpful or advantageous for 
| c++ libraries. 
| 
| IMHO, these flags should be the default in the linker itself, but they are 
| currently not.

I'm glad to see we agree on this.  We need opinions from the linker
experts on gcc.

Jeff, Mark?

-- Gaby