PR target/14548
* config.host: Set the shell variable host_can_use_collect2.
Set it to yes by default, and to no for alpha*-dec-*vms*,
i[34567]86-*-mingw32*, and powerpc-*-beos*.
* configure.ac: Set and substitute the shell variable collect2.
Give an error if use_collect2 is yes and host_can_use_collect2 is
no.
* Makefile.in (COLLECT2): Rename from USE_COLLECT2. Change all
uses. Initialize to @collect2@.
(STAGESTUFF): Remove $(USE_COLLECT2).
* config/alpha/x-vms (USE_COLLECT2): Don't set.
* config/i386/t-mingw32 (USE_COLLECT2): Likewise.
* config/rs6000/t-beos (USE_COLLECT2): Likewise.
* config/pa/t-pa64: Remove commented out USE_COLLECT2.
* configure: Regenerate.
Co-Authored-By: Nathanael Nerode <neroden@gcc.gnu.org>
From-SVN: r80422
