-fwhopr=jobserver requires telling GNU make that the linker (= lto)
rules support job server, so that the necessary jobserver
information is passed through.
Add + to all the executable targets that run LTO for this purpose.
This improves build performance with a -fwhopr=jobserver
bootstrap (or BUILD_CONFIG=bootstrap-lto) significantly.
I didn't change Ada because that apparently doesn't support LTO.
Passes bootstrap and test suite. Ok to commit?
gcc/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Makefile.in (xgcc, cpp, cc1, collect2, lto-wrapper, gcov,
gcov-dump, cc1-dummy, genprog, build/gcov-iov):
Add + to build rule.
gcc/cp/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (g++, cc1plus): Add + to build rule.
gcc/fortran/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (gfortran, f951): Add + to build rule.
gcc/java/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (xgcj, jc1, jcf-dump, jvgenmain):
Add + to build rule.
gcc/lto/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (lto1): Add + to build rule.
gcc/objc/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (cc1obj-dummy, cc1obj): Add + to build rule.
gcc/objcp/
2010-10-04 Andi Kleen <ak@linux.intel.com>
* Make-lang.in (cc1objplus-dummy, cc1objplus): Add + to build rule.
More plus fixes
From-SVN: r164949
