Link Time Optimization.

[teqguru]

I am trying to build a lto and gloog capable version of gcc. I first compiled
gcc with-libelf and enable-lto, but the resulting binary doesn't seem to
understand -flto. Any ideas?.

../gcc-4.4.3/configure --target=arm-elf --disable-nls --with-gcc
--with-dwarf2 --with-libelf=/usr/local/ --with-mpfr=/usr/local/
--with-gmp=/usr/local/ --enable-lto --enable-languages=c,c++
--enable-interwork --enable-multilib --with-newlib
--with-headers=../newlib-1.17.0-base/newlib/libc/include/
--disable-libstdcxx-pch && make -j2

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