sane-toolchain-eglibc: use -O2 for qt4-x11-free and libsyncml (needed for gcc-4.4)
sane-toolchain-eglibc: use -O2 for qt4-x11-free and libsyncml (needed for gcc-4.4)

* I'll report gcc bug upstream as soon as I prepare simplier test-case

Signed-off-by: Martin Jansa <516df3ff67e1fa5d153800b15fb204c0a1a389dc@gmail.com>

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