* SConstruct: pass -Wl, options correctly
* scons_utils.py: find boost libraries with more complex names
* qt4.py: fix a bug regarding the use of pkg_config
* src/SConscript: build a static library for src/*
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13808 a592a061-630c-0410-9148-cb99ea01b6c8