You use the tool that works better, bootstrapping a system clang isn't exactly impossible (see FreeBSD) yet has some pitfalls. Bootstrapping gcc as system compiler and libstdc++ is/was more straightforward.
Posted Dec 26, 2012 13:40 UTC (Wed) by CopperWing (guest, #82856)
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I was not complaining about your choice, just found quite contradictory the reason you gave for it.
I build quite often the arm-linux-gnueabi GCC cross-compiler and a Linux root file system for my work, and after the switch to C++ I didn't find any issue in doing that. It's neither more nor less straightforward than before, just the same.
Conversely if you plan to rebuild the Linux kernel with llvm/clang, be prepared to get some headaches. Last time I checked, some components still needed to be recompiled with GCC and the resulting kernel was not at all stable.
So, for real work on Linux, GCC is still the only choice. Until someone volunteers to improve the situation (FreeBSD with clang didn't came exactly for free).