/usr/local/src/llvm/include/Config/alloca.h:42:17:#error "The function alloca()

Hi John,

In my setup OBJDIR is SRCDIR. I'm looking at the config.h and not config.h.in.

Yes, defining HAVE_ALLOCA_H to 1 fixed the compilation. Moreover, I also defined HAVE_ALLOCA to 1 in the config.h: