_BSD_COMPAT to get reliable signal handling (needed for GDBtk).
* Makefile.in, config/mips/xm-irix3.h, config/mips/xm-irix5.h, config/mips/xm-mips.h, config/mips/xm-news-mips.h, config/mips/xm-riscos.h: Remove references to xm-makeva.h