gcc: * config/alpha/linux.h (MD_UNWIND_SUPPORT): Remove. * config/alpha/osf5.h (MD_UNWIND_SUPPORT): Remove. * config/alpha/vms.h (MD_UNWIND_SUPPORT): Remove. * config/bfin/linux.h (MD_UNWIND_SUPPORT): Remove. * config/bfin/uclinux.h (MD_UNWIND_SUPPORT): Remove. * config/i386/linux.h (MD_UNWIND_SUPPORT): Remove. * config/i386/linux64.h (MD_UNWIND_SUPPORT): Remove. * config/i386/sol2.h (MD_UNWIND_SUPPORT): Remove. * config/i386/mingw32.h (MD_UNWIND_SUPPORT): Remove. * config/ia64/linux.h (MD_UNWIND_SUPPORT): Remove. * config/ia64/vms.h (MD_UNWIND_SUPPORT): Remove. * config/m68k/linux.h (MD_UNWIND_SUPPORT): Remove. * config/mips/linux.h (MD_UNWIND_SUPPORT): Remove. * config/pa/pa-hpux.h (MD_UNWIND_SUPPORT): Remove. * config/pa/pa32-linux.h (MD_UNWIND_SUPPORT): Remove. * config/rs6000/darwin.h (MD_UNWIND_SUPPORT): Remove. * config/rs6000/linux.h (MD_UNWIND_SUPPORT): Remove. * config/rs6000/linux64.h (MD_UNWIND_SUPPORT): Remove. * config/s390/linux.h (MD_UNWIND_SUPPORT): Remove. * config/s390/tpf.h (MD_UNWIND_SUPPORT): Remove. * config/sh/linux.h (MD_UNWIND_SUPPORT): Remove. * config/sparc/linux.h (MD_UNWIND_SUPPORT): Remove. * config/sparc/linux64.h (MD_UNWIND_SUPPORT): Remove. * config/sparc/sol2.h (MD_UNWIND_SUPPORT): Remove. * config/xtensa/linux.h (MD_UNWIND_SUPPORT): Remove. * config/alpha/linux-unwind.h: Move to ../libgcc/config/alpha. * config/alpha/osf5-unwind.h: Move to ../libgcc/config/alpha. * config/alpha/vms-unwind.h: Move to ../libgcc/config/alpha. * config/bfin/linux-unwind.h: Move to ../libgcc/config/bfin. * config/i386/linux-unwind.h: Move to ../libgcc/config/i386. * config/i386/sol2-unwind.h: Move to ../libgcc/config/i386. * config/i386/w32-unwind.h: Move to ../libgcc/config/i386. * config/ia64/linux-unwind.h: Move to ../libgcc/config/ia64. * config/ia64/vms-unwind.h: Move to ../libgcc/config/ia64. * config/m68k/linux-unwind.h: Move to ../libgcc/config/m68k. * config/mips/linux-unwind.h: Move to ../libgcc/config/mips. * config/pa/hpux-unwind.h: Move to ../libgcc/config/pa. * config/pa/linux-unwind.h: Move to ../libgcc/config/pa. * config/rs6000/darwin-unwind.h: Move to ../libgcc/config/rs6000. * config/rs6000/linux-unwind.h: Move to ../libgcc/config/rs6000. * config/s390/linux-unwind.h: Move to ../libgcc/config/s390. * config/s390/tpf-unwind.h: Move to ../libgcc/config/s390. * config/sh/linux-unwind.h: Move to ../libgcc/config/sh. * config/sparc/linux-unwind.h: Move to ../libgcc/config/sparc. * config/sparc/sol2-unwind.h: Move to ../libgcc/config/sparc. * config/xtensa/linux-unwind.h: Move to ../libgcc/config/xtensa. * config/darwin9.h (DARWIN_LIBSYSTEM_HAS_UNWIND): Remove. * system.h (MD_UNWIND_SUPPORT): Poison. * doc/tm.texi.in (Exception Handling, MD_UNWIND_SUPPORT): Remove. * doc/tm.texi: Regenerate. * unwind-dw2.c: Include md-unwind-support.h instead of MD_UNWIND_SUPPORT. * config/ia64/unwind-ia64.c: Likewise. * config/xtensa/unwind-dw2-xtensa.c: Likewise. libgcc: * config/alpha/linux-unwind.h: Move from ../gcc/config/alpha. * config/alpha/osf5-unwind.h: Move from ../gcc/config/alpha. * config/alpha/vms-unwind.h: Move from ../gcc/config/alpha. * config/bfin/linux-unwind.h: Move from ../gcc/config/bfin. * config/i386/linux-unwind.h: Move from ../gcc/config/i386. * config/i386/sol2-unwind.h: Move from ../gcc/config/i386. * config/i386/w32-unwind.h: Move from ../gcc/config/i386. Wrap in !__MINGW64__. * config/ia64/linux-unwind.h: Move from ../gcc/config/ia64. * config/ia64/vms-unwind.h: Move from ../gcc/config/ia64. * config/m68k/linux-unwind.h: Move from ../gcc/config/m68k. * config/mips/linux-unwind.h: Move from ../gcc/config/mips. * config/pa/hpux-unwind.h: Move from ../gcc/config/pa. * config/pa/linux-unwind.h: Move from ../gcc/config/pa. * config/rs6000/darwin-unwind.h: Move from ../gcc/config/rs6000. Wrap in !__LP64__. * config/rs6000/linux-unwind.h: Move from ../gcc/config/rs6000. * config/s390/linux-unwind.h: Move from ../gcc/config/s390. * config/s390/tpf-unwind.h: Move from ../gcc/config/s390. * config/sh/linux-unwind.h: Move from ../gcc/config/sh. * config/sparc/linux-unwind.h: Move from ../gcc/config/sparc. * config/sparc/sol2-unwind.h: Move from ../gcc/config/sparc. * config/xtensa/linux-unwind.h: Move from ../gcc/config/xtensa. * config/no-unwind.h: New file. * config.host (md_unwind_header): Document. Define. (alpha*-*-linux*, alpha*-dec-osf5.1*, alpha64-dec-*vms*, alpha*-dec-*vms*, bfin*-uclinux*, bfin*-linux-uclibc*, hppa*-*-linux*, hppa[12]*-*-hpux10*, hppa*64*-*-hpux11*, hppa[12]*-*-hpux11*): Set md_unwind_header. (i[34567]86-*-linux*): Handle i[34567]86-*-kopensolaris*-gnu. Set md_unwind_header. (x86_64-*-linux*, i[34567]86-*-solaris2*): Set md_unwind_header. (i[34567]86-*-cygwin*): Split from i[34567]86-*-mingw*. (i[34567]86-*-mingw*, ia64*-*-linux*, ia64-hp-*vms*, m68k-*-uclinux*, m68k-*-linux*, mips64*-*-linux*, mips*-*-linux*, powerpc-*-darwin*, powerpc-*-linux*, s390-*-linux*, s390x-*-linux*, s390x-ibm-tpf*, sh*-*-linux*, sparc-*-linux*, sparc*-*-solaris2*, sparc64-*-linux*, xtensa*-*-linux*): Set md_unwind_header. * configure.ac: Link md-unwind-support.h to $md_unwind_header. * configure: Regenerate. From-SVN: r174613
