[committed] cleanups to config.host

Nathanael Nerode neroden@twcny.rr.com
Tue Sep 23 19:17:00 GMT 2003


This is the net of several patches I already posted.  They got no negative
comments and seem to be uncontroversial, so I'm committing this to ease
my backlog.  DJ, Alex, if you strongly disagree with part of this, I'll
be happy to back it out.

	* config.host: Allow unknown hosts (not targets).  Allow
	ns32k-*-netbsdelf* as a host (not a target).  Remove redundant
	empty clauses.  Remove useless obsolete-configuration clause.
	Prune unsupported configuration list.  Collapse identical 
	clauses for closely related systems.  Rewrite comment for
	unsupported hosts list.  Reorganize a little.

Index: config.host
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config.host,v
retrieving revision 2.2
diff -u -r2.2 config.host
--- config.host	19 Sep 2003 19:46:06 -0000	2.2
+++ config.host	23 Sep 2003 18:42:34 -0000
@@ -63,40 +63,14 @@
 host_extra_gcc_objs=
 out_host_hook_obj=host-default.o
 
-# Obsolete configurations.
+# Unsupported hosts list.  Generally, only include hosts known to fail here,
+# since we allow hosts not listed to be supported generically.
 case ${host} in
- dummy)
-    if test "x$enable_obsolete" != xyes; then
-      echo "*** Configuration for host ${host} is obsolete." >&2
-      echo "*** Specify --enable-obsolete to build it anyway." >&2
-      echo "*** Support will be REMOVED in the next major release of GCC," >&2
-      echo "*** unless a maintainer comes forward." >&2
-      exit 1
-    fi
-    ;;
-esac
-
-# Unsupported hosts list.  Do not put an entry in this list unless
-# it would otherwise be caught by a more permissive pattern.  The list
-# should be in alphabetical order.
-case ${host} in
-   alpha*-*-linux*libc1* \
- | i[34567]86-sequent-sysv \
+   i[34567]86-sequent-sysv \
  | i[34567]86-sequent-sysv[123]* \
  | i[34567]86-go32-* \
  | i[34567]86-*-go32* \
- | m68k-*-linux*aout* \
- | m68k-*-linux*libc1* \
- | mips64orion*-*-rtems* \
- | powerpc-*-linux*libc1* \
- | sparc-*-linux*aout* \
- | sparc-*-linux*libc1* \
- | sparc-hal-solaris2* \
- | thumb-*-* \
- | *-*-linux*coff* \
- | *-*-linux*oldld* \
- | *-*-rtemsaout* \
- | *-*-rtemscoff* \
+ | vax-*-vms*
  )
     echo "*** Configuration for host ${host} not supported" 1>&2
     exit 1
@@ -105,20 +79,6 @@
 
 # Machine-specific settings.
 case ${host} in
-  alpha*-*-unicosmk*)
-    ;;
-  alpha*-*-linux*)
-    ;;
-  alpha*-*-gnu*)
-    ;;
-  alpha*-*-freebsd*)
-    ;;
-  alpha*-*-netbsd*)
-    ;;
-  alpha*-*-openbsd*)
-    ;;
-  alpha*-dec-osf[45]*)
-    ;;
   alpha*-dec-*vms*)
     host_xm_file=alpha/xm-vms.h
     host_xmake_file=alpha/x-vms
@@ -129,67 +89,6 @@
     prefix=/gnu
     local_prefix=/gnu
     ;;
-  arc-*-elf*)
-    ;;
-  arm-*-coff* | armel-*-coff*)
-    ;;
-  arm-semi-aof | armel-semi-aof)
-    ;;
-  arm*-*-freebsd*|strongarm*-*-freebsd*)
-    ;;
-  arm*-*-netbsdelf*)
-    ;;
-  arm*-*-netbsd*)
-    ;;
-  arm*-*-linux*) # ARM GNU/Linux with ELF
-    ;;
-  arm*-*-uclinux*) # ARM ucLinux
-    ;;
-  arm*-*-ecos-elf)
-    ;;
-  arm*-*-rtems*)
-    ;;
-  arm*-*-elf | ep9312-*-elf)
-    ;;
-  arm*-wince-pe*)
-    ;;
-  arm-*-pe*)
-    ;;
-  arm*-*-kaos*)
-    ;;
-  avr-*-*)
-    ;;
-  c4x-*-rtems* | tic4x-*-rtems*)
-    ;;
-  c4x-* | tic4x-*)
-    ;;
-  cris-*-aout)
-    ;;
-  cris-*-elf | cris-*-none)
-    ;;
-  cris-*-linux*)
-    ;;
-  d30v-*)
-    ;;
-  dsp16xx-*)
-    ;;
-  fr30-*-elf)
-    ;;
-  frv-*-elf)
-    ;;
-  h8300-*-rtems*)
-    ;;
-  h8300-*-elf*)
-    ;;
-  h8300-*-*)
-    ;;
-  hppa*64*-*-linux* | parisc*64*-*-linux*)
-    ;;
-  hppa*-*-linux* | parisc*-*-linux*)
-    ;;
-#  port not yet contributed.
-#  hppa*-*-openbsd*)
-#    ;;
   hppa1.1-*-pro*)
     host_xmake_file="pa/x-ada"
     ;;
@@ -202,74 +101,22 @@
   hppa1.1-*-bsd*)
     host_xmake_file="pa/x-ada"
     ;;
-  hppa1.1-*-hpux10* | hppa2*-*-hpux10*)
-    host_xmake_file="pa/x-ada"
-    ;;
-  hppa1.0-*-hpux10*)
-    host_xmake_file="pa/x-ada"
-    ;;
+  hppa1.0-*-hpux10* | hppa1.1-*-hpux10* | hppa2*-*-hpux10* | \
+  hppa1.0-*-hpux11* | hppa1.1-*-hpux11* | hppa2*-*-hpux11* | \
   hppa*64*-*-hpux11*)
     host_xmake_file="pa/x-ada"
     ;;
-  hppa1.1-*-hpux11* | hppa2*-*-hpux11*)
-    host_xmake_file="pa/x-ada"
-    ;;
-  hppa1.0-*-hpux11*)
-    host_xmake_file="pa/x-ada"
-    ;;
-  i370-*-opened*) # IBM 360/370/390 Architecture
+  i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
     host_xm_defines='FATAL_EXIT_CODE=12'
     ;;
-  i370-*-mvs*)
-    host_xm_defines='FATAL_EXIT_CODE=12'
-    ;;
-  i370-*-linux*)
-    ;;
-  i[34567]86-*-darwin*)
-    ;;
-  i[34567]86-*-elf*)
-    ;;
-  i[34567]86-ncr-sysv4*) # NCR 3000 - ix86 running system V.4
+  i[34567]86-sequent-ptx4*)
     host_xm_defines="SMALL_ARG_MAX"
     ;;
-  i[34567]86-*-netware) # Intel 80386's running netware
-    ;;
-  i[34567]86-sequent-ptx4* | i[34567]86-sequent-sysv4*)
+  i[34567]86-*-solaris2*)
     host_xm_defines="SMALL_ARG_MAX"
     ;;
-  i[34567]86-*-aout*)
-    ;;
-  i[34567]86-*-beoself* | i[34567]86-*-beos*)
-    ;;
-  i[34567]86-*-freebsd2 | i[34567]86-*-freebsd2.* | i[34567]86-*-freebsd*aout*)
-    ;;
-  i[34567]86-*-freebsd*)
-    ;;
-  x86_64-*-freebsd*)
-    ;;
-  i[34567]86-*-netbsdelf*)
-    ;;
-  i[34567]86-*-netbsd*)
-    ;;
-  x86_64-*-netbsd*)
-    ;;
-  i[34567]86-*-openbsd*)
-    ;;
-  i[34567]86-*-coff*)
-    ;;
-  i[34567]86-*-linux*aout*) # Intel 80386's running GNU/Linux with a.out format
-    ;;
-  i[34567]86-*-linux*libc1) # Intel 80386's running GNU/Linux
-                            # with ELF format using the
-                            # GNU/Linux C library 5
-    ;;
-  i[34567]86-*-linux*) # Intel 80386's running GNU/Linux
-                       # with ELF format using glibc 2
-                       # aka GNU/Linux C library 6
-    ;;
-  x86_64-*-linux*)
-    ;;
-  i[34567]86-*-gnu*)
+  i[34567]86-*-sysv4*) # Intel 80386's running System V Release 4
+    host_xm_defines="SMALL_ARG_MAX"
     ;;
   i[34567]86-pc-msdosdjgpp*)
     host_xm_file=i386/xm-djgpp.h
@@ -281,32 +128,6 @@
         ;;
     esac
     ;;
-  i[34567]86-moss-msdos* | i[34567]86-*-moss*)
-    ;;
-  i[34567]86-*-lynxos*)
-    ;;
-  i[34567]86-*-mach*)
-    ;;
-  i[34567]86-*-nto-qnx*)
-    ;;
-  i[34567]86-*-rtems*)
-    ;;
-  i[34567]86-*-sco3.2v5*) # 80386 running SCO Open Server 5
-    ;;
-  i[34567]86-*-solaris2*)
-    host_xm_defines="SMALL_ARG_MAX"
-    ;;
-  i[34567]86-*-sysv5*) # Intel x86 on System V Release 5
-    ;;
-  i[34567]86-*-sysv4*) # Intel 80386's running System V Release 4
-    host_xm_defines="SMALL_ARG_MAX"
-    ;;
-  i[34567]86-*-udk*) # Intel x86 on SCO UW/OSR5 Dev Kit
-    ;;
-  i[34567]86-*-sysv*) # Intel 80386's running System V
-    ;;
-  i386-*-vsta) # Intel 80386's running VSTa kernel
-    ;;
   i[34567]86-*-pe | i[34567]86-*-cygwin*)
     host_xm_file=i386/xm-cygwin.h
     host_exeext=.exe
@@ -322,289 +143,18 @@
   i[34567]86-*-interix3*)
     host_xmake_file="x-interix"
     ;;
-  i[34567]86-*-interix*)
-    ;;
-  i[34567]86-*-kaos*)
-    ;;
   i860-*-sysv4*)
     host_xmake_file=i860/x-sysv4
     ;;
-  i960-*-coff*)
-    ;;
-  i960-*-rtems)
-    ;;
-  i960-*-*) # Default i960 environment.
-    ;;
-  ia64*-*-elf*)
-    ;;
-  ia64*-*-freebsd*)
-    ;;
-  ia64*-*-linux*)
-    ;;
-  ia64*-*-hpux*)
-    ;;
-  ip2k-*-elf)
-    ;;
-  iq2000*-*-elf*)
-    ;;
-  m32r-*-elf*)
-    ;;
-  # m68hc11 and m68hc12 share the same machine description.
-  m68hc11-*-*|m6811-*-*)
-    ;;
-  m68hc12-*-*|m6812-*-*)
-    ;;
-  m68000-hp-hpux*) # HP 9000 series 300
-    ;;
-  m68k-hp-hpux7*) # HP 9000 series 300 running HPUX version 7.
-    ;;
-  m68k-hp-hpux*) # HP 9000 series 300
-    ;;
-  m68k-*-aout*)
-    ;;
-  m68k-*-coff*)
-    ;;
-  m68020-*-elf* | m68k-*-elf*)
-    ;;
-  m68010-*-netbsdelf* | m68k*-*-netbsdelf*)
-    ;;
-  m68k*-*-netbsd*)
-    ;;
-  m68k*-*-openbsd*)
-    ;;
-  m68k-*-sysv4*) # Motorola m68k's running system V r4
-    ;;
-  m68k-*-linux*) # Motorola m68k's running GNU/Linux
-                 # with ELF format using glibc 2
-                 # aka the GNU/Linux C library 6.
-    ;;
-  m68k-*-rtems*)
-    ;;
-  mcore-*-elf)
-    ;;
-  mcore-*-pe*)
-    ;;
   mips-sgi-irix6*o32) # SGI System V.4., IRIX 6, O32 ABI
     host_xm_file=mips/xm-iris5.h
     ;;
-  mips-sgi-irix6*) # SGI System V.4., IRIX 6
-    ;;
-  mips-sgi-irix5cross64) # Irix5 host, Irix 6 target, cross64
-    host_xm_file=mips/xm-iris5.h
-    ;;
   mips-sgi-irix5*) # SGI System V.4., IRIX 5
     host_xm_file=mips/xm-iris5.h
     ;;
-  mips*-*-netbsd*) # NetBSD/mips, either endian.
-    ;;
-  mips64*-*-linux*)
-    ;;
-  mips*-*-linux*) # Linux MIPS, either endian.
-    ;;
-  mips*-*-openbsd*)
-    ;;
-  mipsisa32-*-elf* | mipsisa32el-*-elf*)
-    ;;
-  mipsisa32r2-*-elf* | mipsisa32r2el-*-elf*)
-    ;;
-  mipsisa64-*-elf* | mipsisa64el-*-elf*)
-    ;;
-  mipsisa64sr71k-*-elf*)
-    ;;
-  mipsisa64sb1-*-elf* | mipsisa64sb1el-*-elf*)
-    ;;
-  mips-*-elf* | mipsel-*-elf*)
-    ;;
-  mips64-*-elf* | mips64el-*-elf*)
-    ;;
-  mips64vr-*-elf* | mips64vrel-*-elf*)
-    ;;
-  mips64orion-*-elf* | mips64orionel-*-elf*)
-    ;;
-  mips*-*-rtems*)
-    ;;
-  mipstx39-*-elf* | mipstx39el-*-elf*)
-    ;;
-  mmix-knuth-mmixware)
-    ;;
-  mn10300-*-*)
-    ;;
-  ns32k-*-netbsdelf*)
-    echo "GCC does not yet support the ${host} host"; exit 1
-    ;;
-  ns32k-*-netbsd*)
-    ;;
-  pdp11-*-bsd)
-    ;;
-  pdp11-*-*)
-    ;;
-  avr-*-*)
-    ;;
-#  port not yet contributed
-#  powerpc-*-openbsd*)
-#    ;;
-  powerpc64-*-linux*)
-    ;;
-  powerpc64-*-gnu*)
-    ;;
-  powerpc-*-beos*)
-    ;;
   powerpc-*-darwin*)
     # powerpc-darwin host support.
     out_host_hook_obj=host-darwin.o
     host_xmake_file=rs6000/x-darwin
-    ;;
-  powerpc*-*-freebsd*)
-    ;;
-  powerpc-*-netbsd*)
-    ;;
-  powerpc-*-chorusos*)
-    ;;
-  powerpc-*-eabispe*)
-    ;;
-  powerpc-*-eabisimaltivec*)
-    ;;
-  powerpc-*-eabisim*)
-    ;;
-  powerpc-*-elf*)
-    ;;
-  powerpc-*-eabialtivec*)
-    ;;
-  powerpc-*-eabi*)
-    ;;
-  powerpc-*-rtems*)
-    ;;
-  powerpc-*-linux*altivec*)
-    ;;
-  powerpc-*-linux*spe*)
-    ;;
-  powerpc-*-linux*)
-    ;;
-  powerpc-*-gnu-gnualtivec*)
-    ;;
-  powerpc-*-gnu*)
-    ;;
-  powerpc-wrs-vxworks*)
-    ;;
-  powerpc-wrs-windiss*)
-    ;;
-  powerpcle-*-sysv*)
-    ;;
-  powerpcle-*-elf*)
-    ;;
-  powerpcle-*-eabisim*)
-    ;;
-  powerpcle-*-eabi*)
-    ;;
-  powerpc-*-kaos*)
-    ;;
-  powerpcle-*-kaos*)
-    ;;
-  rs6000-ibm-aix4.[12]* | powerpc-ibm-aix4.[12]*)
-    ;;
-  rs6000-ibm-aix4.[3456789]* | powerpc-ibm-aix4.[3456789]*)
-    ;;
-  rs6000-ibm-aix5.1.* | powerpc-ibm-aix5.1.*)
-    ;;
-  rs6000-ibm-aix[56789].* | powerpc-ibm-aix[56789].*)
-    ;;
-  rs6000-*-lynxos*)
-    ;;
-  s390-*-linux*)
-    ;;
-  s390x-*-linux*)
-    ;;
-  sh-*-elf* | sh[2346l]*-*-elf* | sh*-*-kaos*)
-    ;;
-  sh-*-rtemself*)
-    ;;
-  sh-*-rtems*)
-    ;;
-  sh-*-linux* | sh[2346lbe]*-*-linux*)
-    ;;
-  sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-  sh64-*-netbsd* | sh64l*-*-netbsd*)
-    ;;
-  sh-*-*)
-    ;;
-  sparc-tti-*)
-    ;;
-  sparc-*-netbsdelf*)
-    ;;
-  sparc-*-openbsd*)
-    ;;
-  sparc64-*-openbsd*)
-    ;;
-  sparc-*-elf*)
-    ;;
-  sparc-*-linux*) # SPARC's running GNU/Linux, libc6
-    ;;
-  sparc-*-rtems*)
-    ;;
-  sparc64-*-solaris2* | sparcv9-*-solaris2*)
-    ;;
-  sparc-*-solaris2*)
-    ;;
-  sparc-*-sysv4*)
-    ;;
-  sparclite-*-coff*)
-    ;;
-  sparclite-*-elf*)
-    ;;
-  sparc86x-*-elf*)
-    ;;
-  sparc64-*-aout*)
-    ;;
-  sparc64-*-elf*)
-    ;;
-  sparc64-*-freebsd*|ultrasparc-*-freebsd*)
-    ;;
-  sparc64-*-linux*) # 64-bit SPARC's running GNU/Linux
-    ;;
-  sparc64-*-netbsd*)
-    ;;
-  strongarm-*-elf*)
-    ;;
-  strongarm-*-pe)
-    ;;
-  strongarm-*-kaos*)
-    ;;
-  v850e-*-*)
-    ;;
-  v850-*-*)
-    ;;
-  vax-*-bsd*) # VAXen running BSD
-    ;;
-  vax-*-sysv*) # VAXen running System V
-    ;;
-  vax-*-netbsdelf*)
-    ;;
-  vax-*-netbsd*)
-    ;;
-  vax-*-openbsd*)
-    ;;
-  vax-*-ultrix*) # VAXen running ultrix
-    ;;
-  vax-*-vms*) # VAXen running VMS
-    echo "Host ${host} no longer supported" 1>&2
-    exit 1
-    ;;
-  vax-*-*) # VAX default entry
-    ;;
-  xscale-*-elf)
-    ;;
-  xscale-*-coff)
-    ;;
-  xstormy16-*-elf)
-    ;;
-  xtensa-*-elf*)
-    ;;
-  xtensa-*-linux*)
-    ;;
-  am33_2.0-*-linux*)
-    ;;
-  *)
-    echo "*** Configuration ${host} not supported" 1>&2
-    exit 1
     ;;
 esac

-- 
Nathanael Nerode  <neroden at gcc.gnu.org>
http://home.twcny.rr.com/nerode/neroden/fdl.html



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