PATCH: Kill dead config files

["Zack Weinberg" <zackw at stanford dot edu>]

This patch removes a number of files and config.gcc stanzas associated
with obsolete configurations.  It should have no effect on any
supported platform.

Applied to mainline as obvious cleanup.

zw

	* config.gcc: Expunge references to alpha/t-pe, pa/t-openbsd,
	x-linux-aout, i386/t-go32, t-osf, m68k/x-m68kv,
	ns32k/xm-netbsd.h, rs6000/t-openbsd, rs6000/t-xnewas,
	rs6000/x-aix41-gld.  These are nonexistent, empty, or obsolete.

	(i750a-*-*): Error here if hosting on i750a.
	(alpha*-*-winnt*, ix86-*-winnt3*): Remove stanzas entirely.

	* x-linux-aout, xm-freebsd.h, i386/beos-pe.h, ns32k/xm-netbsd.h:
	Remove (empty modulo comments).

	* 1750a/xm-1750a.h, alpha/config-nt.sed, alpha/win-nt.h,
	alpha/xm-winnt.h, i386/config-nt.sed, i386/os2.h,
	i386/t-winnt, i386/win-nt.h, i386/xm-freebsd.h, i386/xm-os2.h,
	i386/xm-winnt.h, m68k/x-alloca-c, m88k/x-dguxbcs,
	mips/x-netbsd, mips/x-nws3250v4, rs6000/t-xnewas,
	rs6000/t-xrs6000, rs6000/xm-cygwin.h: Remove (obsolete)

	* i386/crtdll.h, i386/cygwin.h, i386/mingw32.h:
	Remove reference to winnt.h in comment.
	* rs6000/t-newas, rs6000/t-rs6000: Override LIBGCC1_TEST to null.


===================================================================
Index: config.gcc
--- config.gcc	2001/02/19 17:15:53	1.28
+++ config.gcc	2001/02/25 00:55:05
@@ -316,6 +316,11 @@ case $machine in
 	fi
 	;;
 1750a-*-*)
+	# 1750a is only supported as a target.
+	case "$build,$host" in 1750a*,* | *,1750a* )
+		echo "*** $machine is only supported as a target" >&2
+		exit 1
+	esac
 	;;
 a29k-*-bsd* | a29k-*-sym1*)
 	tm_file="${tm_file} a29k/unix.h"
@@ -353,7 +358,7 @@ alpha-*-interix)
 	target_cpu_default="MASK_GAS|MASK_IEEE_CONFORMANT"
 
 	xm_file="alpha/xm-alpha-interix.h xm-interix.h"
-	xmake_file="x-interix alpha/t-pe"
+	xmake_file=x-interix
 	tmake_file="alpha/t-alpha alpha/t-interix alpha/t-ieee"
 	if test x$enable_threads = xyes ; then
 		thread_file='posix'
@@ -472,21 +477,6 @@ alpha*-*-vxworks*)
 	use_collect2=yes
 	thread_file='vxworks'
 	;;
-alpha*-*-winnt*)
- 	tm_file="${tm_file} alpha/alpha32.h alpha/win-nt.h winnt/win-nt.h"
-	xm_file="${xm_file} config/winnt/xm-winnt.h alpha/xm-winnt.h"
-	tmake_file="t-libc-ok alpha/t-alpha alpha/t-ieee"
-	xmake_file=winnt/x-winnt
-	extra_host_objs=oldnames.o
-	extra_gcc_objs="spawnv.o oldnames.o"
-	if test x$gnu_ld != xyes
-	then
-		extra_programs=ld.exe
-	fi
-	if test x$enable_threads = xyes; then
-		thread_file='win32'
-	fi
-	;;
 alpha*-dec-vms*)
 	tm_file=alpha/vms.h
 	xm_file="${xm_file} alpha/xm-vms.h"
@@ -685,7 +675,6 @@ hppa*-*-linux*)
 	;;
 hppa*-*-openbsd*)
 	target_cpu_default="MASK_PA_11"
-	tmake_file=pa/t-openbsd
 	;;
 hppa1.1-*-rtems*)
 	tm_file="pa/pa-pro.h ${tm_file} pa/pa-pro-end.h libgloss.h pa/rtems.h"
@@ -1163,7 +1152,6 @@ i[34567]86-*-isc*)		# 80386 running ISC 
 i[34567]86-*-linux*oldld*)	# Intel 80386's running GNU/Linux
 				# with a.out format using
 				# pre BFD linkers
-	xmake_file=x-linux-aout
 	tmake_file="t-linux-aout i386/t-crtstuff"
 	tm_file=i386/linux-oldld.h
 	gnu_ld=yes
@@ -1171,7 +1159,6 @@ i[34567]86-*-linux*oldld*)	# Intel 80386
 	;;
 i[34567]86-*-linux*aout*)	# Intel 80386's running GNU/Linux
 				# with a.out format
-	xmake_file=x-linux-aout
 	tmake_file="t-linux-aout i386/t-crtstuff"
 	tm_file=i386/linux-aout.h
 	gnu_ld=yes
@@ -1264,7 +1251,7 @@ i[34567]86-go32-rtems*)
 	cpu_type=i386
 	xm_file=i386/xm-go32.h
 	tm_file=i386/go32-rtems.h
-	tmake_file="i386/t-go32 t-rtems"
+	tmake_file=t-rtems
 	if test x$enable_threads = xyes; then
 	  thread_file='rtems'
 	fi
@@ -1510,22 +1497,6 @@ i[34567]86-*-interix*)
 		tm_file="${tm_file} dbxcoff.h"
 	fi
 	;;
-i[34567]86-*-winnt3*)
-	tm_file=i386/win-nt.h
-	out_file=i386/i386.c
-	xm_file="xm-winnt.h ${xm_file}"
-	xmake_file=winnt/x-winnt
-	tmake_file=i386/t-winnt
-	extra_host_objs="winnt.o oldnames.o"
-	extra_gcc_objs="spawnv.o oldnames.o"
-	if test x$gnu_ld != xyes
-	then
-		extra_programs=ld.exe
-	fi
-	if test x$enable_threads = xyes; then
-		thread_file='win32'
-	fi
-	;;
 i[34567]86-dg-dgux*)
 	xm_file="xm-alloca.h ${xm_file}"
 	xm_defines="USG POSIX"
@@ -1557,7 +1528,6 @@ i860-*-mach*)
 i860-*-osf*)			# Intel Paragon XP/S, OSF/1AD
 	tm_file="${tm_file} svr3.h i860/paragon.h"
 	xm_defines="USG SVR3"
-	tmake_file=t-osf
 	;;
 i860-*-sysv3*)
 	tm_file="${tm_file} svr3.h i860/sysv3.h"
@@ -1841,7 +1811,6 @@ m68k-ccur-rtu)
 	;;
 m68k-hp-bsd4.4*)		# HP 9000/3xx running 4.4bsd
 	tm_file=m68k/hp3bsd44.h
-	xmake_file=m68k/x-hp3bsd44
 	use_collect2=yes
 	extra_headers=math-68881.h
 	float_format=m68k
@@ -2020,7 +1989,6 @@ m68k*-*-openbsd*)
 m68k-*-sysv3*)			# Motorola m68k's running system V.3
 	xm_file="xm-alloca.h ${xm_file}"
 	xm_defines=USG
-	xmake_file=m68k/x-m68kv
 	extra_parts="crtbegin.o crtend.o"
 	extra_headers=math-68881.h
 	float_format=m68k
@@ -2704,7 +2672,6 @@ ns32k-pc532-minix*)
 	;;
 ns32k-*-netbsd*)
 	tm_file=ns32k/netbsd.h
-	xm_file="ns32k/xm-netbsd.h ${xm_file}"
 	# On NetBSD, the headers are already okay, except for math.h.
 	tmake_file=t-netbsd
 	use_collect2=yes
@@ -2739,7 +2706,7 @@ romp-*-openbsd*)
 	# Nothing special
 	;;
 powerpc-*-openbsd*)
-	tmake_file="${tmake_file} rs6000/t-rs6000 rs6000/t-openbsd"
+	tmake_file="${tmake_file} rs6000/t-rs6000"
 	;;
 powerpc-*-beos*)
 	cpu_type=rs6000
@@ -2878,29 +2845,13 @@ rs6000-ibm-aix3.[01]*)
 	;;
 rs6000-ibm-aix3.2.[456789]* | powerpc-ibm-aix3.2.[456789]*)
 	tm_file="${tm_file} rs6000/aix.h rs6000/aix3newas.h"
-	if test x$host != x$target
-	then
-		tmake_file=rs6000/t-xnewas
-	else
-		tmake_file=rs6000/t-newas
-	fi
+	tmake_file=rs6000/t-newas
 	float_format=none
 	use_collect2=yes
 	;;
 rs6000-ibm-aix4.[12]* | powerpc-ibm-aix4.[12]*)
 	tm_file="${tm_file} rs6000/aix.h rs6000/aix41.h"
-	if test x$host != x$target
-	then
-		tmake_file=rs6000/t-xnewas
-	else
-		tmake_file=rs6000/t-newas
-	fi
-	if test "$gnu_ld" = yes
-	then
-		xmake_file=rs6000/x-aix41-gld
-	else
-		tmake_file='rs6000/t-newas'
-	fi
+	tmake_file=rs6000/t-newas
 	xmake_file=rs6000/x-aix41
 	float_format=none
 	use_collect2=yes
===================================================================
Index: config/i386/crtdll.h
--- config/i386/crtdll.h	2000/11/02 23:29:09	1.11
+++ config/i386/crtdll.h	2001/02/25 00:55:05
@@ -1,7 +1,5 @@
 /* Operating system specific defines to be used when targeting GCC for
-   hosting on Windows32, using GNU tools and the Windows32 API Library,
-   as distinct from winnt.h, which is used to build GCC for use with a
-   windows style library and tool set and uses the Microsoft tools.
+   hosting on Windows32, using GNU tools and the Windows32 API Library.
    This variant uses CRTDLL.DLL insted of MSVCRTDLL.DLL.
    Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
 
===================================================================
Index: config/i386/cygwin.h
--- config/i386/cygwin.h	2001/02/05 19:31:06	1.33
+++ config/i386/cygwin.h	2001/02/25 00:55:05
@@ -1,7 +1,5 @@
 /* Operating system specific defines to be used when targeting GCC for
-   hosting on Windows NT 3.x, using a Unix style C library and tools,
-   as distinct from winnt.h, which is used to build GCC for use with a
-   windows style library and tool set and uses the Microsoft tools.
+   hosting on Windows32, using a Unix style C library and tools.
    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000
    Free Software Foundation, Inc.
 
===================================================================
Index: config/i386/mingw32.h
--- config/i386/mingw32.h	2001/01/29 21:41:46	1.18
+++ config/i386/mingw32.h	2001/02/25 00:55:05
@@ -1,7 +1,5 @@
 /* Operating system specific defines to be used when targeting GCC for
-   hosting on Windows32, using GNU tools and the Windows32 API Library,
-   as distinct from winnt.h, which is used to build GCC for use with a
-   windows style library and tool set and uses the Microsoft tools.
+   hosting on Windows32, using GNU tools and the Windows32 API Library.
    Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
===================================================================
Index: config/rs6000/t-newas
--- config/rs6000/t-newas	1999/08/05 03:27:48	1.3
+++ config/rs6000/t-newas	2001/02/25 00:55:05
@@ -1,6 +1,7 @@
 # Do not build libgcc1.
 LIBGCC1 =
 CROSS_LIBGCC1 =
+LIBGCC1_TEST =
 
 # We want fine grained libraries, so use the new code to build the
 # floating point emulation libraries.
===================================================================
Index: config/rs6000/t-rs6000
--- config/rs6000/t-rs6000	1999/08/05 03:27:48	1.3
+++ config/rs6000/t-rs6000	2001/02/25 00:55:05
@@ -1,6 +1,7 @@
 # Do not build libgcc1.
 LIBGCC1 =
 CROSS_LIBGCC1 =
+LIBGCC1_TEST =
 
 # We want fine grained libraries, so use the new code to build the
 # floating point emulation libraries.