configure

gcc库的原代码,对编程有很大帮助.

		broken_install=yes
		use_collect2=yes
		;;
	alpha-dec-osf1.2)
		tm_file=alpha/osf12.h
		if [ x$stabs = xyes ]
		then
			tm_file=alpha/gdb-osf12.h
		fi
		if [ x$gas != xyes ]
		then
			extra_passes="mips-tfile mips-tdump"
		fi
		broken_install=yes
		use_collect2=yes
		;;
	alpha-*-osf*)
		if [ x$stabs = xyes ]
		then
			tm_file=alpha/gdb.h
		fi
		if [ x$gas != xyes ]
		then
			extra_passes="mips-tfile mips-tdump"
		fi
		broken_install=yes
		use_collect2=yes
		;;
	alpha-*-winnt3*)
		tm_file=alpha/win-nt.h
		xm_file=alpha/xm-winnt.h
		tmake_file=t-libc-ok
		xmake_file=winnt/x-winnt
		extra_objs=oldnames.o
		extra_gcc_objs="spawnv.o oldnames.o"
		fixincludes=fixinc.winnt
		if [ x$gnu_ld != xyes ]
		then
			extra_programs=ld.exe
		fi
		;;
	arm-*-riscix1.[01]*)		# Acorn RISC machine (early versions)
		tm_file=arm/riscix1-1.h
		use_collect2=yes
		;;
	arm-*-riscix*)			# Acorn RISC machine
		if [ x$gas = xyes ]
		then
		    tm_file=arm/rix-gas.h
		else
		    tm_file=arm/riscix.h
		fi
		xmake_file=arm/x-riscix
		tmake_file=arm/t-riscix
		use_collect2=yes
		;;
	arm-semi-aout | armel-semi-aout)
		cpu_type=arm
		tm_file=arm/semi.h
		tmake_file=arm/t-semi
		fixincludes=Makefile.in # There is nothing to fix
		;;
	arm-*-*)			# generic version
		;;
	c1-convex-*)			# Convex C1
		cpu_type=convex
		tm_file=convex/convex1.h
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	c2-convex-*)			# Convex C2
		cpu_type=convex
		tm_file=convex/convex2.h
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	c32-convex-*)
		cpu_type=convex
		tm_file=convex/convex32.h	# Convex C32xx
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	c34-convex-*)
		cpu_type=convex
		tm_file=convex/convex34.h	# Convex C34xx
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	c38-convex-*)
		cpu_type=convex
		tm_file=convex/convex38.h	# Convex C38xx
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	clipper-intergraph-clix*)
		broken_install=yes
		cpu_type=clipper
		xm_file=clipper/xm-clix.h
		tm_file=clipper/clix.h
		extra_headers=va-clipper.h
		extra_parts="crtbegin.o crtend.o"
		xmake_file=clipper/x-clix
		install_headers_dir=install-headers-cpio
		;;
	dsp16xx-*)
		;;
	elxsi-elxsi-*)
		use_collect2=yes
		;;
# This hasn't been upgraded to GCC 2.
#	fx80-alliant-*)			# Alliant FX/80
#		;;
	h8300-*-*)
		cpu_type=h8300
		;;
	hppa1.1-*-osf*)
		cpu_type=pa
		tm_file=pa/pa1-osf.h
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	hppa1.0-*-osf*)
		cpu_type=pa
		tm_file=pa/pa-osf.h
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	hppa1.1-*-bsd*)
		cpu_type=pa
		tm_file=pa/pa1.h
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	hppa1.0-*-bsd*)
		cpu_type=pa
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	hppa1.0-*-hpux7*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa-gux7.h
		else
			tm_file=pa/pa-hpux7.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux8.0[0-2]*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa-ghpux.h
		else
			tm_file=pa/pa-oldas.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux8.0[0-2]*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa1-ghpux.h
		else
			tm_file=pa/pa1-oldas.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux9* | \
	hppa1.1-*-hpux10*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa1-ghpux9.h
		else
			tm_file=pa/pa1-hpux9.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux9* | \
	hppa1.0-*-hpux10*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa-ghpux9.h
		else
			tm_file=pa/pa-hpux9.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hpux*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa1-ghpux.h
		else
			tm_file=pa/pa1-hpux.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hpux*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa-ghpux.h
		else
			tm_file=pa/pa-hpux.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.1-*-hiux*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa1-ghiux.h
		else
			tm_file=pa/pa1-hiux.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa1.0-*-hiux*)
		cpu_type=pa
		xm_file=pa/xm-pahpux.h
		xmake_file=pa/x-pa-hpux
		tmake_file=pa/t-pa
		if [ x$gas = xyes ]
		then
			tm_file=pa/pa-ghiux.h
		else
			tm_file=pa/pa-hiux.h
		fi
		broken_install=yes
		install_headers_dir=install-headers-cpio
		use_collect2=yes
		;;
	hppa*-*-lites*)
		cpu_type=pa
		tm_file=pa/pa1.h
		use_collect2=yes
		fixincludes=Makefile.in
		;;
	i370-*-mvs*)
		cpu_type=i370
		tm_file=i370/mvs.h
		xm_file=i370/xm-mvs.h
		out_file=i370/mvs370.c
		;;
	i[345]86-ibm-aix*)		# IBM PS/2 running AIX
		cpu_type=i386
                if [ x$gas = xyes ]
		then
			tm_file=i386/aix386.h
			extra_parts="crtbegin.o crtend.o"
			tmake_file=i386/t-crtstuff
		else
			tm_file=i386/aix386ng.h
			use_collect2=yes
		fi
		xm_file=i386/xm-aix.h
		xmake_file=i386/x-aix
		broken_install=yes
		;;
	i486-ncr-sysv4*)		# NCR 3000 - i486 running system V.4
		cpu_type=i386
		xm_file=i386/xm-sysv4.h
		xmake_file=i386/x-ncr3000
		tm_file=i386/sysv4.h
		extra_parts="crtbegin.o crtend.o"
		tmake_file=i386/t-crtpic
		;;
	i[345]86-next-*)
		cpu_type=i386
		tm_file=i386/next.h
		out_file=i386/next.c
		xm_file=i386/xm-next.h
		tmake_file=i386/t-next
		xmake_file=i386/x-next
		;;
	i[345]86-sequent-bsd*) 		# 80386 from Sequent
		cpu_type=i386
		use_collect2=yes
		if [ x$gas = xyes ]
		then
			tm_file=i386/seq-gas.h
		else
			tm_file=i386/sequent.h
		fi
		;;
	i[345]86-sequent-ptx1*)
		cpu_type=i386
		xm_file=i386/xm-sysv3.h
		xmake_file=i386/x-sysv3
		tm_file=i386/seq-sysv3.h
		tmake_file=i386/t-crtstuff
		fixincludes=fixinc.ptx
		extra_parts="crtbegin.o crtend.o"
		install_headers_dir=install-headers-cpio
		broken_install=yes
		;;
	i[345]86-sequent-ptx2* | i[345]86-sequent-sysv*)
		cpu_type=i386
		xm_file=i386/xm-sysv3.h
		xmake_file=i386/x-sysv3
		tm_file=i386/seq2-sysv3.h
		tmake_file=i386/t-crtstuff
		extra_parts="crtbegin.o crtend.o"
		fixincludes=fixinc.ptx
		install_headers_dir=install-headers-cpio
		broken_install=yes
		;;
	i386-sun-sunos*)		# Sun i386 roadrunner
		xm_file=i386/xm-sun.h
		tm_file=i386/sun.h
		use_collect2=yes
		;;
	i[345]86-*-aout*)
		cpu_type=i386
		tm_file=i386/i386-aout.h
		tmake_file=i386/t-i386bare
		;;
	i[345]86-*-bsdi* | i[345]86-*-bsd386*)
		cpu_type=i386
		tm_file=i386/bsd386.h
		xm_file=i386/xm-bsd386.h
#		tmake_file=t-libc-ok
		;;
	i[345]86-*-bsd*)
		cpu_type=i386
		tm_file=i386/386bsd.h
		xm_file=i386/xm-bsd386.h
#		tmake_file=t-libc-ok
# Next line turned off because both 386BSD and BSD/386 use GNU ld.
#		use_collect2=yes
		;;
	i[345]86-*-freebsd*)
		cpu_type=i386
		tm_file=i386/freebsd.h
		xm_file=i386/xm-freebsd.h
		# On FreeBSD, the headers are already ok.
		fixincludes=Makefile.in
		xmake_file=i386/x-freebsd
		;;
	i[345]86-*-netbsd*)
		cpu_type=i386
		tm_file=i386/netbsd.h
		xm_file=i386/xm-netbsd.h
		# On NetBSD, the headers are already okay.
		fixincludes=Makefile.in
		tmake_file=t-libc-ok
		xmake_file=x-netbsd
		;;
	i[345]86-*-coff*)
		cpu_type=i386
		tm_file=i386/i386-coff.h
		tmake_file=i386/t-i386bare
		;;
	i[345]86-*-gnu*)
		cpu_type=i386	# GNU supports this CPU; rest done below.
		;;
	i[345]86-*-isc*)		# 80386 running ISC system
		cpu_type=i386
		xm_file=i386/xm-isc.h
		case $machine in
		  i[345]86-*-isc[34]*)
		    xmake_file=i386/x-isc3
		    ;;
		  *)
		    xmake_file=i386/x-isc
		    ;;
		esac
		echo $xmake_file
                if [ x$gas = xyes -a x$stabs = xyes ]
		then
			tm_file=i386/iscdbx.h
			tmake_file=i386/t-svr3dbx
			extra_parts="crtbegin.o crtend.o svr3.ifile svr3z.ifile"
		else
			tm_file=i386/isccoff.h
			tmake_file=i386/t-crtstuff
			extra_parts="crtbegin.o crtend.o"
		fi
		install_headers_dir=install-headers-cpio
		broken_install=yes
		;;
	i[345]86-*-linux*oldld*)	# Intel 80386's running Linux
		cpu_type=i386		# with a.out format using pre BFD linkers
		xm_file=i386/xm-linux.h
		xmake_file=x-linux
		tm_file=i386/linux-oldld.h
		fixincludes=Makefile.in #On Linux, the headers are ok already.
		broken_install=yes
		gnu_ld=yes
		;;
	i[345]86-*-linux*aout*)		# Intel 80386's running Linux
		cpu_type=i386		# with a.out format
		xm_file=i386/xm-linux.h
		xmake_file=x-linux
		tm_file=i386/linux-aout.h
		fixincludes=Makefile.in #On Linux, the headers are ok already.
		broken_install=yes
		gnu_ld=yes
		;;
	i[345]86-*-linux*)		# Intel 80386's running Linux
		cpu_type=i386		# with ELF format
		xm_file=i386/xm-linux.h
		xmake_file=x-linux
		tm_file=i386/linux.h
		fixincludes=Makefile.in #On Linux, the headers are ok already.
		broken_install=yes
		gnu_ld=yes
		# Don't use it. Linux uses a slightly different one.
		# The real one comes with the Linux C library.
		#extra_parts="crtbegin.o crtend.o"
		;;
      i[345]86-go32-msdos | i[345]86-*-go32)
              cpu_type=i386
              tm_file=i386/go32.h
              ;;
	i[345]86-*-lynxos*)
		cpu_type=i386
		if [ x$gas = xyes ]
		then
			tm_file=i386/lynx.h
		else
			tm_file=i386/lynx-ng.h
		fi
		xm_file=i386/xm-lynx.h
		tmake_file=i386/t-i386bare
		xmake_file=x-lynx
		;;
	i[345]86-*-mach*)
		cpu_type=i386
		tm_file=i386/mach.h
#		tmake_file=t-libc-ok
		use_collect2=yes
		;;
	i[345]86-*-osfrose*)		# 386 using OSF/rose
		cpu_type=i386
                if [ x$elf = xyes ]
		then
			tm_file=i386/osfelf.h
			use_collect2=
		else
			tm_file=i386/osfrose.h
			use_collect2=yes
		fi
		xm_file=i386/xm-osf.h
		xmake_file=i386/x-osfrose
		extra_objs=halfpic.o
		;;
	i[345]86-*-sco3.2v4*)	 	# 80386 running SCO 3.2v4 system
		cpu_type=i386
		xm_file=i386/xm-sco.h
		xmake_file=i386/x-sco4
		fixincludes=fixinc.sco
		broken_install=yes
		install_headers_dir=install-headers-cpio
                if [ x$stabs = xyes ]
		then
			tm_file=i386/sco4dbx.h
			tmake_file=i386/t-svr3dbx
			extra_parts="svr3.ifile svr3z.rfile"
		else
			tm_file=i386/sco4.h
			tmake_file=i386/t-crtstuff
			extra_parts="crtbegin.o crtend.o"
		fi
		;;
	i[345]86-*-sco*)	 	# 80386 running SCO system
		cpu_type=i386
		xm_file=i386/xm-sco.h
		xmake_file=i386/x-sco
		broken_install=yes
		install_headers_dir=install-headers-cpio
                if [ x$stabs = xyes ]
		then
			tm_file=i386/scodbx.h
			tmake_file=i386/t-svr3dbx
			extra_parts="svr3.ifile svr3z.rfile"
		else
			tm_file=i386/sco.h
			extra_parts="crtbegin.o crtend.o"
			tmake_file=i386/t-crtstuff
		fi
		truncate_target=yes
		;;
	i[345]86-*-solaris2* | i[345]86-*-sunos5*)
		cpu_type=i386
		xm_file=i386/xm-sysv4.h
		tm_file=i386/sol2.h
		tmake_file=i386/t-sol2
		extra_parts="crt1.o crti.o crtn.o crtbegin.o crtend.o"
		xmake_file=x-svr4
		fixincludes=fixinc.svr4
		broken_install=yes
		;;
	i[345]86-*-sysv4*)		# Intel 80386's running system V.4
		cpu_type=i386
		xm_file=i386/xm-sysv4.h
		if [ x$stabs = xyes ]
		then
			tm_file=i386/sysv4gdb.h
		else
			tm_file=i386/sysv4.h
		fi
		tmake_file=i386/t-crtpic
		xmake_file=x-svr4
		extra_parts="crtbegin.o crtend.o"
		;;
	i[345]86-*-sysv*)		# Intel 80386's running system V
		cpu_type=i386
		xm_file=i386/xm-sysv3.h
		xmake_file=i386/x-sysv3
		if [ x$gas = xyes ]
		then
			if [ x$stabs = xyes ]
			then
				tm_file=i386/svr3dbx.h
				tmake_file=i386/t-svr3dbx