@end ifset
@c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-@c 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+@c 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
@c *** Converted to texinfo by Dean Wakerley, dean@wakerley.com
@c Include everything if we're not making html
@c Part 2 Summary Description and Copyright
@copying
Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
@sp 1
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.2 or
@command{configure}/@command{make}.
@command{zsh} is not a fully compliant POSIX shell and will not
-work when configuring GCC.
+work when configuring GCC@.
@item GNU binutils
@item GNU make version 3.79.1 (or later)
-You must have GNU make installed to build GCC.
+You must have GNU make installed to build GCC@.
@item GNU tar version 1.12 (or later)
@item GNU Multiple Precision Library (GMP) version 4.0 (or later)
-Necessary to build the Fortran frontend. If you don't have it
+Necessary to build the Fortran frontend. If you don't have it
installed in your library search path, you will have to configure with
the @option{--with-gmp} or @option{--with-gmp-dir} configure option.
directories require autoconf 2.59 (exactly), but the toplevel
still requires autoconf 2.13 (exactly).
-@item automake versions 1.8.5 and 1.9.1
+@item automake versions 1.9.3
Necessary when modifying a @file{Makefile.am} file to regenerate its
associated @file{Makefile.in}.
@file{libcpp}, @file{libiberty}, @file{libobjc} directories as well
as any of their subdirectories.
-The Java directory @file{libjava} and the @file{libstdc++-v3} directory
-require automake 1.9.1. Every other directory should work with either
-automake 1.8.5 and automake 1.9.1, but most of them have been tested only
-with automake 1.8.5 so far.
+For directories that use automake, GCC requires the latest release in
+the 1.9.x series, which is currently 1.9.3. When regenerating a directory
+to a newer version, please update all the directories using an older 1.9.x
+to the latest released version.
@item gettext version 0.12 (or later)
@itemx ssh (any version)
Necessary to access the CVS repository. Public releases and weekly
-snapshots of the development sources are also available via FTP.
+snapshots of the development sources are also available via FTP@.
@item perl version 5.6.1 (or later)
for information on how to obtain GCC@.
The full distribution includes the C, C++, Objective-C, Fortran 77, Fortran
-(in case of GCC 3.5 and later), Java, and Ada (in case of GCC 3.1 and later)
+(in case of GCC 4.0 and later), Java, and Ada (in case of GCC 3.1 and later)
compilers. The full distribution also includes runtime libraries for C++,
Objective-C, Fortran 77, Fortran, and Java. In GCC 3.0 and later versions,
GNU compiler testsuites are also included in the full distribution.
@item --program-prefix=@var{prefix}
GCC supports some transformations of the names of its programs when
-installing them. This option prepends @var{prefix} to the names of
-programs to install in @var{bindir} (see above). For example, specifying
+installing them. This option prepends @var{prefix} to the names of
+programs to install in @var{bindir} (see above). For example, specifying
@option{--program-prefix=foo-} would result in @samp{gcc}
being installed as @file{/usr/local/bin/foo-gcc}.
@item --program-suffix=@var{suffix}
Appends @var{suffix} to the names of programs to install in @var{bindir}
-(see above). For example, specifying @option{--program-suffix=-3.1}
+(see above). For example, specifying @option{--program-suffix=-3.1}
would result in @samp{gcc} being installed as
@file{/usr/local/bin/gcc-3.1}.
@item --program-transform-name=@var{pattern}
Applies the @samp{sed} script @var{pattern} to be applied to the names
-of programs to install in @var{bindir} (see above). @var{pattern} has to
+of programs to install in @var{bindir} (see above). @var{pattern} has to
consist of one or more basic @samp{sed} editing commands, separated by
-semicolons. For example, if you want the @samp{gcc} program name to be
+semicolons. For example, if you want the @samp{gcc} program name to be
transformed to the installed program @file{/usr/local/bin/myowngcc} and
the @samp{g++} program name to be transformed to
@file{/usr/local/bin/gspecial++} without changing other program names,
to achieve this effect.
All three options can be combined and used together, resulting in more
-complex conversion patterns. As a basic rule, @var{prefix} (and
+complex conversion patterns. As a basic rule, @var{prefix} (and
@var{suffix}) are prepended (appended) before further transformations
can happen with a special transformation script @var{pattern}.
For native builds, some of the installed programs are also installed
with the target alias in front of their name, as in
-@samp{i686-pc-linux-gnu-gcc}. All of the above transformations happen
+@samp{i686-pc-linux-gnu-gcc}. All of the above transformations happen
before the target alias is prepended to the name---so, specifying
@option{--program-prefix=foo-} and @option{program-suffix=-3.1}, the
resulting binary would be installed as
@file{@var{exec-prefix}/libexec} and @var{exec-prefix} defaults to
@var{prefix} which defaults to @file{/usr/local} unless overridden by
the @option{--prefix=@var{pathname}} switch described
-above. @var{target} is the target system triple, such as
+above. @var{target} is the target system triple, such as
@samp{sparc-sun-solaris2.7}, and @var{version} denotes the GCC
version, such as 3.0.
@item
DCE thread support.
@item gnat
Ada tasking support. For non-Ada programs, this setting is equivalent
-to @samp{single}. When used in conjunction with the Ada run time, it
+to @samp{single}. When used in conjunction with the Ada run time, it
causes GCC to use the same thread primitives as Ada uses. This option
is necessary when using both Ada and the back end exception handling,
which is the default for most Ada targets.
@item no
This is an alias for @samp{single}.
@item posix
-Generic POSIX thread support.
+Generic POSIX/Unix98 thread support.
+@item posix95
+Generic POSIX/Unix95 thread support.
@item rtems
RTEMS thread support.
@item single
Division by zero checks use the break instruction.
@end table
-@item --enable-altivec
-Specify that the target supports AltiVec vector enhancements. This
-option will adjust the ABI for AltiVec enhancements, as well as generate
-AltiVec code when appropriate. This option is only available for
-PowerPC systems.
-
@item --enable-__cxa_atexit
Define if you want to use __cxa_atexit, rather than atexit, to
register C++ destructors for local statics and global objects.
This is essential for fully standards-compliant handling of
-destructors, but requires __cxa_atexit in libc. This option is currently
-only available on systems with GNU libc. When enabled, this will cause
+destructors, but requires __cxa_atexit in libc. This option is currently
+only available on systems with GNU libc. When enabled, this will cause
@option{-fuse-cxa-exit} to be passed by default.
@item --enable-target-optspace
@file{@var{libdir}} unless you overruled it by using
@option{--with-gxx-include-dir=@var{dirname}}. Using this option is
particularly useful if you intend to use several versions of GCC in
-parallel. This is currently supported by @samp{libgfortran},
+parallel. This is currently supported by @samp{libgfortran},
@samp{libjava}, @samp{libmudflap}, @samp{libstdc++}, and @samp{libobjc}.
+@item --with-java-home=@var{dirname}
+This @samp{libjava} option overrides the default value of the
+@samp{java.home} system property. It is also used to set
+@samp{sun.boot.class.path} to @file{@var{dirname}/lib/rt.jar}. By
+default @samp{java.home} is set to @file{@var{prefix}} and
+@samp{sun.boot.class.path} to
+@file{@var{datadir}/java/libgcj-@var{version}.jar}.
@item --enable-languages=@var{lang1},@var{lang2},@dots{}
Specify that only a particular subset of compilers and
@end smallexample
@var{key} defaults to GCC version number, and can be overridden by the
-@option{--enable-win32-registry=@var{key}} option. Vendors and distributors
+@option{--enable-win32-registry=@var{key}} option. Vendors and distributors
who use custom installers are encouraged to provide a different key,
perhaps one comprised of vendor name and GCC version number, to
avoid conflict with existing installations. This feature is enabled
@item --enable-checking
@itemx --enable-checking=@var{list}
-When you specify this option, the compiler is built to perform checking
-of tree node types when referencing fields of that node, and some other
-internal consistency checks. This does not change the generated code,
-but adds error checking within the compiler. This will slow down the
-compiler and may only work properly if you are building the compiler
-with GCC@. This is on by default when building from CVS or snapshots,
-but off for releases. More control over the checks may be had by
-specifying @var{list}; the categories of checks available are
-@samp{release}, @samp{assert}, @samp{misc}, @samp{tree}, @samp{gc},
-@samp{rtl}, @samp{rtlflag}, @samp{fold}, @samp{gcac} and
-@samp{valgrind}. The @samp{release} category enables only those checks
-suitable for release builds, currently this is just @samp{assert}. The
-check @samp{valgrind} requires the external @command{valgrind}
-simulator, available from @uref{http://valgrind.kde.org/}. The checks
-@samp{rtl}, @samp{gcac} and @samp{valgrind} are very expensive. The
-default when @var{list} is not specified is
-@samp{assert,misc,tree,gc,rtlflag}. That is also the default for
-development builds, when @samp{--enable-checking} is not specified. For
-release builds the default, when @samp{--enable-checking} is not given,
-is @samp{release}. To disable all checking, @samp{--disable-checking}
-must be explicitly requested. Disabling assertions will make the
-compiler slightly faster but increase the risk of undetected internal
-errors causing wrong code to be generated.
+When you specify this option, the compiler is built to perform internal
+consistency checks of the requested complexity. This does not change the
+generated code, but adds error checking within the compiler. This will
+slow down the compiler and may only work properly if you are building
+the compiler with GCC@. This is @samp{yes} by default when building
+from CVS or snapshots, but @samp{release} for releases. More control
+over the checks may be had by specifying @var{list}. The categories of
+checks available are @samp{yes} (most common checks
+@samp{assert,misc,tree,gc,rtlflag,runtime}), @samp{no} (no checks at
+all), @samp{all} (all but @samp{valgrind}), @samp{release} (cheapest
+checks @samp{assert,runtime}) or @samp{none} (same as @samp{no}).
+Individual checks can be enabled with these flags @samp{assert},
+@samp{fold}, @samp{gc}, @samp{gcac} @samp{misc}, @samp{rtl},
+@samp{rtlflag}, @samp{runtime}, @samp{tree}, and @samp{valgrind}.
+
+The @samp{valgrind} check requires the external @command{valgrind}
+simulator, available from @uref{http://valgrind.kde.org/}. The
+@samp{rtl}, @samp{gcac} and @samp{valgrind} checks are very expensive.
+To disable all checking, @samp{--disable-checking} or
+@samp{--enable-checking=none} must be explicitly requested. Disabling
+assertions will make the compiler and runtime slightly faster but
+increase the risk of undetected internal errors causing wrong code to be
+generated.
@item --enable-coverage
@itemx --enable-coverage=@var{level}
With this option, the compiler is built to collect self coverage
-information, every time it is run. This is for internal development
-purposes, and only works when the compiler is being built with gcc. The
+information, every time it is run. This is for internal development
+purposes, and only works when the compiler is being built with gcc. The
@var{level} argument controls whether the compiler is built optimized or
-not, values are @samp{opt} and @samp{noopt}. For coverage analysis you
+not, values are @samp{opt} and @samp{noopt}. For coverage analysis you
want to disable optimization, for performance analysis you want to
-enable optimization. When coverage is enabled, the default level is
+enable optimization. When coverage is enabled, the default level is
without optimization.
@item --enable-gather-detailed-mem-stats
allocation is gathered. This information is printed when using
@option{-fmem-report}.
+@item --with-gc
+@itemx --with-gc=@var{choice}
+With this option you can specify the garbage collector implementation
+used during the compilation process. @var{choice} can be one of
+@samp{page} and @samp{zone}, where @samp{page} is the default.
+
@item --enable-nls
@itemx --disable-nls
The @option{--enable-nls} option enables Native Language Support (NLS),
building a cross compiler, if @file{@var{prefix}/@var{target}/sys-include}
doesn't pre-exist. If @file{@var{prefix}/@var{target}/sys-include} does
pre-exist, the @var{dir} argument may be omitted. @command{fixincludes}
-will be run on these files to make them compatible with GCC.
+will be run on these files to make them compatible with GCC@.
@item --without-headers
Tells GCC not use any target headers from a libc when building a cross
Don't set system properties from @env{GCJ_PROPERTIES}.
@item --enable-hash-synchronization
-Use a global hash table for monitor locks. Ordinarily,
+Use a global hash table for monitor locks. Ordinarily,
@samp{libgcj}'s @samp{configure} script automatically makes
-the correct choice for this option for your platform. Only use
+the correct choice for this option for your platform. Only use
this if you know you need the library to be configured differently.
@item --enable-interpreter
-Enable the Java interpreter. The interpreter is automatically
-enabled by default on all platforms that support it. This option
+Enable the Java interpreter. The interpreter is automatically
+enabled by default on all platforms that support it. This option
is really only useful if you want to disable the interpreter
(using @option{--disable-interpreter}).
@item --disable-java-net
-Disable java.net. This disables the native part of java.net only,
+Disable java.net. This disables the native part of java.net only,
using non-functional stubs for native method implementations.
@item --disable-jvmpi
Enable runtime eCos target support.
@item --without-libffi
-Don't use @samp{libffi}. This will disable the interpreter and JNI
+Don't use @samp{libffi}. This will disable the interpreter and JNI
support as well, as these require @samp{libffi} to work.
@item --enable-libgcj-debug
@item --enable-libgcj-multifile
If specified, causes all @file{.java} source files to be
compiled into @file{.class} files in one invocation of
-@samp{gcj}. This can speed up build time, but is more
-resource-intensive. If this option is unspecified or
+@samp{gcj}. This can speed up build time, but is more
+resource-intensive. If this option is unspecified or
disabled, @samp{gcj} is invoked once for each @file{.java}
file to compile into a @file{.class} file.
Search for libiconv in @file{DIR/include} and @file{DIR/lib}.
@item --enable-sjlj-exceptions
-Force use of @code{builtin_setjmp} for exceptions. @samp{configure}
-ordinarily picks the correct value based on the platform. Only use
+Force use of @code{builtin_setjmp} for exceptions. @samp{configure}
+ordinarily picks the correct value based on the platform. Only use
this option if you are sure you need a different setting.
@item --with-system-zlib
@item --with-win32-nlsapi=ansi, unicows or unicode
Indicates how MinGW @samp{libgcj} translates between UNICODE
-characters and the Win32 API.
+characters and the Win32 API@.
@table @code
@item ansi
Use the single-byte @code{char} and the Win32 A functions natively,
-translating to and from UNICODE when using these functions. If
+translating to and from UNICODE when using these functions. If
unspecified, this is the default.
@item unicows
-Use the @code{WCHAR} and Win32 W functions natively. Adds
+Use the @code{WCHAR} and Win32 W functions natively. Adds
@code{-lunicows} to @file{libgcj.spec} to link with @samp{libunicows}.
@file{unicows.dll} needs to be deployed on Microsoft Windows 9X machines
-running built executables. @file{libunicows.a}, an open-source
+running built executables. @file{libunicows.a}, an open-source
import library around Microsoft's @code{unicows.dll}, is obtained from
@uref{http://libunicows.sourceforge.net/}, which also gives details
on getting @file{unicows.dll} from Microsoft.
@item unicode
-Use the @code{WCHAR} and Win32 W functions natively. Does @emph{not}
-add @code{-lunicows} to @file{libgcj.spec}. The built executables will
+Use the @code{WCHAR} and Win32 W functions natively. Does @emph{not}
+add @code{-lunicows} to @file{libgcj.spec}. The built executables will
only run on Microsoft Windows NT and above.
@end table
@end table
@item --enable-java-awt=PEER(S)
Specifies the AWT peer library or libraries to build alongside
-@samp{libgcj}. If this option is unspecified or disabled, AWT
-will be non-functional. Current valid values are @option{gtk} and
-@option{xlib}. Multiple libraries should be separated by a
+@samp{libgcj}. If this option is unspecified or disabled, AWT
+will be non-functional. Current valid values are @option{gtk} and
+@option{xlib}. Multiple libraries should be separated by a
comma (i.e.@: @option{--enable-java-awt=gtk,xlib}).
@item --enable-gtk-cairo
-Build the cairo Graphics2D implementation on GTK.
+Build the cairo Graphics2D implementation on GTK@.
@item --enable-java-gc=TYPE
-Choose garbage collector. Defaults to @option{boehm} if unspecified.
+Choose garbage collector. Defaults to @option{boehm} if unspecified.
@item --disable-gtktest
Do not try to compile and run a test GTK+ program.
reports a successful build runs the testsuites and submits the results.
This step is optional and may require you to download additional software,
but it can give you confidence in your new GCC installation or point out
-problems before you install and start using your new GCC.
+problems before you install and start using your new GCC@.
First, you must have @uref{download.html,,downloaded the testsuites}.
These are part of the full distribution, but if you downloaded the
specifying the location of that tree when invoking @samp{make}, as in
@samp{make MAUVEDIR=~/mauve check}.
-@uref{http://www-124.ibm.com/developerworks/oss/cvs/jikes/~checkout~/jacks/jacks.html,,Jacks}
+@uref{http://sources.redhat.com/mauve/,,Jacks}
is a free testsuite that tests Java compiler front ends. This suite
can be run as part of libgcj testing by placing the Jacks tree within
the libjava testsuite at @file{libjava/testsuite/libjava.jacks/jacks}.
If your system is not listed for the version of GCC that you built,
send a note to
@email{gcc@@gcc.gnu.org} indicating
-that you successfully built and installed GCC.
+that you successfully built and installed GCC@.
Include the following information:
@itemize @bullet
Free Software Foundation}, though such manuals may not be for the most
recent version of GCC@.
+If you would like to generate online HTML documentation, do @samp{cd
+@var{objdir}; make html} and HTML will be generated for the manuals in
+@file{@var{objdir}/HTML}.
+
@html
<hr />
<p>
Digital UNIX 4.0D and 5.1,
GNU/Linux (i386),
HP-UX 10.20, 11.00, and 11.11, and
-Solaris/SPARC 2.5.1, 2.6, 2.7, 8, and 9,
+Solaris/SPARC 2.5.1, 2.6, 7, 8, and 9.
@item
@uref{http://www.openpkg.org/,,OpenPKG} offers binaries for quite a
@ifhtml
@itemize
@item
-@uref{#alpha*-*-*,,alpha*-*-*}
+@uref{#alpha-x-x,,alpha*-*-*}
@item
-@uref{#alpha*-dec-osf*,,alpha*-dec-osf*}
+@uref{#alpha-dec-osf,,alpha*-dec-osf*}
@item
-@uref{#alphaev5-cray-unicosmk*,,alphaev5-cray-unicosmk*}
+@uref{#alphaev5-cray-unicosmk,,alphaev5-cray-unicosmk*}
@item
-@uref{#arc-*-elf,,arc-*-elf}
+@uref{#arc-x-elf,,arc-*-elf}
@item
-@uref{#arm-*-elf,,arm-*-elf}
-@uref{#arm-*-coff,,arm-*-coff}
-@uref{#arm-*-aout,,arm-*-aout}
+@uref{#arm-x-elf,,arm-*-elf}
+@uref{#arm-x-coff,,arm-*-coff}
+@uref{#arm-x-aout,,arm-*-aout}
@item
-@uref{#xscale-*-*,,xscale-*-*}
+@uref{#xscale-x-x,,xscale-*-*}
@item
@uref{#avr,,avr}
@item
+@uref{#bfin,,Blackfin}
+@item
@uref{#c4x,,c4x}
@item
@uref{#dos,,DOS}
@item
-@uref{#*-*-freebsd*,,*-*-freebsd*}
+@uref{#x-x-freebsd,,*-*-freebsd*}
@item
@uref{#h8300-hms,,h8300-hms}
@item
-@uref{#hppa*-hp-hpux*,,hppa*-hp-hpux*}
+@uref{#hppa-hp-hpux,,hppa*-hp-hpux*}
@item
-@uref{#hppa*-hp-hpux10,,hppa*-hp-hpux10}
+@uref{#hppa-hp-hpux10,,hppa*-hp-hpux10}
@item
-@uref{#hppa*-hp-hpux11,,hppa*-hp-hpux11}
+@uref{#hppa-hp-hpux11,,hppa*-hp-hpux11}
@item
-@uref{#*-*-linux-gnu,,*-*-linux-gnu}
+@uref{#x-x-linux-gnu,,*-*-linux-gnu}
@item
-@uref{#ix86-*-linux*aout,,i?86-*-linux*aout}
+@uref{#ix86-x-linuxaout,,i?86-*-linux*aout}
@item
-@uref{#ix86-*-linux*,,i?86-*-linux*}
+@uref{#ix86-x-linux,,i?86-*-linux*}
@item
-@uref{#ix86-*-sco3.2v5*,,i?86-*-sco3.2v5*}
+@uref{#ix86-x-sco3.2v5,,i?86-*-sco3.2v5*}
@item
-@uref{#ix86-*-udk,,i?86-*-udk}
+@uref{#ix86-x-solaris2.10,,i?86-*-solaris2.10}
@item
-@uref{#ix86-*-esix,,i?86-*-esix}
+@uref{#ix86-x-udk,,i?86-*-udk}
@item
-@uref{#ia64-*-linux,,ia64-*-linux}
+@uref{#ia64-x-linux,,ia64-*-linux}
@item
-@uref{#ia64-*-hpux*,,ia64-*-hpux*}
+@uref{#ia64-x-hpux,,ia64-*-hpux*}
@item
-@uref{#*-ibm-aix*,,*-ibm-aix*}
+@uref{#x-ibm-aix,,*-ibm-aix*}
@item
-@uref{#ip2k-*-elf,,ip2k-*-elf}
+@uref{#ip2k-x-elf,,ip2k-*-elf}
@item
-@uref{#iq2000-*-elf,,iq2000-*-elf}
+@uref{#iq2000-x-elf,,iq2000-*-elf}
@item
-@uref{#m32r-*-elf,,m32r-*-elf}
+@uref{#m32r-x-elf,,m32r-*-elf}
@item
@uref{#m6811-elf,,m6811-elf}
@item
@item
@uref{#m68k-hp-hpux,,m68k-hp-hpux}
@item
-@uref{#mips-*-*,,mips-*-*}
+@uref{#mips-x-x,,mips-*-*}
@item
@uref{#mips-sgi-irix5,,mips-sgi-irix5}
@item
@uref{#mips-sgi-irix6,,mips-sgi-irix6}
@item
-@uref{#powerpc*-*-*,,powerpc*-*-*, powerpc-*-sysv4}
+@uref{#powerpc-x-x,,powerpc*-*-*, powerpc-*-sysv4}
@item
-@uref{#powerpc-*-darwin*,,powerpc-*-darwin*}
+@uref{#powerpc-x-darwin,,powerpc-*-darwin*}
@item
-@uref{#powerpc-*-elf,,powerpc-*-elf, powerpc-*-sysv4}
+@uref{#powerpc-x-elf,,powerpc-*-elf, powerpc-*-sysv4}
@item
-@uref{#powerpc-*-linux-gnu*,,powerpc-*-linux-gnu*}
+@uref{#powerpc-x-linux-gnu,,powerpc*-*-linux-gnu*}
@item
-@uref{#powerpc-*-netbsd*,,powerpc-*-netbsd*}
+@uref{#powerpc-x-netbsd,,powerpc-*-netbsd*}
@item
-@uref{#powerpc-*-eabiaix,,powerpc-*-eabiaix}
+@uref{#powerpc-x-eabisim,,powerpc-*-eabisim}
@item
-@uref{#powerpc-*-eabisim,,powerpc-*-eabisim}
+@uref{#powerpc-x-eabi,,powerpc-*-eabi}
@item
-@uref{#powerpc-*-eabi,,powerpc-*-eabi}
+@uref{#powerpcle-x-elf,,powerpcle-*-elf, powerpcle-*-sysv4}
@item
-@uref{#powerpcle-*-elf,,powerpcle-*-elf, powerpcle-*-sysv4}
+@uref{#powerpcle-x-eabisim,,powerpcle-*-eabisim}
@item
-@uref{#powerpcle-*-eabisim,,powerpcle-*-eabisim}
+@uref{#powerpcle-x-eabi,,powerpcle-*-eabi}
@item
-@uref{#powerpcle-*-eabi,,powerpcle-*-eabi}
+@uref{#s390-x-linux,,s390-*-linux*}
@item
-@uref{#s390-*-linux*,,s390-*-linux*}
+@uref{#s390x-x-linux,,s390x-*-linux*}
@item
-@uref{#s390x-*-linux*,,s390x-*-linux*}
+@uref{#s390x-ibm-tpf,,s390x-ibm-tpf*}
@item
-@uref{#s390x-ibm-tpf*,,s390x-ibm-tpf*}
+@uref{#x-x-solaris2,,*-*-solaris2*}
@item
-@uref{#*-*-solaris2*,,*-*-solaris2*}
-@item
-@uref{#sparc-sun-solaris2*,,sparc-sun-solaris2*}
+@uref{#sparc-sun-solaris2,,sparc-sun-solaris2*}
@item
@uref{#sparc-sun-solaris2.7,,sparc-sun-solaris2.7}
@item
-@uref{#sparc-*-linux*,,sparc-*-linux*}
+@uref{#sparc-x-linux,,sparc-*-linux*}
@item
-@uref{#sparc64-*-solaris2*,,sparc64-*-solaris2*}
+@uref{#sparc64-x-solaris2,,sparc64-*-solaris2*}
@item
-@uref{#sparcv9-*-solaris2*,,sparcv9-*-solaris2*}
+@uref{#sparcv9-x-solaris2,,sparcv9-*-solaris2*}
@item
-@uref{#*-*-sysv*,,*-*-sysv*}
+@uref{#x-x-sysv,,*-*-sysv*}
@item
@uref{#vax-dec-ultrix,,vax-dec-ultrix}
@item
-@uref{#*-*-vxworks*,,*-*-vxworks*}
+@uref{#x-x-vxworks,,*-*-vxworks*}
@item
-@uref{#x86_64-*-*,,x86_64-*-*, amd64-*-*}
+@uref{#x86_64-x-x,,x86_64-*-*, amd64-*-*}
@item
-@uref{#xtensa-*-elf,,xtensa-*-elf}
+@uref{#xtensa-x-elf,,xtensa-*-elf}
@item
-@uref{#xtensa-*-linux*,,xtensa-*-linux*}
+@uref{#xtensa-x-linux,,xtensa-*-linux*}
@item
@uref{#windows,,Microsoft Windows}
@item
<!-- -------- host/target specific issues start here ---------------- -->
<hr />
@end html
-@heading @anchor{alpha*-*-*}alpha*-*-*
+@heading @anchor{alpha-x-x}alpha*-*-*
This section contains general configuration information for all
alpha-based platforms using ELF (in particular, ignore this section for
@html
<hr />
@end html
-@heading @anchor{alpha*-dec-osf*}alpha*-dec-osf*
+@heading @anchor{alpha-dec-osf}alpha*-dec-osf*
Systems using processors that implement the DEC Alpha architecture and
are running the DEC/Compaq Unix (DEC OSF/1, Digital UNIX, or Compaq
Tru64 UNIX) operating system, for example the DEC Alpha AXP systems.
@html
<hr />
@end html
-@heading @anchor{alphaev5-cray-unicosmk*}alphaev5-cray-unicosmk*
+@heading @anchor{alphaev5-cray-unicosmk}alphaev5-cray-unicosmk*
Cray T3E systems running Unicos/Mk.
This port is incomplete and has many known bugs. We hope to improve the
@html
<hr />
@end html
-@heading @anchor{arc-*-elf}arc-*-elf
+@heading @anchor{arc-x-elf}arc-*-elf
Argonaut ARC processor.
This configuration is intended for embedded systems.
@html
<hr />
@end html
-@heading @anchor{arm-*-elf}arm-*-elf
-@heading @anchor{xscale-*-*}xscale-*-*
+@heading @anchor{arm-x-elf}arm-*-elf
+@heading @anchor{xscale-x-x}xscale-*-*
ARM-family processors. Subtargets that use the ELF object format
require GNU binutils 2.13 or newer. Such subtargets include:
@code{arm-*-freebsd}, @code{arm-*-netbsdelf}, @code{arm-*-*linux},
@html
<hr />
@end html
-@heading @anchor{arm-*-coff}arm-*-coff
+@heading @anchor{arm-x-coff}arm-*-coff
ARM-family processors. Note that there are two different varieties
of PE format subtarget supported: @code{arm-wince-pe} and
@code{arm-pe} as well as a standard COFF target @code{arm-*-coff}.
@html
<hr />
@end html
-@heading @anchor{arm-*-aout}arm-*-aout
+@heading @anchor{arm-x-aout}arm-*-aout
ARM-family processors. These targets support the AOUT file format:
@code{arm-*-aout}, @code{arm-*-netbsd}.
@html
<hr />
@end html
+@heading @anchor{bfin}Blackfin
+
+The Blackfin processor, an Analog Devices DSP.
+@ifnothtml
+@xref{Blackfin Options,, Blackfin Options, gcc, Using and Porting the GNU
+Compiler Collection (GCC)},
+@end ifnothtml
+@ifhtml
+See ``Blackfin Options'' in the main manual
+@end ifhtml
+
+More information, and a version of binutils with support for this processor,
+is available at @uref{http://blackfin.uclinux.org}
+
+@html
+<hr />
+@end html
@heading @anchor{c4x}c4x
Texas Instruments TMS320C3x and TMS320C4x Floating Point Digital Signal
@html
<hr />
@end html
-@heading @anchor{*-*-freebsd*}*-*-freebsd*
+@heading @anchor{x-x-freebsd}*-*-freebsd*
The version of binutils installed in @file{/usr/bin} probably works with
-this release of GCC. However, on FreeBSD 4, bootstrapping against the
+this release of GCC@. However, on FreeBSD 4, bootstrapping against the
latest FSF binutils is known to improve overall testsuite results; and,
on FreeBSD/alpha, using binutils 2.14 or later is required to build libjava.
of @option{-g}, if you really want the old debugging format. There are
no known issues with mixing object files and libraries with different
debugging formats. Otherwise, this release of GCC should now match more
-of the configuration used in the stock FreeBSD configuration of GCC. In
+of the configuration used in the stock FreeBSD configuration of GCC@. In
particular, @option{--enable-threads} is now configured by default.
However, as a general user, do not attempt to replace the system
compiler with this release. Known to bootstrap and check with good
@html
<hr />
@end html
-@heading @anchor{hppa*-hp-hpux*}hppa*-hp-hpux*
+@heading @anchor{hppa-hp-hpux}hppa*-hp-hpux*
Support for HP-UX version 9 and older was discontinued in GCC 3.4.
We @emph{highly} recommend using gas/binutils on all hppa platforms;
Specifically, @option{-g} does not work on HP-UX (since that system
uses a peculiar debugging format which GCC does not know about), unless
-you use GAS and GDB. It may be helpful to configure GCC with the
+you use GAS and GDB@. It may be helpful to configure GCC with the
@uref{./configure.html#with-gnu-as,,@option{--with-gnu-as}} and
-@option{--with-as=@dots{}} options to ensure that GCC can find GAS.
+@option{--with-as=@dots{}} options to ensure that GCC can find GAS@.
If you wish to use the pa-risc 2.0 architecture support with a 32-bit
runtime, you must use either the HP assembler, or gas/binutils 2.11
TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different
default scheduling model is desired.
-As of GCC 3.5, GCC uses the UNIX 95 namespace for HP-UX 10.10
+As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10
through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later.
This namespace change might cause problems when bootstrapping with
an earlier version of GCC or the HP compiler as essentially the same
@html
<hr />
@end html
-@heading @anchor{hppa*-hp-hpux10}hppa*-hp-hpux10
+@heading @anchor{hppa-hp-hpux10}hppa*-hp-hpux10
For hpux10.20, we @emph{highly} recommend you pick up the latest sed patch
@code{PHCO_19798} from HP@. HP has two sites which provide patches free of
You should be able to continue by saying @samp{make all} after getting
the failure from @samp{make bootstrap}.
-GCC 3.5 requires CVS binutils as of April 28, 2004 or later. Earlier
+GCC 4.0 requires CVS binutils as of April 28, 2004 or later. Earlier
versions require binutils 2.8 or later.
-The C++ ABI has changed incompatibly in GCC 3.5. COMDAT subspaces are
+The C++ ABI has changed incompatibly in GCC 4.0. COMDAT subspaces are
used for one-only code and data. This resolves many of the previous
problems in using C++ on this target. However, the ABI is not compatible
with the one implemented under HP-UX 11 using secondary definitions.
@html
<hr />
@end html
-@heading @anchor{hppa*-hp-hpux11}hppa*-hp-hpux11
+@heading @anchor{hppa-hp-hpux11}hppa*-hp-hpux11
GCC 3.0 and up support HP-UX 11. GCC 2.95.x is not supported and cannot
be used to compile GCC 3.0 and up.
Refer to @uref{binaries.html,,binaries} for information about obtaining
-precompiled GCC binaries for HP-UX. Precompiled binaries must be obtained
-to build the Ada language as it can't be bootstrapped using C. Ada is
+precompiled GCC binaries for HP-UX@. Precompiled binaries must be obtained
+to build the Ada language as it can't be bootstrapped using C@. Ada is
only available for the 32-bit PA-RISC runtime. The libffi and libjava
haven't been ported to HP-UX and don't build.
There are several possible approaches to building the distribution.
Binutils can be built first using the HP tools. Then, the GCC
distribution can be built. The second approach is to build GCC
-first using the HP tools, then build binutils, then rebuild GCC.
+first using the HP tools, then build binutils, then rebuild GCC@.
There have been problems with various binary distributions, so it
is best not to start from a binary distribution.
commands. The default linker is determined during configuration. As a
result, it's not possible to switch linkers in the middle of a GCC build.
This has been been reported to sometimes occur in unified builds of
-binutils and GCC.
+binutils and GCC@.
GCC 3.0 through 3.2 require binutils 2.11 or above. GCC 3.3 through
-GCC 3.5 require binutils 2.14 or later.
+GCC 4.0 require binutils 2.14 or later.
Although the HP assembler can be used for an initial build, it shouldn't
be used with any languages other than C and perhaps Fortran due to its
@html
<hr />
@end html
-@heading @anchor{*-*-linux-gnu}*-*-linux-gnu
+@heading @anchor{x-x-linux-gnu}*-*-linux-gnu
Versions of libstdc++-v3 starting with 3.2.1 require bugfixes present
in glibc 2.2.5 and later. More information is available in the
@html
<hr />
@end html
-@heading @anchor{ix86-*-linux*aout}i?86-*-linux*aout
+@heading @anchor{ix86-x-linuxaout}i?86-*-linux*aout
Use this configuration to generate @file{a.out} binaries on Linux-based
GNU systems. This configuration is being superseded.
@html
<hr />
@end html
-@heading @anchor{ix86-*-linux*}i?86-*-linux*
+@heading @anchor{ix86-x-linux}i?86-*-linux*
As of GCC 3.3, binutils 2.13.1 or later is required for this platform.
See @uref{http://gcc.gnu.org/PR10877,,bug 10877} for more information.
@html
<hr />
@end html
-@heading @anchor{ix86-*-sco3.2v5*}i?86-*-sco3.2v5*
+@heading @anchor{ix86-x-sco3.2v5}i?86-*-sco3.2v5*
Use this for the SCO OpenServer Release 5 family of operating systems.
Unlike earlier versions of GCC, the ability to generate COFF with this
@html
<hr />
@end html
-@heading @anchor{ix86-*-udk}i?86-*-udk
+@heading @anchor{ix86-x-solaris2.10}i?86-*-solaris2.10
+Use this for Solaris 10 or later on x86 and x86-64 systems. This
+configuration is supported by GCC 4.0 and later versions only.
+
+It is recommended that you configure GCC to use the GNU assembler in
+@file{/usr/sfw/bin/gas} but the Sun linker, using the options
+@option{--with-gnu-as --with-as=/usr/sfw/bin/gas --without-gnu-ld
+--with-ld=/usr/ccs/bin/ld}.
+
+@html
+<hr />
+@end html
+@heading @anchor{ix86-x-udk}i?86-*-udk
This target emulates the SCO Universal Development Kit and requires that
package be installed. (If it is installed, you will have a
@html
<hr />
@end html
-@heading @anchor{ia64-*-linux}ia64-*-linux
+@heading @anchor{ia64-x-linux}ia64-*-linux
IA-64 processor (also known as IPF, or Itanium Processor Family)
running GNU/Linux.
@html
<hr />
@end html
-@heading @anchor{ia64-*-hpux*}ia64-*-hpux*
-Building GCC on this target requires the GNU Assembler. The bundled HP
-assembler will not work. To prevent GCC from using the wrong assembler,
+@heading @anchor{ia64-x-hpux}ia64-*-hpux*
+Building GCC on this target requires the GNU Assembler. The bundled HP
+assembler will not work. To prevent GCC from using the wrong assembler,
the option @option{--with-gnu-as} may be necessary.
-The GCC libunwind library has not been ported to HPUX. This means that for
+The GCC libunwind library has not been ported to HPUX@. This means that for
GCC versions 3.2.3 and earlier, @option{--enable-libunwind-exceptions}
-is required to build GCC. For GCC 3.3 and later, this is the default.
+is required to build GCC@. For GCC 3.3 and later, this is the default.
For gcc 3.4.3 and later, @option{--enable-libunwind-exceptions} is
removed and the system libunwind library will always be used.
<hr />
<!-- rs6000-ibm-aix*, powerpc-ibm-aix* -->
@end html
-@heading @anchor{*-ibm-aix*}*-ibm-aix*
+@heading @anchor{x-ibm-aix}*-ibm-aix*
Support for AIX version 3 and older was discontinued in GCC 3.4.
AIX Make frequently has problems with GCC makefiles. GNU Make 3.79.1 or
newer is recommended to build on this platform.
+``out of memory'' bootstrap failures may indicate a problem with
+process resource limits (ulimit). Hard limits are configured in the
+@file{/etc/security/limits} system configuration file.
+
To speed up the configuration phases of bootstrapping and installing GCC,
one may use GNU Bash instead of AIX @command{/bin/sh}, e.g.,
is the version of Make (see above).
The native @command{as} and @command{ld} are recommended for bootstrapping
-on AIX 4 and required for bootstrapping on AIX 5L. The GNU Assembler
+on AIX 4 and required for bootstrapping on AIX 5L@. The GNU Assembler
reports that it supports WEAK symbols on AIX 4, which causes GCC to try to
utilize weak symbol functionality although it is not supported. The GNU
-Assembler and Linker do not support AIX 5L sufficiently to bootstrap GCC.
+Assembler and Linker do not support AIX 5L sufficiently to bootstrap GCC@.
The native AIX tools do interoperate with GCC@.
Building @file{libstdc++.a} requires a fix for an AIX Assembler bug
@html
<hr />
@end html
-@heading @anchor{ip2k-*-elf}ip2k-*-elf
+@heading @anchor{ip2k-x-elf}ip2k-*-elf
Ubicom IP2022 micro controller.
This configuration is intended for embedded systems.
There are no standard Unix configurations.
@html
<hr />
@end html
-@heading @anchor{iq2000-*-elf}iq2000-*-elf
+@heading @anchor{iq2000-x-elf}iq2000-*-elf
Vitesse IQ2000 processors. These are used in embedded
applications. There are no standard Unix configurations.
@html
<hr />
@end html
-@heading @anchor{m32r-*-elf}m32r-*-elf
+@heading @anchor{m32r-x-elf}m32r-*-elf
Renesas M32R processor.
This configuration is intended for embedded systems.
@html
<hr />
@end html
-@heading @anchor{mips-*-*}mips-*-*
+@heading @anchor{mips-x-x}mips-*-*
If on a MIPS system you get an error message saying ``does not have gp
sections for all it's [sic] sectons [sic]'', don't worry about it. This
happens whenever you use GAS with the MIPS linker, but there is not
generating either a conditional trap or a break instruction. Using
trap results in smaller code, but is only supported on MIPS II and
later. Also, some versions of the Linux kernel have a bug that
-prevents trap from generating the proper signal (SIGFPE). To enable
+prevents trap from generating the proper signal (@code{SIGFPE}). To enable
the use of break, use the @option{--with-divide=breaks}
-@command{configure} option when configuring GCC. The default is to
+@command{configure} option when configuring GCC@. The default is to
use traps on systems that support them.
Cross-compilers for the Mips as target using the Mips assembler
@html
<hr />
@end html
-@heading @anchor{powerpc*-*-*}powerpc-*-*
+@heading @anchor{powerpc-x-x}powerpc-*-*
You can specify a default version for the @option{-mcpu=@var{cpu_type}}
switch by using the configure option @option{--with-cpu-@var{cpu_type}}.
@html
<hr />
@end html
-@heading @anchor{powerpc-*-darwin*}powerpc-*-darwin*
+@heading @anchor{powerpc-x-darwin}powerpc-*-darwin*
PowerPC running Darwin (Mac OS X kernel).
Pre-installed versions of Mac OS X may not include any developer tools,
meaning that you will not be able to build GCC from source. Tool
binaries are available at
-@uref{http://developer.apple.com/tools/compilers.html} (free
+@uref{http://developer.apple.com/darwin/projects/compiler/} (free
registration required).
This version of GCC requires at least cctools-528.
@html
<hr />
@end html
-@heading @anchor{powerpc-*-elf}powerpc-*-elf, powerpc-*-sysv4
+@heading @anchor{powerpc-x-elf}powerpc-*-elf, powerpc-*-sysv4
PowerPC system in big endian mode, running System V.4.
@html
<hr />
@end html
-@heading @anchor{powerpc-*-linux-gnu*}powerpc-*-linux-gnu*
+@heading @anchor{powerpc-x-linux-gnu}powerpc*-*-linux-gnu*
You will need
-@uref{ftp://ftp.kernel.org/pub/linux/devel/binutils,,binutils 2.13.90.0.10}
+@uref{ftp://ftp.kernel.org/pub/linux/devel/binutils,,binutils 2.15}
or newer for a working GCC@.
@html
<hr />
@end html
-@heading @anchor{powerpc-*-netbsd*}powerpc-*-netbsd*
+@heading @anchor{powerpc-x-netbsd}powerpc-*-netbsd*
PowerPC system in big endian mode running NetBSD@. To build the
documentation you will need Texinfo version 4.2 (NetBSD 1.5.1 included
Texinfo version 3.12).
@html
<hr />
@end html
-@heading @anchor{powerpc-*-eabisim}powerpc-*-eabisim
+@heading @anchor{powerpc-x-eabisim}powerpc-*-eabisim
Embedded PowerPC system in big endian mode for use in running under the
PSIM simulator.
@html
<hr />
@end html
-@heading @anchor{powerpc-*-eabi}powerpc-*-eabi
+@heading @anchor{powerpc-x-eabi}powerpc-*-eabi
Embedded PowerPC system in big endian mode.
@html
<hr />
@end html
-@heading @anchor{powerpcle-*-elf}powerpcle-*-elf, powerpcle-*-sysv4
+@heading @anchor{powerpcle-x-elf}powerpcle-*-elf, powerpcle-*-sysv4
PowerPC system in little endian mode, running System V.4.
@html
<hr />
@end html
-@heading @anchor{powerpcle-*-eabisim}powerpcle-*-eabisim
+@heading @anchor{powerpcle-x-eabisim}powerpcle-*-eabisim
Embedded PowerPC system in little endian mode for use in running under
the PSIM simulator.
@html
<hr />
@end html
-@heading @anchor{powerpcle-*-eabi}powerpcle-*-eabi
+@heading @anchor{powerpcle-x-eabi}powerpcle-*-eabi
Embedded PowerPC system in little endian mode.
@html
<hr />
@end html
-@heading @anchor{s390-*-linux*}s390-*-linux*
+@heading @anchor{s390-x-linux}s390-*-linux*
S/390 system running GNU/Linux for S/390@.
@html
<hr />
@end html
-@heading @anchor{s390x-*-linux*}s390x-*-linux*
+@heading @anchor{s390x-x-linux}s390x-*-linux*
zSeries system (64-bit) running GNU/Linux for zSeries@.
@html
<hr />
@end html
-@heading @anchor{s390x-ibm-tpf*}s390x-ibm-tpf*
-zSeries system (64-bit) running TPF. This platform is
+@heading @anchor{s390x-ibm-tpf}s390x-ibm-tpf*
+zSeries system (64-bit) running TPF@. This platform is
supported as cross-compilation target only.
@html
@c with 2.0 until 2.6, 7, 8, etc. Solaris 1 was a marketing name for
@c SunOS 4 releases which we don't use to avoid confusion. Solaris
@c alone is too unspecific and must be avoided.
-@heading @anchor{*-*-solaris2*}*-*-solaris2*
+@heading @anchor{x-x-solaris2}*-*-solaris2*
Sun does not ship a C compiler with Solaris 2. To bootstrap and install
GCC you first have to install a pre-built compiler, see the
@html
<hr />
@end html
-@heading @anchor{sparc-sun-solaris2*}sparc-sun-solaris2*
+@heading @anchor{sparc-sun-solaris2}sparc-sun-solaris2*
When GCC is configured to use binutils 2.11.2 or later the binaries
produced are smaller than the ones produced using Sun's native tools;
To work around this problem, compile with @option{-gstabs+} instead of
plain @option{-g}.
+When configuring the GNU Multiple Precision Library (GMP) on a Solaris 7
+or later system, the canonical target triplet must be specified as the
+@command{build} parameter on the configure line:
+
+@smallexample
+./configure --build=sparc-sun-solaris2.7 --prefix=xxx --enable-mpfr
+@end smallexample
+
@html
<hr />
@end html
GCC 3.3 triggers a bug in version 5.0 Alpha 03/27/98 of the Sun assembler,
which causes a bootstrap failure when linking the 64-bit shared version of
-libgcc. A typical error message is:
+libgcc. A typical error message is:
@smallexample
ld: fatal: relocation error: R_SPARC_32: file libgcc/sparcv9/_muldi3.o:
@html
<hr />
@end html
-@heading @anchor{sparc-*-linux*}sparc-*-linux*
+@heading @anchor{sparc-x-linux}sparc-*-linux*
GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4
or newer on this platform. All earlier binutils and glibc
@html
<hr />
@end html
-@heading @anchor{sparc64-*-solaris2*}sparc64-*-solaris2*
+@heading @anchor{sparc64-x-solaris2}sparc64-*-solaris2*
The following compiler flags must be specified in the configure
step in order to bootstrap this target with the Sun compiler:
@html
<hr />
@end html
-@heading @anchor{sparcv9-*-solaris2*}sparcv9-*-solaris2*
+@heading @anchor{sparcv9-x-solaris2}sparcv9-*-solaris2*
This is a synonym for sparc64-*-solaris2*.
@html
<hr />
@end html
-@heading @anchor{#*-*-sysv*}*-*-sysv*
+@heading @anchor{x-x-sysv}*-*-sysv*
On System V release 3, you may get this error message
while linking:
@html
<hr />
@end html
-@heading @anchor{*-*-vxworks*}*-*-vxworks*
+@heading @anchor{x-x-vxworks}*-*-vxworks*
Support for VxWorks is in flux. At present GCC supports @emph{only} the
-very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC.
+very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC@.
We welcome patches for other architectures supported by VxWorks 5.5.
Support for VxWorks AE would also be welcome; we believe this is merely
a matter of writing an appropriate ``configlette'' (see below). We are
Choose an installation @var{prefix} entirely outside @var{$WIND_BASE}.
Before running @command{configure}, create the directories @file{@var{prefix}}
and @file{@var{prefix}/bin}. Link or copy the appropriate assembler,
-linker, etc. into @file{@var{prefix}/bin}, and set your @var{PATH} to
+linker, etc.@: into @file{@var{prefix}/bin}, and set your @var{PATH} to
include that directory while running both @command{configure} and
@command{make}.
@html
<hr />
@end html
-@heading @anchor{x86_64-*-*}x86_64-*-*, amd64-*-*
+@heading @anchor{x86_64-x-x}x86_64-*-*, amd64-*-*
GCC supports the x86-64 architecture implemented by the AMD64 processor
-(amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD.
+(amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD@.
On GNU/Linux the default is a bi-arch compiler which is able to generate
both 64-bit x86-64 and 32-bit x86 code (via the @option{-m32} switch).
@html
<hr />
@end html
-@heading @anchor{xtensa-*-elf}xtensa-*-elf
+@heading @anchor{xtensa-x-elf}xtensa-*-elf
This target is intended for embedded Xtensa systems using the
@samp{newlib} C library. It uses ELF but does not support shared
@html
<hr />
@end html
-@heading @anchor{xtensa-*-linux*}xtensa-*-linux*
+@heading @anchor{xtensa-x-linux}xtensa-*-linux*
This target is for Xtensa systems running GNU/Linux. It supports ELF
shared objects and the GNU C library (glibc). It also generates