@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, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright @copyright{} 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
+1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008 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{zsh} is not a fully compliant POSIX shell and will not
work when configuring GCC@.
+@item A POSIX or SVR4 awk
+
+Necessary for creating some of the generated source files for GCC@.
+If in doubt, use a recent GNU awk version, as some of the older ones
+are broken. GNU awk version 3.1.5 is known to work.
+
@item GNU binutils
Necessary in some circumstances, optional in others. See the
Necessary to build GCC@. If you do not have it installed in your
library search path, you will have to configure with the
-@option{--with-gmp} configure option. See also
-@option{--with-gmp-lib} and @option{--with-gmp-include}.
+@option{--with-gmp} configure option. See also @option{--with-gmp-lib}
+and @option{--with-gmp-include}. Alternatively, if a GMP source
+distribution is found in a subdirectory of your GCC sources named
+@file{gmp}, it will be built together with GCC@.
-@item MPFR Library version 2.3.0 (or later)
+@item MPFR Library version 2.3.2 (or later)
Necessary to build GCC@. It can be downloaded from
@uref{http://www.mpfr.org/}. The version of MPFR that is bundled with
to the recommended version of MPFR.
The @option{--with-mpfr} configure option should be used if your MPFR
-Library is not installed in your default library search path. See
-also @option{--with-mpfr-lib} and @option{--with-mpfr-include}.
+Library is not installed in your default library search path. See also
+@option{--with-mpfr-lib} and @option{--with-mpfr-include}.
+Alternatively, if a MPFR source distribution is found in a subdirectory
+of your GCC sources named @file{mpfr}, it will be built together with
+GCC@.
+
+@item Parma Polyhedra Library (PPL) version 0.10
+
+Necessary to build GCC with the Graphite loop optimizations.
+It can be downloaded from @uref{http://www.cs.unipr.it/ppl/Download/}.
+
+The @option{--with-ppl} configure option should be used if PPL is not
+installed in your default library search path.
+
+@item CLooG-PPL version 0.15
+
+Necessary to build GCC with the Graphite loop optimizations. It can
+be downloaded from @uref{ftp://gcc.gnu.org/pub/gcc/infrastructure/}.
+The code in @file{cloog-ppl-0.15.tar.gz} comes from a branch of CLooG
+available from @uref{http://repo.or.cz/w/cloog-ppl.git}. CLooG-PPL
+should be configured with @option{--with-ppl}.
+
+The @option{--with-cloog} configure option should be used if CLooG is
+not installed in your default library search path.
@item @command{jar}, or InfoZIP (@command{zip} and @command{unzip})
files are not included in the SVN repository. They are included in
releases.
-@item Texinfo version 4.4 (or later)
+@item Texinfo version 4.7 (or later)
Necessary for running @command{makeinfo} when modifying @file{*.texi}
files to test your changes.
@uref{ftp://sourceware.org/pub/java/}, or by running the script
@command{contrib/download_ecj}.
+@item antlr.jar version 2.7.1 (or later)
+@itemx antlr binary
+
+If you wish to build the @command{gjdoc} binary in libjava, you will
+need to have a @file{antlr.jar} library available. The library is
+searched in system locations but can be configured with
+@option{--with-antlr-jar=} instead. When configuring with
+@option{--enable-java-maintainer-mode}, you will need to have one of
+the executables named @command{cantlr}, @command{runantlr} or
+@command{antlr} in your path.
+
@end table
@html
(@file{bfd}, @file{binutils}, @file{gas}, @file{gprof}, @file{ld},
@file{opcodes}, @dots{}) to the directory containing the GCC sources.
+Likewise, the GMP and MPFR libraries can be automatically built together
+with GCC. Unpack the GMP and/or MPFR source distributions in the
+directory containing the GCC sources and rename their directories to
+@file{gmp} and @file{mpfr}, respectively (or use symbolic links with the
+same name).
+
@html
<hr />
<p>
@item --libexecdir=@var{dirname}
Specify the installation directory for internal executables of GCC@.
- The default is @file{@var{exec-prefix}/libexec}.
+The default is @file{@var{exec-prefix}/libexec}.
@item --with-slibdir=@var{dirname}
Specify the installation directory for the shared libgcc library. The
This is an alias for @option{--enable-tls=no}.
@item --with-cpu=@var{cpu}
+@itemx --with-cpu-32=@var{cpu}
+@itemx --with-cpu-64=@var{cpu}
Specify which cpu variant the compiler should generate code for by default.
@var{cpu} will be used as the default value of the @option{-mcpu=} switch.
This option is only supported on some targets, including ARM, i386, M68k,
-PowerPC, and SPARC@.
+PowerPC, and SPARC@. The @option{--with-cpu-32} and
+@option{--with-cpu-64} options specify separate default CPUs for
+32-bit and 64-bit modes; these options are only supported for i386 and
+x86-64.
@item --with-schedule=@var{cpu}
@itemx --with-arch=@var{cpu}
+@itemx --with-arch-32=@var{cpu}
+@itemx --with-arch-64=@var{cpu}
@itemx --with-tune=@var{cpu}
+@itemx --with-tune-32=@var{cpu}
+@itemx --with-tune-64=@var{cpu}
@itemx --with-abi=@var{abi}
@itemx --with-fpu=@var{type}
@itemx --with-float=@var{type}
On MIPS targets, make @option{-mno-llsc} the default when no
@option{-mllsc} option is passed.
+@item --with-mips-plt
+On MIPS targets, make use of copy relocations and PLTs.
+These features are extensions to the traditional
+SVR4-based MIPS ABIs and require support from GNU binutils
+and the runtime C library.
+
@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.
@itemx --enable-decimal-float=dpd
@itemx --disable-decimal-float
Enable (or disable) support for the C decimal floating point extension
-that is in the IEEE 754R extension to the IEEE754 floating point
-standard. This is enabled by default only on PowerPC, i386, and
-x86_64 GNU/Linux systems. Other systems may also support it, but
-require the user to specifically enable it. You can optionally
-control which decimal floating point format is used (either @samp{bid}
-or @samp{dpd}). The @samp{bid} (binary integer decimal) format is
-default on i386 and x86_64 systems, and the @samp{dpd} (densely packed
-decimal) format is default on PowerPC systems.
+that is in the IEEE 754-2008 standard. This is enabled by default only
+on PowerPC, i386, and x86_64 GNU/Linux systems. Other systems may also
+support it, but require the user to specifically enable it. You can
+optionally control which decimal floating point format is used (either
+@samp{bid} or @samp{dpd}). The @samp{bid} (binary integer decimal)
+format is default on i386 and x86_64 systems, and the @samp{dpd}
+(densely packed decimal) format is default on PowerPC systems.
@item --enable-fixed-point
@itemx --disable-fixed-point
shorthand assumptions are not correct, you can use the explicit
include and lib options directly.
+@item --with-ppl=@var{pathname}
+@itemx --with-ppl-include=@var{pathname}
+@itemx --with-ppl-lib=@var{pathname}
+@itemx --with-cloog=@var{pathname}
+@itemx --with-cloog-include=@var{pathname}
+@itemx --with-cloog-lib=@var{pathname}
+If you do not have PPL (the Parma Polyhedra Library) and the CLooG
+libraries installed in a standard location and you want to build GCC,
+you can explicitly specify the directory where they are installed
+(@samp{--with-ppl=@var{pplinstalldir}},
+@samp{--with-cloog=@var{clooginstalldir}}). The
+@option{--with-ppl=@var{pplinstalldir}} option is shorthand for
+@option{--with-ppl-lib=@var{pplinstalldir}/lib} and
+@option{--with-ppl-include=@var{pplinstalldir}/include}. Likewise the
+@option{--with-cloog=@var{clooginstalldir}} option is shorthand for
+@option{--with-cloog-lib=@var{clooginstalldir}/lib} and
+@option{--with-cloog-include=@var{clooginstalldir}/include}. If these
+shorthand assumptions are not correct, you can use the explicit
+include and lib options directly.
+
@item --with-debug-prefix-map=@var{map}
Convert source directory names using @option{-fdebug-prefix-map} when
building runtime libraries. @samp{@var{map}} is a space-separated
dependencies when statically linking to libgcj. However it makes it
impossible to override the affected portions of libgcj at run-time.
+@item --enable-reduced-reflection
+Build most of libgcj with @option{-freduced-reflection}. This reduces
+the size of libgcj at the expense of not being able to do accurate
+reflection on the classes it contains. This option is safe if you
+know that code using libgcj will never use reflection on the standard
+runtime classes in libgcj (including using serialization, RMI or CORBA).
+
@item --with-ecos
Enable runtime eCos target support.
@item --with-win32-nlsapi=ansi, unicows or unicode
Indicates how MinGW @samp{libgcj} translates between UNICODE
characters and the Win32 API@.
+
+@item --enable-java-home
+If enabled, this creates a JPackage compatible SDK environment during install.
+Note that if --enable-java-home is used, --with-arch-directory=ARCH must also
+be specified.
+
+@item --with-arch-directory=ARCH
+Specifies the name to use for the @file{jre/lib/ARCH} directory in the SDK
+environment created when --enable-java-home is passed. Typical names for this
+directory include i386, amd64, ia64, etc.
+
+@item --with-os-directory=DIR
+Specifies the OS directory for the SDK include directory. This is set to auto
+detect, and is typically 'linux'.
+
+@item --with-origin-name=NAME
+Specifies the JPackage origin name. This defaults to the 'gcj' in
+java-1.5.0-gcj.
+
+@item --with-arch-suffix=SUFFIX
+Specifies the suffix for the sdk directory. Defaults to the empty string.
+Examples include '.x86_64' in 'java-1.5.0-gcj-1.5.0.0.x86_64'.
+
+@item --with-jvm-root-dir=DIR
+Specifies where to install the SDK. Default is $(prefix)/lib/jvm.
+
+@item --with-jvm-jar-dir=DIR
+Specifies where to install jars. Default is $(prefix)/lib/jvm-exports.
+
+@item --with-python-dir=DIR
+Specifies where to install the Python modules used for aot-compile. DIR should
+not include the prefix used in installation. For example, if the Python modules
+are to be installed in /usr/lib/python2.5/site-packages, then
+--with-python-dir=/lib/python2.5/site-packages should be passed. If this is
+not specified, then the Python modules are installed in $(prefix)/share/python.
+
+@item --enable-aot-compile-rpm
+Adds aot-compile-rpm to the list of installed scripts.
+
@table @code
@item ansi
Use the single-byte @code{char} and the Win32 A functions natively,
build the C front end.
When building from SVN or snapshots, or if you modify Texinfo
-documentation, you need version 4.4 or later of Texinfo installed if you
+documentation, you need version 4.7 or later of Texinfo installed if you
want Info documentation to be regenerated. Releases contain Info
documentation pre-built for the unmodified documentation in the release.
@uref{../bugs.html,,bug reporting guidelines}.
If you want to print the GCC manuals, do @samp{cd @var{objdir}; make
-dvi}. You will need to have @command{texi2dvi} (version at least 4.4)
+dvi}. You will need to have @command{texi2dvi} (version at least 4.7)
and @TeX{} installed. This creates a number of @file{.dvi} files in
subdirectories of @file{@var{objdir}}; these may be converted for
printing with programs such as @command{dvips}. Alternately, by using
@uref{http://www.bullfreeware.com,,Bull's Freeware and Shareware Archive for AIX};
@item
-@uref{http://pware.hvcc.edu,,Hudson Valley Community College Open Source Softeware for IBM System p};
+@uref{http://pware.hvcc.edu,,Hudson Valley Community College Open Source Software for IBM System p};
@item
@uref{http://www.perzl.org/aix,,AIX 5L and 6 Open Source Packages}.
@item
@uref{#x86-64-x-x,,x86_64-*-*, amd64-*-*}
@item
-@uref{#xtensa-x-elf,,xtensa-*-elf}
+@uref{#xtensa-x-elf,,xtensa*-*-elf}
@item
-@uref{#xtensa-x-linux,,xtensa-*-linux*}
+@uref{#xtensa-x-linux,,xtensa*-*-linux*}
@item
@uref{#windows,,Microsoft Windows}
@item
+@uref{#x-x-cygwin,,*-*-cygwin}
+@item
+@uref{#x-x-interix,,*-*-interix}
+@item
+@uref{#x-x-mingw,,*-*-mingw}
+@item
@uref{#os2,,OS/2}
@item
@uref{#older,,Older systems}
search for ld. The two linkers supported on this target require different
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@.
+This has been reported to sometimes occur in unified builds of binutils
+and GCC@.
GCC 3.0 through 3.2 require binutils 2.11 or above. GCC 3.3 through
GCC 4.0 require binutils 2.14 or later.
@end html
@heading @anchor{m68k-x-x}m68k-*-*
By default, @samp{m68k-*-aout}, @samp{m68k-*-coff*},
-@samp{m68k-*-elf*}, @samp{m68k-*-rtems} and @samp{m68k-*-uclinux}
+@samp{m68k-*-elf*}, @samp{m68k-*-rtems}, @samp{m68k-*-uclinux} and
+@samp{m68k-*-linux}
build libraries for both M680x0 and ColdFire processors. If you only
need the M680x0 libraries, you can omit the ColdFire ones by passing
@option{--with-arch=m68k} to @command{configure}. Alternatively, you
can omit the M680x0 libraries by passing @option{--with-arch=cf} to
-@command{configure}. These targets default to 5206 code when
+@command{configure}. These targets default to 5206 or 5475 code as
+appropriate for the target system when
configured with @option{--with-arch=cf} and 68020 code otherwise.
-The @samp{m68k-*-linux-gnu}, @samp{m68k-*-netbsd} and
+The @samp{m68k-*-netbsd} and
@samp{m68k-*-openbsd} targets also support the @option{--with-arch}
option. They will generate ColdFire CFV4e code when configured with
@option{--with-arch=cf} and 68020 code otherwise.
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}}.
+You will need
+@uref{ftp://ftp.kernel.org/pub/linux/devel/binutils,,binutils 2.15}
+or newer for a working GCC@.
+
@html
<hr />
@end html
@end html
@heading @anchor{powerpc-x-linux-gnu}powerpc*-*-linux-gnu*
-You will need
-@uref{ftp://ftp.kernel.org/pub/linux/devel/binutils,,binutils 2.15}
-or newer for a working GCC@.
+PowerPC system in big endian mode running Linux.
@html
<hr />
@end html
@heading @anchor{powerpc-x-netbsd}powerpc-*-netbsd*
-PowerPC system in big endian mode running NetBSD@. To build the
-documentation you will need Texinfo version 4.4 (NetBSD 1.5.1 included
-Texinfo version 3.12).
+PowerPC system in big endian mode running NetBSD@.
@html
<hr />
@html
<hr />
@end html
-@heading @anchor{xtensa-x-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-x-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
position-independent code (PIC) regardless of whether the
@option{-fpic} or @option{-fPIC} options are used. In other
respects, this target is the same as the
-@uref{#xtensa-*-elf,,@samp{xtensa-*-elf}} target.
+@uref{#xtensa*-*-elf,,@samp{xtensa*-*-elf}} target.
+
+@html
+<hr />
+@end html
+@heading @anchor{windows}Microsoft Windows
+
+@subheading Intel 16-bit versions
+The 16-bit versions of Microsoft Windows, such as Windows 3.1, are not
+supported.
+
+However, the 32-bit port has limited support for Microsoft
+Windows 3.11 in the Win32s environment, as a target only. See below.
+
+@subheading Intel 32-bit versions
+
+The 32-bit versions of Windows, including Windows 95, Windows NT, Windows
+XP, and Windows Vista, are supported by several different target
+platforms. These targets differ in which Windows subsystem they target
+and which C libraries are used.
+
+@itemize
+@item Cygwin @uref{#x-x-cygwin,,*-*-cygwin}: Cygwin provides a user-space
+Linux API emulation layer in the Win32 subsystem.
+@item Interix @uref{#x-x-interix,,*-*-interix}: The Interix subsystem
+provides native support for POSIX.
+@item MinGW @uref{#x-x-mingw,,*-*-mingw}: MinGW is a native GCC port for
+the Win32 subsystem that provides a subset of POSIX.
+@item MKS i386-pc-mks: NuTCracker from MKS. See
+@uref{http://www.mkssoftware.com/} for more information.
+@end itemize
+
+@subheading Intel 64-bit versions
+
+GCC contains support for x86-64 using the mingw-w64
+runtime library, available from @uref{http://mingw-w64.sourceforge.net/}.
+This library should be used with the target triple x86_64-pc-mingw32.
+
+Presently Windows for Itanium is not supported.
+
+@subheading Windows CE
+
+Windows CE is supported as a target only on ARM (arm-wince-pe), Hitachi
+SuperH (sh-wince-pe), and MIPS (mips-wince-pe).
+
+@subheading Other Windows Platforms
+
+GCC no longer supports Windows NT on the Alpha or PowerPC.
+
+GCC no longer supports the Windows POSIX subsystem. However, it does
+support the Interix subsystem. See above.
+
+Old target names including *-*-winnt and *-*-windowsnt are no longer used.
+
+PW32 (i386-pc-pw32) support was never completed, and the project seems to
+be inactive. See @uref{http://pw32.sourceforge.net/} for more information.
+
+UWIN support has been removed due to a lack of maintenance.
@html
<hr />
@end html
-@heading @anchor{windows}Microsoft Windows (32-bit)
+@heading @anchor{x-x-cygwin}*-*-cygwin
Ports of GCC are included with the
@uref{http://www.cygwin.com/,,Cygwin environment}.
GCC will build under Cygwin without modification; it does not build
with Microsoft's C++ compiler and there are no plans to make it do so.
-For MinGW, GCC will build with and support only MinGW runtime 3.12 and later.
+Cygwin can be compiled with i?86-pc-cygwin.
+
+@html
+<hr />
+@end html
+@heading @anchor{x-x-interix}*-*-interix
+
+The Interix target is used by OpenNT, Interix, Services For UNIX (SFU),
+and Subsystem for UNIX-based Applications (SUA). Applications compiled
+with this target run in the Interix subsystem, which is separate from
+the Win32 subsystem. This target was last known to work in GCC 3.3.
+
+For more information, see @uref{http://www.interix.com/}.
+
+@html
+<hr />
+@end html
+@heading @anchor{x-x-mingw32}*-*-mingw32
+
+GCC will build with and support only MinGW runtime 3.12 and later.
Earlier versions of headers are incompatible with the new default semantics
of @code{extern inline} in @code{-std=c99} and @code{-std=gnu99} modes.
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