GCC 3.0 is now available.
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This release contains many new features and improvements. The
9 a( y& j4 o. S0 ~, f; f! d. }highlights include:
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- Support for Java, including the GNU implementation of the Java
2 e/ m2 C3 Z* g0 r3 [& y8 ^ run-time library.
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- A new x86 back-end, which generates faster code.
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8 n1 p- D# x7 i3 E - A more efficient, more standards-compliant C++ compiler,
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using an industry standard C++ ABI.
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- A new, standards-conformant, implementation of the C++ standard
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library.
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% t3 Z$ m* _5 \0 C& M& v5 o - Improved optimizations.
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1 K* v, j9 D6 ~ - Improved documentation.
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* ?# f6 c! u& Y9 E4 oThere are many, many more new features and other improvements. For a
1 a7 @! v2 n. W& }7 G1 omore complete list, visit:
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http://gcc.gnu.org/gcc-3.0/features.html! m1 {& @* @/ y9 _
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Caveats
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For specific caveats about GCC 3.0, including information about
% j* X( d5 T6 n; {* J6 F; Rsome user-visible changes to GCC 3.0, please visit:
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2 M" N/ |0 T0 S% _ http://gcc.gnu.org/gcc-3.0/caveats.html
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8 }4 I p/ s" P6 u* ~Because this release contains so many new features and new
$ [* J0 B9 O' I' [4 ~5 R% R) `optimizations, it also contains some new bugs. Although a tremendous
- h: |( e( Y& B8 b! vamount of effort has been invested in eliminating bugs, there are
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undoubtedly problems remaining. The web page mentioned above will
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be updated as we obtain additional information about frequently
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encountered problems.
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8 o7 f! H5 j% X1 G- pWhile we feel that GCC 3.0 is suitable for production use, you should
H9 f" M; }3 Eof course test recompiled applications carefully before deploying them
4 I& Z( G5 \( F+ K d& J& s' B3 Ain mission-critical environments. We do not recommend replacing the
9 x- f- Z5 |+ C& _+ rsystem compiler on your system with GCC 3.0, because that makes it
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difficult for you to downgrade, should the need arise.
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" Q! {5 U5 x d/ TWe know that GCC 3.0 does not work as well on some embedded systems as
! E9 B" e5 T; ]6 V* Z. E Qprevious releases of GCC. We hope to correct these problems in an
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upcoming GCC 3.0.1 release soon. If you are am embedded systems user
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and would like to help, please visit:
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: ~- a X/ d0 B9 c2 D! J4 ] http://gcc.gnu.org/contribute.html. A4 h) C! D' G! }8 A
& |9 }& K% S! B6 f( y. k0 PWe also know that current versions of GLIBC do not work when
# y r' n$ M% r0 ]) N0 _recompiled with GCC 3.0. The GLIBC developers are working on solving
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this problem.
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If you find problems in GCC 3.0, please follow the instructions at:
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http://gcc.gnu.org/bugs.html
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. ^0 t) _ {3 i$ N* O* Yto let us know where you ran into trouble. While we cannot promise to
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fix any given bug, your feedback will be valuable to us in
/ l2 ^% \$ R. ^% x, n" l( U' U9 gprioritizing our effort on future releases.
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% i4 ], p3 g, }! ~Acknowledgements
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----------------
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) V) W5 S% v+ ?Many, many people contributed to this release. You can find many of
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them listed at:
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' _6 `0 M. f2 L0 l; e: R% w http://gcc.gnu.org/thanks.html
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There are undoubtedly some omissions from that list; we apologize in
; F2 E- y0 U O% H4 {' yadvance to those who have been accidentally left out.
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As the Release Manager for GCC 3.0, I would particularly like to thank
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the Los Alamos National Laboratory (http://www.lanl.gov) for providing
( ~2 f* Y. b9 mfinancial support for a portion of the time that I have put into the
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I would also like to thank the GCC Steering Committee for its guidance
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and support throughout the release process. The Steering Committee's
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sage advice, and occasional criticism, have made it possible to
9 m2 }7 X9 R9 x+ m6 {prioritize, analyze, and deal with the issues that arose throughout
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the release cycle.
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' N' w5 g7 T. zShould you find imperfections in this release, please bear in mind
- v& A( r% X0 lthat a tradeoff has to be made between fixing every bug and making a
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release available. When you find places where GCC 3.0 is better than
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its predecessors, please thank the implementors of those improvements.
; G' K% _8 \5 w' W! v! ^( _5 i$ M RIf you find places where it is worse, blame me: the decision to ship,
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rather than to wait for futher fixing, lay with me.
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Looking Forward
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---------------
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There will be a 3.0.1 release to fix critical bugs discovered in GCC
$ B- v) g1 `' i8 K$ A9 F* o' ]3.0 in the relatively near future, although exact plans have not been
3 e. E) |( W: E% A) I0 r. Rfinalized.
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If you would like to participate in that process, please visit:
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http://gcc.gnu.org/lists.html
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# U, ^0 o( g5 m$ W$ X* O0 Jto find out how to join the appropriate mailing lists.
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* d9 a! F5 v% g gDownload
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--------
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The source release is available for download via FTP on the usual GNU
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0 W2 x& x% {" @1 d: X2 W http://www.gnu.org/order/ftp.html
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e% x: k) e, v' m% y+ ~7 ZYou will find the following files in `/pub/gnu/gcc/gcc-3.0':
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7 d; Y' G8 z+ E, S2 h" q* k gcc-3.0.tar.gz
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gcc-core-3.0.tar.gz
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gcc-g++-3.0.tar.gz
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gcc-g77-3.0.tar.gz
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gcc-java-3.0.tar.gz
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gcc-objc-3.0.tar.gz
7 ~3 G( R8 A) g# l! {! L gcc-testsuite-3.0.tar.gz
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) F+ J' p' d9 V% a. U; J+ ?If you download the first file, you do not need to download any of the
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others, as it contains the entire compiler.
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3 j& C6 s4 B2 h; D6 f" zIf you choose not to download the entire distribution, you must
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download the `core' package, which contains the C compiler, along with
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any of the other language-specific packages that you want. If you
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download the `java' package, you must also download the `g++' package,
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because the Java run-time library is partially written in C++.
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* ?$ T1 b' N# j, K0 eFor detailed installation instructions, please visit:
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/ h% {9 ]& H4 R7 k) O http://gcc.gnu.org/install/
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Because GCC is a large and complex piece of software, its installation
: u" r% N0 P, eis somewhat more complicated than many other programs. Binary
* {1 Y9 [& F1 W7 x4 o5 W Idistributions of the compiler, packaged for your system, may be
9 H% m6 Z0 B. iavailable from your system vendor or elsewhere on the internet, and
" F; X% P1 N$ l# o& K5 J" `6 {these distributions may provide you an easier way to install GCC 3.0.
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