Ubuntu
gcc-9 package

gcc-9 9.2.1-23ubuntu1 source package in Ubuntu

Changelog

gcc-9 (9.2.1-23ubuntu1) focal; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.

gcc-9 (9.2.1-23) unstable; urgency=medium

  * Update to SVN 20200110 (r280102) from the gcc-9-branch.
    - Fix PR libstdc++/93208, PR libstdc++/93201, PR target/93182 (AVR).

  [ Matthias Klose ]
  * Backport the LTO zstd compression code.

  [YunQiang Su]
  * Fix buffer overflow in the gcc-search-prefixed-as-ld patch when
    strlen(DEFAULT_REAL_TARGET_MACHINE) < multiarch_len. Closes: #915194.

 -- Matthias Klose <email address hidden>  Fri, 10 Jan 2020 13:34:37 +0100

Upload details

Uploaded by:
Matthias Klose
Uploaded to:
Focal
Original maintainer:
Ubuntu Developers
Architectures:
any all
Section:
devel
Urgency:
Medium Urgency

See full publishing history Publishing

Series Pocket Published Component Section

Downloads

File Size SHA-256 Checksum
gcc-9_9.2.1.orig.tar.gz 86.0 MiB 8819e4bbae43592726be676262f81f242bc5b7a50a019012d8ef02d135a1280c
gcc-9_9.2.1-23ubuntu1.debian.tar.xz 907.7 KiB fd676e9a867885d0a0aaf8e93fedcd220c2e43af0789a08655c1886214ba9667
gcc-9_9.2.1-23ubuntu1.dsc 29.1 KiB f287415ea98f02b9784b76c7ce064d9423e40a6edb1401b3b74e3e868fe2d703

View changes file

Binary packages built by this source

cpp-9: GNU C preprocessor

 A macro processor that is used automatically by the GNU C compiler
 to transform programs before actual compilation.
 .
 This package has been separated from gcc for the benefit of those who
 require the preprocessor but not the compiler.

cpp-9-dbgsym: debug symbols for cpp-9
cpp-9-doc: Documentation for the GNU C preprocessor (cpp)

 Documentation for the GNU C preprocessor in info format.

g++-9: GNU C++ compiler

 This is the GNU C++ compiler, a fairly portable optimizing compiler for C++.

g++-9-dbgsym: debug symbols for g++-9
g++-9-multilib: GNU C++ compiler (multilib support)

 This is the GNU C++ compiler, a fairly portable optimizing compiler for C++.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

gcc-9: GNU C compiler

 This is the GNU C compiler, a fairly portable optimizing compiler for C.

gcc-9-base: GCC, the GNU Compiler Collection (base package)

 This package contains files common to all languages and libraries
 contained in the GNU Compiler Collection (GCC).

gcc-9-dbgsym: debug symbols for gcc-9
gcc-9-doc: Documentation for the GNU compilers (gcc, gobjc, g++)

 Documentation for the GNU compilers in info format.

gcc-9-hppa64-linux-gnu: GNU C compiler (cross compiler for hppa64)

 This is the GNU C compiler, a fairly portable optimizing compiler for C.

gcc-9-hppa64-linux-gnu-dbgsym: debug symbols for gcc-9-hppa64-linux-gnu
gcc-9-locales: GCC, the GNU compiler collection (native language support files)

 Native language support for GCC. Lets GCC speak your language,
 if translations are available.
 .
 Please do NOT submit bug reports in other languages than "C".
 Always reset your language settings to use the "C" locales.

gcc-9-multilib: GNU C compiler (multilib support)

 This is the GNU C compiler, a fairly portable optimizing compiler for C.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

gcc-9-offload-nvptx: GCC offloading compiler to NVPTX

 The package provides offloading support for NVidia PTX. OpenMP and OpenACC
 programs linked with -fopenmp will by default add PTX code into the binaries,
 which can be offloaded to NVidia PTX capable devices if available.

gcc-9-offload-nvptx-dbgsym: debug symbols for gcc-9-offload-nvptx
gcc-9-plugin-dev: Files for GNU GCC plugin development.

 This package contains (header) files for GNU GCC plugin development. It
 is only used for the development of GCC plugins, but not needed to run
 plugins.

gcc-9-plugin-dev-dbgsym: debug symbols for gcc-9-plugin-dev
gcc-9-source: Source of the GNU Compiler Collection

 This package contains the sources and patches which are needed to
 build the GNU Compiler Collection (GCC).

gcc-9-test-results: Test results for the GCC test suite

 This package contains the test results for running the GCC test suite
 for a post build analysis.

gccbrig-9: GNU BRIG (HSA IL) frontend

 This is the GNU BRIG (HSA IL) frontend.
 The consumed format is a binary representation. The textual HSAIL
 can be compiled to it with a separate assembler.

gccbrig-9-dbgsym: debug symbols for gccbrig-9
gccgo-9: GNU Go compiler

 This is the GNU Go compiler, which compiles Go on platforms supported
 by the gcc compiler. It uses the gcc backend to generate optimized code.

gccgo-9-dbgsym: debug symbols for gccgo-9
gccgo-9-doc: Documentation for the GNU Go compiler (gccgo)

 Documentation for the GNU Go compiler in info format.

gccgo-9-multilib: GNU Go compiler (multilib support)

 This is the GNU Go compiler, which compiles Go on platforms supported
 by the gcc compiler.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

gdc-9: GNU D compiler (version 2)

 This is the GNU D compiler, which compiles D on platforms supported by gcc.
 It uses the gcc backend to generate optimised code.
 .
 This compiler supports D language version 2.

gdc-9-dbgsym: debug symbols for gdc-9
gdc-9-multilib: GNU D compiler (version 2, multilib support)

 This is the GNU D compiler, which compiles D on platforms supported by gcc.
 It uses the gcc backend to generate optimised code.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

gfortran-9: GNU Fortran compiler

 This is the GNU Fortran compiler, which compiles
 Fortran on platforms supported by the gcc compiler. It uses the
 gcc backend to generate optimized code.

gfortran-9-dbgsym: debug symbols for gfortran-9
gfortran-9-doc: Documentation for the GNU Fortran compiler (gfortran)

 Documentation for the GNU Fortran compiler in info format.

gfortran-9-multilib: GNU Fortran compiler (multilib support)

 This is the GNU Fortran compiler, which compiles Fortran on platforms
 supported by the gcc compiler.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

gm2-9: GNU Modula-2 compiler

 This is the GNU Modula-2 compiler, which compiles Modula-2 on platforms
 supported by gcc. It uses the gcc backend to generate optimised code.

gm2-9-dbgsym: debug symbols for gm2-9
gnat-9: GNU Ada compiler

 GNAT is a compiler for the Ada programming language. It produces optimized
 code on platforms supported by the GNU Compiler Collection (GCC).
 .
 This package provides the compiler, tools and runtime library that handles
 exceptions using the default zero-cost mechanism.

gnat-9-dbgsym: debug symbols for gnat-9
gnat-9-doc: GNU Ada compiler (documentation)

 GNAT is a compiler for the Ada programming language. It produces optimized
 code on platforms supported by the GNU Compiler Collection (GCC).
 .
 The libgnat library provides runtime components needed by most
 applications produced with GNAT.
 .
 This package contains the documentation in info format.

gobjc++-9: GNU Objective-C++ compiler

 This is the GNU Objective-C++ compiler, which compiles
 Objective-C++ on platforms supported by the gcc compiler. It uses the
 gcc backend to generate optimized code.

gobjc++-9-dbgsym: debug symbols for gobjc++-9
gobjc++-9-multilib: GNU Objective-C++ compiler (multilib support)

 This is the GNU Objective-C++ compiler, which compiles Objective-C++ on
 platforms supported by the gcc compiler.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

gobjc-9: GNU Objective-C compiler

 This is the GNU Objective-C compiler, which compiles
 Objective-C on platforms supported by the gcc compiler. It uses the
 gcc backend to generate optimized code.

gobjc-9-dbgsym: debug symbols for gobjc-9
gobjc-9-multilib: GNU Objective-C compiler (multilib support)

 This is the GNU Objective-C compiler, which compiles Objective-C on platforms
 supported by the gcc compiler.
 .
 This is a dependency package, depending on development packages
 for the non-default multilib architecture(s).

lib32asan5: AddressSanitizer -- a fast memory error detector (32bit)

 AddressSanitizer (ASan) is a fast memory error detector. It finds
 use-after-free and {heap,stack,global}-buffer overflow bugs in C/C++ programs.

lib32asan5-dbgsym: debug symbols for lib32asan5
lib32atomic1: support library providing __atomic built-in functions (32bit)

 library providing __atomic built-in functions. When an atomic call cannot
 be turned into lock-free instructions, GCC will make calls into this library.

lib32atomic1-dbgsym: debug symbols for lib32atomic1
lib32gcc-9-dev: GCC support library (32 bit development files)

 This package contains the headers and static library files necessary for
 building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.

lib32gcc1: GCC support library (dependency package, 32bit)

 This is a dependency package, and can be safely removed after upgrade.

lib32gcc1-dbgsym: No summary available for lib32gcc1-dbgsym in ubuntu focal.

No description available for lib32gcc1-dbgsym in ubuntu focal.

lib32gfortran-9-dev: Runtime library for GNU Fortran applications (32bit development files)

 This package contains the headers and static library files needed to build
 GNU Fortran applications.

lib32gfortran5: Runtime library for GNU Fortran applications (32bit)

 Library needed for GNU Fortran applications linked against the
 shared library.

lib32gfortran5-dbgsym: debug symbols for lib32gfortran5
lib32go-9-dev: Runtime library for GNU Go applications (32bit development files)

 This package contains the headers and static library files needed to build
 GNU Go applications.

lib32go14: Runtime library for GNU Go applications (32bit)

 Library needed for GNU Go applications linked against the
 shared library.

lib32gomp1: GCC OpenMP (GOMP) support library (32bit)

 GOMP is an implementation of OpenMP for the C, C++, and Fortran compilers
 in the GNU Compiler Collection.

lib32gomp1-dbgsym: debug symbols for lib32gomp1
lib32gphobos-9-dev: Phobos D standard library (32bit development files)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

lib32gphobos76: Phobos D standard library (runtime library)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

lib32gphobos76-dbgsym: debug symbols for lib32gphobos76
lib32itm1: GNU Transactional Memory Library (32bit)

 GNU Transactional Memory Library (libitm) provides transaction support for
 accesses to the memory of a process, enabling easy-to-use synchronization of
 accesses to shared memory by several threads.

lib32itm1-dbgsym: debug symbols for lib32itm1
lib32lsan0: LeakSanitizer -- a memory leak detector (32bit)

 LeakSanitizer (Lsan) is a memory leak detector which is integrated
 into AddressSanitizer (empty package).

lib32objc-9-dev: Runtime library for GNU Objective-C applications (32bit development files)

 This package contains the headers and static library files needed to build
 GNU ObjC applications.

lib32objc4: Runtime library for GNU Objective-C applications (32bit)

 Library needed for GNU ObjC applications linked against the shared library.

lib32objc4-dbgsym: debug symbols for lib32objc4
lib32quadmath0: GCC Quad-Precision Math Library (32bit)

 A library, which provides quad-precision mathematical functions on targets
 supporting the __float128 datatype. The library is used to provide on such
 targets the REAL(16) type in the GNU Fortran compiler.

lib32quadmath0-dbgsym: debug symbols for lib32quadmath0
lib32stdc++-9-dev: GNU Standard C++ Library v3 (development files)

 This package contains the headers and static library files necessary for
 building C++ programs which use libstdc++.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

lib32stdc++6: GNU Standard C++ Library v3 (32 bit Version)

 This package contains an additional runtime library for C++ programs
 built with the GNU compiler.

lib32stdc++6-9-dbg: GNU Standard C++ Library v3 (debug build)

 This package contains a debug build of the shared libstdc++ library. The debug
 symbols for the default build can be found in the libstdc++6-dbgsym package.

lib32stdc++6-dbgsym: debug symbols for lib32stdc++6
lib32ubsan1: UBSan -- undefined behaviour sanitizer (32bit)

 UndefinedBehaviorSanitizer can be enabled via -fsanitize=undefined.
 Various computations will be instrumented to detect undefined behavior
 at runtime. Available for C and C++.

lib32ubsan1-dbgsym: No summary available for lib32ubsan1-dbgsym in ubuntu focal.

No description available for lib32ubsan1-dbgsym in ubuntu focal.

lib64asan5: AddressSanitizer -- a fast memory error detector (64bit)

 AddressSanitizer (ASan) is a fast memory error detector. It finds
 use-after-free and {heap,stack,global}-buffer overflow bugs in C/C++ programs.

lib64asan5-dbgsym: debug symbols for lib64asan5
lib64atomic1: support library providing __atomic built-in functions (64bit)

 library providing __atomic built-in functions. When an atomic call cannot
 be turned into lock-free instructions, GCC will make calls into this library.

lib64atomic1-dbgsym: debug symbols for lib64atomic1
lib64gcc-9-dev: GCC support library (64bit development files)

 This package contains the headers and static library files necessary for
 building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.

lib64gcc1: GCC support library (dependency package) (64bit)

 This is a dependency package, and can be safely removed after upgrade.

lib64gcc1-dbgsym: No summary available for lib64gcc1-dbgsym in ubuntu focal.

No description available for lib64gcc1-dbgsym in ubuntu focal.

lib64gfortran-9-dev: Runtime library for GNU Fortran applications (64bit development files)

 This package contains the headers and static library files needed to build
 GNU Fortran applications.

lib64gfortran5: Runtime library for GNU Fortran applications (64bit)

 Library needed for GNU Fortran applications linked against the
 shared library.

lib64gfortran5-dbgsym: debug symbols for lib64gfortran5
lib64go-9-dev: Runtime library for GNU Go applications (64bit development files)

 This package contains the headers and static library files needed to build
 GNU Go applications.

lib64go14: Runtime library for GNU Go applications (64bit)

 Library needed for GNU Go applications linked against the
 shared library.

lib64gomp1: GCC OpenMP (GOMP) support library (64bit)

 GOMP is an implementation of OpenMP for the C, C++, and Fortran compilers
 in the GNU Compiler Collection.

lib64gomp1-dbgsym: debug symbols for lib64gomp1
lib64gphobos-9-dev: Phobos D standard library (64bit development files)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

lib64gphobos76: Phobos D standard library (runtime library)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

lib64gphobos76-dbgsym: debug symbols for lib64gphobos76
lib64itm1: GNU Transactional Memory Library (64bit)

 GNU Transactional Memory Library (libitm) provides transaction support for
 accesses to the memory of a process, enabling easy-to-use synchronization of
 accesses to shared memory by several threads.

lib64itm1-dbgsym: debug symbols for lib64itm1
lib64objc-9-dev: Runtime library for GNU Objective-C applications (64bit development files)

 This package contains the headers and static library files needed to build
 GNU ObjC applications.

lib64objc4: Runtime library for GNU Objective-C applications (64bit)

 Library needed for GNU ObjC applications linked against the shared library.

lib64objc4-dbgsym: debug symbols for lib64objc4
lib64quadmath0: GCC Quad-Precision Math Library (64bit)

 A library, which provides quad-precision mathematical functions on targets
 supporting the __float128 datatype. The library is used to provide on such
 targets the REAL(16) type in the GNU Fortran compiler.

lib64quadmath0-dbgsym: debug symbols for lib64quadmath0
lib64stdc++-9-dev: GNU Standard C++ Library v3 (development files)

 This package contains the headers and static library files necessary for
 building C++ programs which use libstdc++.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

lib64stdc++6: GNU Standard C++ Library v3 (64bit)

 This package contains an additional runtime library for C++ programs
 built with the GNU compiler.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

lib64stdc++6-9-dbg: GNU Standard C++ Library v3 (debug build)

 This package contains a debug build of the shared libstdc++ library. The debug
 symbols for the default build can be found in the libstdc++6-dbgsym package.

lib64stdc++6-dbgsym: debug symbols for lib64stdc++6
lib64ubsan1: UBSan -- undefined behaviour sanitizer (64bit)

 UndefinedBehaviorSanitizer can be enabled via -fsanitize=undefined.
 Various computations will be instrumented to detect undefined behavior
 at runtime. Available for C and C++.

lib64ubsan1-dbgsym: No summary available for lib64ubsan1-dbgsym in ubuntu focal.

No description available for lib64ubsan1-dbgsym in ubuntu focal.

libasan5: AddressSanitizer -- a fast memory error detector

 AddressSanitizer (ASan) is a fast memory error detector. It finds
 use-after-free and {heap,stack,global}-buffer overflow bugs in C/C++ programs.

libasan5-dbgsym: debug symbols for libasan5
libatomic1: support library providing __atomic built-in functions

 library providing __atomic built-in functions. When an atomic call cannot
 be turned into lock-free instructions, GCC will make calls into this library.

libatomic1-dbgsym: debug symbols for libatomic1
libcc1-0: GCC cc1 plugin for GDB

 libcc1 is a plugin for GDB.

libcc1-0-dbgsym: debug symbols for libcc1-0
libgcc-9-dev: GCC support library (development files)

 This package contains the headers and static library files necessary for
 building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.

libgcc1: GCC support library (dependency package)

 This is a dependency package, and can be safely removed after upgrade.

libgcc1-dbgsym: No summary available for libgcc1-dbgsym in ubuntu focal.

No description available for libgcc1-dbgsym in ubuntu focal.

libgccjit-9-dev: GCC just-in-time compilation (development files)

 libgccjit provides an embeddable shared library with an API for adding
 compilation to existing programs using GCC.

libgccjit-9-doc: GCC just-in-time compilation (documentation)

 libgccjit provides an embeddable shared library with an API for adding
 compilation to existing programs using GCC.

libgccjit0: GCC just-in-time compilation (shared library)

 libgccjit provides an embeddable shared library with an API for adding
 compilation to existing programs using GCC.

libgccjit0-dbgsym: debug symbols for libgccjit0
libgfortran-9-dev: Runtime library for GNU Fortran applications (development files)

 This package contains the headers and static library files needed to build
 GNU Fortran applications.

libgfortran5: Runtime library for GNU Fortran applications

 Library needed for GNU Fortran applications linked against the
 shared library.

libgfortran5-dbgsym: debug symbols for libgfortran5
libgm2-0: GNU Modula-2 standard library (runtime library)

 This is the GNU Modula-2 standard library that comes with the gm2 compiler.

libgm2-0-dbgsym: debug symbols for libgm2-0
libgm2-9-dev: GNU Modula-2 standard library

 This is the Modula-2 standard library that comes with the gm2 compiler.

libgnat-9: runtime for applications compiled with GNAT (shared library)

 GNAT is a compiler for the Ada programming language. It produces optimized
 code on platforms supported by the GNU Compiler Collection (GCC).
 .
 The libgnat library provides runtime components needed by most
 applications produced with GNAT.
 .
 This package contains the runtime shared library.

libgnat-9-dbgsym: debug symbols for libgnat-9
libgnatvsn9: GNU Ada compiler selected components (shared library)

 GNAT is a compiler for the Ada programming language. It produces optimized
 code on platforms supported by the GNU Compiler Collection (GCC).
 .
 The libgnatvsn library exports selected GNAT components for use in other
 packages, most notably ASIS tools. It is licensed under the GNAT-Modified
 GPL, allowing to link proprietary programs with it.
 .
 This package contains the runtime shared library.

libgnatvsn9-dbgsym: debug symbols for libgnatvsn9
libgnatvsn9-dev: GNU Ada compiler selected components (development files)

 GNAT is a compiler for the Ada programming language. It produces optimized
 code on platforms supported by the GNU Compiler Collection (GCC).
 .
 The libgnatvsn library exports selected GNAT components for use in other
 packages, most notably ASIS tools. It is licensed under the GNAT-Modified
 GPL, allowing to link proprietary programs with it.
 .
 This package contains the development files and static library.

libgo-9-dev: Runtime library for GNU Go applications (development files)

 This package contains the headers and static library files needed to build
 GNU Go applications.

libgo14: Runtime library for GNU Go applications

 Library needed for GNU Go applications linked against the
 shared library.

libgomp-plugin-hsa1: GCC OpenMP v4.5 plugin for offloading to HSA

 This package contains libgomp plugin for offloading to HSA.

libgomp-plugin-hsa1-dbgsym: debug symbols for libgomp-plugin-hsa1
libgomp-plugin-nvptx1: GCC OpenMP v4.5 plugin for offloading to NVPTX

 This package contains libgomp plugin for offloading to NVidia
 PTX. The plugin needs libcuda.so.1 shared library that has to be
 installed separately.

libgomp-plugin-nvptx1-dbgsym: debug symbols for libgomp-plugin-nvptx1
libgomp1: GCC OpenMP (GOMP) support library

 GOMP is an implementation of OpenMP for the C, C++, and Fortran compilers
 in the GNU Compiler Collection.

libgomp1-dbgsym: debug symbols for libgomp1
libgphobos-9-dev: Phobos D standard library

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

libgphobos76: Phobos D standard library (runtime library)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

libgphobos76-dbgsym: debug symbols for libgphobos76
libhsail-rt-9-dev: HSAIL runtime library (development files)

 This library implements the agent-side runtime functionality required
 to run HSA finalized programs produced by the BRIG frontend.
 .
 The library contains both the code required to run kernels on the agent
 and also functions implementing more complex HSAIL instructions.

libhsail-rt0: HSAIL runtime library

 This library implements the agent-side runtime functionality required
 to run HSA finalized programs produced by the BRIG frontend.
 .
 The library contains both the code required to run kernels on the agent
 and also functions implementing more complex HSAIL instructions.

libhsail-rt0-dbgsym: debug symbols for libhsail-rt0
libitm1: GNU Transactional Memory Library

 GNU Transactional Memory Library (libitm) provides transaction support for
 accesses to the memory of a process, enabling easy-to-use synchronization of
 accesses to shared memory by several threads.

libitm1-dbgsym: debug symbols for libitm1
liblsan0: LeakSanitizer -- a memory leak detector (runtime)

 LeakSanitizer (Lsan) is a memory leak detector which is integrated
 into AddressSanitizer.

liblsan0-dbgsym: No summary available for liblsan0-dbgsym in ubuntu focal.

No description available for liblsan0-dbgsym in ubuntu focal.

libobjc-9-dev: Runtime library for GNU Objective-C applications (development files)

 This package contains the headers and static library files needed to build
 GNU ObjC applications.

libobjc4: Runtime library for GNU Objective-C applications

 Library needed for GNU ObjC applications linked against the shared library.

libobjc4-dbgsym: debug symbols for libobjc4
libquadmath0: GCC Quad-Precision Math Library

 A library, which provides quad-precision mathematical functions on targets
 supporting the __float128 datatype. The library is used to provide on such
 targets the REAL(16) type in the GNU Fortran compiler.

libquadmath0-dbgsym: debug symbols for libquadmath0
libstdc++-9-dev: GNU Standard C++ Library v3 (development files)

 This package contains the headers and static library files necessary for
 building C++ programs which use libstdc++.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

libstdc++-9-doc: GNU Standard C++ Library v3 (documentation files)

 This package contains documentation files for the GNU stdc++ library.
 .
 One set is the distribution documentation, the other set is the
 source documentation including a namespace list, class hierarchy,
 alphabetical list, compound list, file list, namespace members,
 compound members and file members.

libstdc++-9-pic: GNU Standard C++ Library v3 (shared library subset kit)

 This is used to develop subsets of the libstdc++ shared libraries for
 use on custom installation floppies and in embedded systems.
 .
 Unless you are making one of those, you will not need this package.

libstdc++6: GNU Standard C++ Library v3

 This package contains an additional runtime library for C++ programs
 built with the GNU compiler.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

libstdc++6-9-dbg: GNU Standard C++ Library v3 (debug build)

 This package contains a debug build of the shared libstdc++ library. The debug
 symbols for the default build can be found in the libstdc++6-dbgsym package.

libstdc++6-dbgsym: debug symbols for libstdc++6
libtsan0: ThreadSanitizer -- a Valgrind-based detector of data races (runtime)

 ThreadSanitizer (Tsan) is a data race detector for C/C++ programs.
 The Linux and Mac versions are based on Valgrind.

libtsan0-dbgsym: No summary available for libtsan0-dbgsym in ubuntu focal.

No description available for libtsan0-dbgsym in ubuntu focal.

libubsan1: UBSan -- undefined behaviour sanitizer (runtime)

 UndefinedBehaviorSanitizer can be enabled via -fsanitize=undefined.
 Various computations will be instrumented to detect undefined behavior
 at runtime. Available for C and C++.

libubsan1-dbgsym: No summary available for libubsan1-dbgsym in ubuntu focal.

No description available for libubsan1-dbgsym in ubuntu focal.

libx32asan5: AddressSanitizer -- a fast memory error detector (x32)

 AddressSanitizer (ASan) is a fast memory error detector. It finds
 use-after-free and {heap,stack,global}-buffer overflow bugs in C/C++ programs.

libx32asan5-dbgsym: debug symbols for libx32asan5
libx32atomic1: support library providing __atomic built-in functions (x32)

 library providing __atomic built-in functions. When an atomic call cannot
 be turned into lock-free instructions, GCC will make calls into this library.

libx32atomic1-dbgsym: debug symbols for libx32atomic1
libx32gcc-9-dev: GCC support library (x32 development files)

 This package contains the headers and static library files necessary for
 building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.

libx32gcc1: GCC support library (x32)

 This is a dependency package, and can be safely removed after upgrade.

libx32gcc1-dbgsym: No summary available for libx32gcc1-dbgsym in ubuntu focal.

No description available for libx32gcc1-dbgsym in ubuntu focal.

libx32gfortran-9-dev: Runtime library for GNU Fortran applications (x32 development files)

 This package contains the headers and static library files needed to build
 GNU Fortran applications.

libx32gfortran5: Runtime library for GNU Fortran applications (x32)

 Library needed for GNU Fortran applications linked against the
 shared library.

libx32gfortran5-dbgsym: debug symbols for libx32gfortran5
libx32go-9-dev: Runtime library for GNU Go applications (x32 development files)

 This package contains the headers and static library files needed to build
 GNU Go applications.

libx32go14: Runtime library for GNU Go applications (x32)

 Library needed for GNU Go applications linked against the
 shared library.

libx32gomp1: GCC OpenMP (GOMP) support library (x32)

 GOMP is an implementation of OpenMP for the C, C++, and Fortran compilers
 in the GNU Compiler Collection.

libx32gomp1-dbgsym: debug symbols for libx32gomp1
libx32gphobos-9-dev: Phobos D standard library (x32 development files)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

libx32gphobos76: Phobos D standard library (runtime library)

 This is the Phobos standard library that comes with the D2 compiler.
 .
 For more information check http://www.dlang.org/phobos/

libx32gphobos76-dbgsym: debug symbols for libx32gphobos76
libx32itm1: GNU Transactional Memory Library (x32)

 This manual documents the usage and internals of libitm. It provides
 transaction support for accesses to the memory of a process, enabling
 easy-to-use synchronization of accesses to shared memory by several threads.

libx32itm1-dbgsym: debug symbols for libx32itm1
libx32lsan0: LeakSanitizer -- a memory leak detector (x32)

 LeakSanitizer (Lsan) is a memory leak detector which is integrated
 into AddressSanitizer (empty package).

libx32objc-9-dev: Runtime library for GNU Objective-C applications (x32 development files)

 This package contains the headers and static library files needed to build
 GNU ObjC applications.

libx32objc4: Runtime library for GNU Objective-C applications (x32)

 Library needed for GNU ObjC applications linked against the shared library.

libx32objc4-dbgsym: debug symbols for libx32objc4
libx32quadmath0: GCC Quad-Precision Math Library (x32)

 A library, which provides quad-precision mathematical functions on targets
 supporting the __float128 datatype. The library is used to provide on such
 targets the REAL(16) type in the GNU Fortran compiler.

libx32quadmath0-dbgsym: debug symbols for libx32quadmath0
libx32stdc++-9-dev: GNU Standard C++ Library v3 (development files)

 This package contains the headers and static library files necessary for
 building C++ programs which use libstdc++.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

libx32stdc++6: GNU Standard C++ Library v3 (x32)

 This package contains an additional runtime library for C++ programs
 built with the GNU compiler.
 .
 libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which
 was included up to g++-2.95. The first version of libstdc++-v3 appeared
 in g++-3.0.

libx32stdc++6-9-dbg: GNU Standard C++ Library v3 (debug build)

 This package contains a debug build of the shared libstdc++ library. The debug
 symbols for the default build can be found in the libstdc++6-dbgsym package.

libx32stdc++6-dbgsym: debug symbols for libx32stdc++6
libx32ubsan1: UBSan -- undefined behaviour sanitizer (x32)

 UndefinedBehaviorSanitizer can be enabled via -fsanitize=undefined.
 Various computations will be instrumented to detect undefined behavior
 at runtime. Available for C and C++.

libx32ubsan1-dbgsym: No summary available for libx32ubsan1-dbgsym in ubuntu focal.

No description available for libx32ubsan1-dbgsym in ubuntu focal.