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Diffstat (limited to 'README')
| -rw-r--r-- | README | 77 |
1 files changed, 0 insertions, 77 deletions
@@ -1,77 +0,0 @@ -What is gcc-config? -------------------- - -gcc-config allows Gentoo users to switch active gcc safely -and allows querying facts about installed toolchains. - -To switch active gcc while system runs: - $ gcc-config x86_64-pc-linux-gnu-8.1.0 - $ gcc-config x86_64-pc-linux-gnu-7.2.0 - - Ideally changes should be visible instantly and atomically - without shell restart. - -To query where real gcc binaries are hiding: - $ gcc-config -B $(gcc-config -c) - -To parse a profile into TARGET and toolchain version: - $ gcc-config -S sparc64-unknown-linux-gnu-9.2.0 - -Files, variables, things. -------------------------- - -- Wrappers (symlinks to compiler binary like /usr/${CTARGET}/gcc-bin/${GCC_VERSION}/gcc) - /usr/bin/gcc (native) - /usr/bin/g++ (native) - /usr/bin/${CTARGET}-gcc (native and cross) - ... - (all files from /usr/${CTARGET}/gcc-bin/$GCC_VERSION/*) - - See `gcc-config` script for wrapping details. - - /usr/bin/c89 (native) - /usr/bin/c99 (native) - -- private gcc configs (provided by `toolchain.eclass`, gcc ebuilds) - - /etc/env.d/gcc/x86_64-pc-linux-gnu-8.1.0 - - Contains variables that describe toolchain layout: - - LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/8.1.0" - MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/8.1.0/man" - INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/8.1.0/info" - STDCXX_INCDIR="g++-v8" - CTARGET="x86_64-pc-linux-gnu" - GCC_SPECS="" - MULTIOSDIRS="../lib64" - GCC_PATH="/usr/x86_64-pc-linux-gnu/gcc-bin/8.1.0" - - Used by gcc-config to generate wrappers and 05gcc- env.d files. - -- gcc env.d compiler entries (provided by gcc-config) - - /etc/env.d/04gcc-${CTARGET} (native) - - Populates paths for native-compilers - - GCC_SPECS="" - MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/8.2.0/man" - INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/8.2.0/info" - - Used by env-update to populate PATH and more (TODO: remove PATH population). - -TODOs ------ - -- Write proper `gcc-config` manpage off this readme to be more discoverable. - -- Figure out symlink ownership story. Today symlinks don't belong to any package. - - See https://bugs.gentoo.org/626606 - -Releasing ---------- - - $ release=2.3.1; git tag -a -s -m "release ${release}" v${release}; make dist PV=${release} - $ git push --tags origin |