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Diffstat (limited to 'development/gcc5/README')
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diff --git a/development/gcc5/README b/development/gcc5/README new file mode 100644 index 0000000000..bdc9fd7e52 --- /dev/null +++ b/development/gcc5/README @@ -0,0 +1,48 @@ +This gcc5 package can be installed alongside Slackware's gcc-11 +packages. These version 11 compilers can sometimes be quite a bit +more strict about what they accept as valid code. As a consequence, +you will regularly run into compilation issues with software. Not just +the software made with the scripts on slackbuilds.org, but also some +of the software in the Slackware core distribution requires patches in +order to get them to compile. + +Still having the gcc version 5 compilers can sometimes be a lifesaver. +Particulars of the gcc5 package: +- The gcc5 binaries were given a suffix '-5' to make them stand apart + from Slackware's default compilers. +- The gcc5 package only contains the C, C++ and Java compilers. +- One all-encompassing package is built by the SlackBuild script. +- Profile scripts are added to /etc/profile.d/. You can 'source' + the profile script to prefer the gcc-5 compilers over gcc-7. +- On 64bit Slackware, the gcc5.SlackBuild will detect an existing gcc + multilib compiler and will then build a multilib capable gcc5. + If you run pure 64bit Slackware, then a pure 64bit gcc5 package is + built. + +How to use these gcc5 compilers instead of Slackware's default ones? +Simple: +In your console or terminal, you 'source' the provided profile script, +like this (a c-shell compatible script is available as well): + + source /etc/profile.d/gcc5.sh + +The command 'source' is equivalent to the dot command ' . '. +The profile script will (re-)define the common variables that are +used by make and other programs to determine which binary to run as +the compiler: + +export CC=gcc-5 +export CPP=cpp-5 +export CXX=g++-5 +export AR=gcc-ar-5 +export NM=gcc-nm-5 +export RANLIB=gcc-ranlib-5 + +Nothing else needs to be done after sourcing the profile script. +All you do next is run your compile job as usual in that same console. +Your program will be compiled with the binaries provided by the gcc5 +package. + +** WARNING: The temporary build location used by the script +** (defaulting here to /tmp/SBo) should *NOT* be a directory path a +** non-root user could create later... |