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@@ -20,6 +20,8 @@ A Midipix distribution consists of the following: * **Debian/-derived Linux**: binutils bzip2 clzip cmake coreutils curl findutils g++ gawk gcc git grep gzip hostname libc6-dev libxml-parser-perl lzma make patch perl procps sed tar util-linux wget xz-utils zip * **OpenSUSE Linux**: binutils bzip2 cmake coreutils curl findutils gawk gcc gcc-c++ git grep gzip hostname linux-glibc-devel lzip make patch perl perl-XML-Parser procps sed tar util-linux wget xz zip +> N.B. Busybox is not supported. + > N.B. Some packages (*coreutils*, *grep*, and *tar*, among others) override Alpine's BusyBox utilities of the same name, as the latter are either non- conformant or defective. @@ -32,6 +34,46 @@ following command line within the latter: ./build.sh -a nt64 -b release -D minipix,zipdist -P -v ``` +## Non-exhaustive list of build variables +The following variables are primarily defined in ``midipix.env`` and may be overriden +on a per-build basis on the command-line after the last argument, if any, e.g.: + +```shell +./build.sh -a nt64 -b release -D minipix,zipdist -P -v PREFIX_ROOT="${HOME}/midipix_tmp" +``` + +Furthermore, ``${HOME}/midipix_build.vars``, ``${HOME}/.midipix_build.vars``, and/or +``../midipix_build.vars`` are sourced during build initialisation and may contain +additional overrides, particularly ``${DEFAULT_GITROOT_HEAD}``. + +| Variable name | Default value | Description | +| ---------------- | ------------------------------- | ----------------------------------------------------------------------------- | +| ARCH | nt64 | Target 32-bit (nt32) or 64-bit (nt64) architecture | +| BUILD | debug | Build w/ debugging (debug) or release compiler flags | +| BUILD_DLCACHEDIR | ${PREFIX_ROOT}/dlcache | Absolute pathname to package downloads cache root directory | +| BUILD_WORKDIR | ${PREFIX}/tmp | Absolute pathname to temporary package build root directory | +| PREFIX | ${PREFIX_ROOT}/${ARCH}/${BUILD} | Absolute pathname to architecture- & build type-specific build root directory | +| PREFIX_CROSS | ${PREFIX}/${DEFAULT_TARGET} | Absolute pathname to toolchain root directory | +| PREFIX_MINGW32 | ${PREFIX}/x86_64-w64-mingw32 | Absolute pathname to MinGW toolchain root directory | +| PREFIX_MINIPIX | ${PREFIX}/minipix | Absolute pathname to minipix distribution root directory | +| PREFIX_NATIVE | ${PREFIX}/native | Absolute pathname to cross-compiled packages root directory | +| PREFIX_ROOT | ${HOME}/midipix | Absolute pathname to top-level directory | +| PREFIX_RPM | ${PREFIX}/rpm | Absolute pathname to package RPM archive root directory | + +## Common tasks +Rebuild set of packages in isolation, along w/ their dependencies, if any, as needed, +or forcibly, respectively: +```shell +./build.sh [ ... ] -r mc,zsh +./build.sh [ ... ] -r \*mc,zsh +./build.sh [ ... ] -r \*\*mc,zsh +``` + +Rebuild entire build group: +```shell +./build.sh [ ... ] -r ALL native_runtime +``` + ## References * ``Sun, 25 Apr 2016 09:04:08 +0000 [1]`` <a href="http://www.musl-libc.org/faq.html" id="r1">musl FAQ</a> |