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43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
This is an alternate build system.
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For details see
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https://www.crufty.net/sjg/docs/freebsd-meta-mode.htm.
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Build commands can be seen from the top-level with:
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.Dl make show-valid-targets
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The build is driven by dirdeps.mk using
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.Va DIRDEPS
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stored in
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Makefile.depend files found in each directory.
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.Pp
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The build can be started from anywhere, and behaves the same.
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The initial instance of
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.Xr make 1
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recursively reads
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.Va DIRDEPS
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from
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.Pa Makefile.depend ,
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computing a graph of tree dependencies from the current origin.
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Setting
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.Va NO_DIRDEPS
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skips checking dirdep dependencies and will only build in the current
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and child directories.
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.Va NO_DIRDEPS_BELOW
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skips building any dirdeps and only build the current directory.
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.Pp
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This also utilizes the
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.Va WITH_META_MODE
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logic for incremental builds.
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.Pp
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The build hides commands executed unless
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.Va NO_SILENT
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is defined.
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.Pp
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Note that there is currently no mass install feature for this.
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This build is designed for producing packages, that can then be installed
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on a target system.
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.Pp
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The implementation in
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.Fx
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is incomplete.
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Completion would require leaf directories for building each kernel
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and package so that their dependencies can be tracked.
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