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to test, checkout the source (let's assume /scratch/src/busybox), then mkdir /tmp/bb ; cd /tmp/bb make top_srcdir=/scratch/src/busybox O="$(pwd)" -f /scratch/src/busybox/Makefile allyesconfig check - default to O=$(pwd) if no O was specified. Now you can just specify the top_srcdir (without O=/somewhere) to create the obj-tree in pwd. - make "make configtarget buildtarget" work. Previously this didn't work due to how HAVE_DOT_CONFIG was evaluated. Two separate steps were needed before, e.g. make config ; make busybox. - remove some unneeded variables from Rules.mak (BB_SRC_DIR from Mr. ldoolitt@recycle.lbl) which suggest that the stuff fixed above didn't work before. - move selinux libraries to where they belong (from Makefile to Rules.mak) - update the docs to mention svn instead of cvs and provide an example for building out-of-tree in INSTALL.
51 lines
1.6 KiB
Plaintext
51 lines
1.6 KiB
Plaintext
Building:
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=========
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You will usually build in the source-tree.
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Alternatively you can build out-of-tree to have the object files separated
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from the source. This allows for building several different configurations
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from the same set of sources.
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A) Building in the source-tree:
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-------------------------------
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1) Run 'make config' or 'make menuconfig' and select the
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functionality that you wish to enable.
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2) Run 'make'
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3) Run 'make install' or 'make PREFIX=/target install' to
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install busybox and all the needed links. Some people
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will prefer to install using hardlinks and will instead
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want to run 'make install-hardlinks'....
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B) Building out-of-tree:
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------------------------
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1) make the directory to hold the object files and chdir to it:
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'mkdir /tmp/bb ; cd /tmp/bb'
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Then prepare the config giving the full path to the source in top_srcdir:
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make top_srcdir=/path/busybox -f /path/busybox/Makefile O=/tmp/b allyesconfig
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Note that O=$(pwd) is the default if no O= was specified.
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You now have a buildable tree in $O and can run 'make' without the need
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to specify any paths.
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Proceed with step #A2 above.
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Installation:
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=============
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After the build is complete, a busybox.links file is generated. This is
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used by 'make install' to create symlinks to the BusyBox binary for all
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compiled in functions. By default, 'make install' will place the symlink
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forest into `pwd`/_install unless you have defined the PREFIX environment
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variable (i.e., 'make PREFIX=/tmp/foo install')
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If you wish to install hard links, rather than symlinks, you can use
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'make PREFIX=/tmp/foo install-hardlinks' instead.
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