Technical data

4. Packages
Under the Buildroot directory ˜/.fbr/fbr-<branch>-<arch>/buildroot the following di-
rectories are of interest:
Directory Content
output/sandbox In this directory a subdirectory exists for each FBR package
that holds the files of the package after being compiled. In
the directory output/sandbox/<package>/target the files
for the fli4l router can be found in this case. In the direc-
tory output/sandbox/<package>/staging files needed for
building other FBR packages requiring this FBR package
can be found.
output/target In this directory all compiled programs for the fli4l-router
are stored. This directory mirrors the directory structure on
the fli4l router. By the help of chroot you can change to
this directory and try the programs.
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General Settings
The operation of fbr-make can be influenced by various environment variables:
Variable Description
FBR Specifies the path to the FBR explicitely. Per default the
path ˜/.fbr/fbr-<branch>-<arch> (see above) is used.
FBR_BASEDIR explicitely specifies the base path to the FBR. As a default
the ˜/.fbr (see above) will be used. This variable will be
ignored if the environment variable FBR is set.
FBR_DLDIR Specifies the directory containing the source archives. Per
default the path ${FBR}/../dl (i.e. ˜/.fbr/dl) will be
used.
FBR_OWNDIR Specifies the directory holding the own packages. Per default
the path ${FBR}/../own (i.e. ˜/.fbr/own) will be used.
FBR_TIDY if this variable is set to “y” intermediate results while com-
piling the FBR packages will be deletetd immediately af-
ter their installation to the directory output/target. This
saves a lot of space and is always recommended if you do
not feel the urge to have a look at output/build/... af-
ter the build process. If this variable ’contains the value “
k’, only the intermediate results in the various Linux ker-
nel directories are removed, because this saves a lot of space
without losing any functionality. All other assignments (or if
the variable is missing entirely) ensure that all intermediate
results are kept.
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This is bound to some preconditions, see the paragraph “Testing Of A Compiled Program” (Page 244).
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