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Diffstat (limited to 'README.ldshim')
| -rw-r--r-- | README.ldshim | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/README.ldshim b/README.ldshim new file mode 100644 index 0000000..9779623 --- /dev/null +++ b/README.ldshim @@ -0,0 +1,18 @@ +Normally, one would add libraries and python modules to a bundle using LD_LIBRARY_PATH +and PYTHONPATH. This gives them priority over the systemwide versions of these items. +However, this is a dangerous approach, as if the included versions are incompatible with +the system, the program will not run. ldshim.py creates a safer alternative, by adding +the bundled binaries to the _end_ of the search path, rather than the beginning, so that +systemwide binaries take precedence. + +To produce a bundle from RPMs, one must download them into the bundle path +and then execute + +cat [name].rpm | rpm2cpio | cpio -di + +for each RPM. This will produce a new root directory tree based on the +current path. One may also need to add other binaries to the tree manually +in directories like usr/bin/. + +If adding python modules, it is important to ensure that every directory +recursively containing the python module is world-readable and executable. |