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bug#13083: libtool.m4 forgets LD_LIBRARY_PATH when computing sys_lib_dls
bug#13083: libtool.m4 forgets LD_LIBRARY_PATH when computing sys_lib_dlsearch_path_spec
Tue, 04 Dec 2012 13:51:35 -0500
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According to the manpage for ld.so on Linux, libraries are searched for
in three places:
- /etc/ld.so.cache (built from ld.so.conf)
- /lib and /usr/lib
libtool features a variable named sys_lib_dlsearch_path_spec which is
meant to list the library search path with the purpose of excluding
these paths from being hardcoded into libraries as -rpath.
The Linux case for determining the value of sys_lib_dlsearch_path_spec
in libtool.m4 handles both the /etc/ld.so.cache case (by sourcing
/etc/ld.so.conf) and hardcodes /lib and /usr/lib. It fails to take
LD_LIBRARY_PATH into account, however, resulting in unnecessary -rpath
usage for the directories in this variable.
It would probably be relatively easy to split up LD_LIBRARY_PATH across
the ':' it contains and add the paths to sys_lib_dlsearch_path_spec.
I'd do the patch myself but I am (blissfully) unaware of which set of
tools (cut? sed?) are considered portable enough to be used from
Thanks for your consideration.
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Ryan Lortie <=