Currently on Unix there are "lib*.5.0.0.dylib" (Apple) or "lib*.so.5.0.0"
(Linux) shared libraries
created where "*" stands for "hostemu", "orxncurses", "rexx", "rexxapi",
"rexxutil", "rxmath",
"rxregexp", "rxsock", "rxunixsys".
In addition there are symbolic links created in the form of "lib*.dylib" or
"lib*.so" pointing to
the "5.0.0" shared libraries. An example with "hostemu" shared libraries would
be:
Apple: libhostemu.dylib -> libhostemu.5.0.0.dylib
Linux: libhostemu.so -> libhostemu.so.5.0.0
If running executables that got linked to earlier versions of ooRexx (e.g.
ooRexx 2, ooRexx 3 or
ooRexx 4) then such executables would not be able to run, unless there are also
symbolic links
created that carry the version information "2", "3" or "4", like:
Apple: libhostemu2.dylib -> libhostemu.so
libhostemu3.dylib -> libhostemu.so
libhostemu4.dylib -> libhostemu.so
Linux: libhostemu2.so -> libhostemu.so
libhostemu3.so -> libhostemu.so
libhostemu4.so -> libhostemu.so
<https://sourceforge.net/p/oorexx/bugs/1421/> points at this situation.
---
Now, as everyone is quite busy with different tasks I tried to start to figure
out how to change the
CMakeList file such that it would create these symbolic links and install them.
Not having knowledge
about CMake this has turned out to be a very time consuming task, where
information is missing that
would allow me to conclude the experiment.
After many hours, I have become able to create the symbolic links in the
${CMAKE_LIBRARY_OUTPUT_DIRECTORY}, but have not been able to get these newly
added files to copy to
the lib-directory at install time ("make install" or while creating the rpm or
deb packages where
the shared libraries need to get copied to the packager's temporary
subdirectories).
So any help or advice would be appreciated that would allow me to proceed, such
that in the end I
could supply a patch for the project that creates these symbolic links!
---
Here a few questions:
* why are the shared libraries created in the BINARY_DIR as in line # as
o set (CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
o on Apple there is an individual change to that value, such that a "lib"
directory gets used
to place the shared libraries to
* how would one cause all shared files in ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}
to be copied at
installation time ("make install") to the installation's target library
directory?
o Tried it to no avail with (at build time INSTALL_LIB_DIR points to the
standard installation
location like "/usr/lib"):
install(CODE "execute_process(COMMAND ${CMAKE_COMMAND} -E chdir
${INSTALL_LIB_DIR}
create_symlink ${targetName} ${linkName})")
hence looking for alternatives.
o is there a means to inform CMake which library files need to be taken
from the
CMAKE_LIBRARY_OUTPUT_DIRECTORY and be put into the appropriate library
directory while
installing (and uninstalling)?
---rony
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