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Operating Systems AIX Embedding Runtime Search Path into Library on AIX Post 302921209 by erra_krishna on Wednesday 15th of October 2014 03:30:14 PM
Old 10-15-2014
Embedding Runtime Search Path into Library on AIX

My product has 2 libraries say "x & y".
x depends on y.

During the installation of my products package, user will be prompted for his own location to copy my product libraries.
Installation will copy libraries "x & y" and create my product specific ENV variable say "MYPATH" pointing to User picked install location.


Here User doesn't want to set LIBPATH nor he want to create any softlinks in "/usr/lib or /lib".


Now I should make my library "x" find its dependent "y" in the environment where there is no LIBPATH set nor softlinks created in "/usr/lib or /lib".

On other UNIX platforms, there is a concept of $ORIGIN and i am successful using this on other Unix platforms.

Since there is no concept of $ORIGIN on AIX, trying out alternatives on AIX




My Scenario:
************

My package install creates ENV variable “MYPATH” pointing to the User picked installed location.
Let say, User selected /home/lib and install will set "MYPATH=/home/lib"

Now I thought of accessing this variable in the runtime search path (Either specifying using -L or –blibpath) while building my libraries (x & y).

For a particular library, runtime search path(dump -X32 -H) should be like
INDEX PATH
0 $MYPATH


I’ve tried specifying $MYPATH in the makefile using “-L or –blibpath” but as MYPATH is not available during build time, NULL value got replaced.

INDEX PATH
0


I want $MYPATH to be considered as is so that at runtime it gets replaced with its value.

Tried Escaping $ and also used quotes but no use.
ex: $$\(MYPATH\)


Can this be possible? If possible, then how?


-Srikrishna Erra.

Last edited by erra_krishna; 10-15-2014 at 04:35 PM..
 

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CHICKEN-UNINSTALL(1)					      General Commands Manual					      CHICKEN-UNINSTALL(1)

NAME
chicken-uninstall - uninstall extension library SYNOPSIS
chicken-uninstall [OPTION | PATTERN] ... DESCRIPTION
chicken-uninstall removes one or more already installed extension libraries for the CHICKEN Scheme system. PATTERN may be a regular expression naming multiple extensions or just an extension name. OPTIONS
Enter chicken-uninstall -help for a list of supported command-line options. ENVIRONMENT VARIABLES
CHICKEN_PREFIX The installation prefix where CHICKEN Scheme and its support files and libraries are located. Defaults to the installation time pre- fix given when configuring the system. CHICKEN_INSTALL_PREFIX An alternative installation prefix that will be prepended to extension installation paths if specified. CHICKEN_REPOSITORY The path where extension libraries are installed. Defaults to the package-library path selected during configuration (usually /var/lib/chicken/<binary-version> ) DOCUMENTATION
More information can be found in the CHICKEN User's Manual BUGS
Submit bug reports by e-mail to chicken-janitors@nongnu.org , preferrably using the chicken-bug tool. AUTHORS
The CHICKEN Team SEE ALSO
chicken-install(1) chicken-status(1) chicken(1) chicken-bug(1) 13 Aug 2008 CHICKEN-UNINSTALL(1)
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