The system linkers provided with AIX, HP-UX, and Tru64 UNIX do not accept multiple runtime linker command-line arguments (-blibpath, +b, and -rpath respectively). If multiple instances are specified, only one is used. This differs from how the Solaris and IRIX linkers work. This tool, wrapld, is a wrapper script around the AIX, HP-UX, and Tru64 ld command that accepts multiple runtime linker arguments and combines them into one runtime linker argument, separating the paths with colons.

Source: ftp://ftp.thewrittenword.com/pub/wrapld