HP aC++/HP C Programmer's Guide (B3901-90036; A.06.26; September 2011)

NOTE: Do not use floating installation with the following:
• CCROOTDIR environment variable
• -tc,name command line option
Setting up Floating Installation
You may want to install the most recent compiler version and keep the prior version on
one system. If there are problems with the most recent version, you can easily switch to
the prior one. Following is an example of how to set up the floating installation feature
for this purpose. Assume that your system will have two versions of the compiler, both
floating install enabled. In this case, A.05.50 is the prior version, and A.05.60 or
A.06.00 is the more recent version.
To setup floating installation, complete the following steps:
1. Copy the prior version to another directory.
cp -rp /opt/aCC /opt/aCC.05.55
2. Use swinstall to install the new version (A.06.00 or A.05.60 in this case).
Floating Installation 33