HP aC++/HP C A.06.25 Programmer's Guide

Object Files (.o Files)
Files with .o extensions are assumed to be relocatable object files that have to be
included in the linking. The compiler invokes the linker to link the object files and
create an executable file.
Use the -c option to compile a C++ source file into a .o file.
Library Files (.a and .so Files)
Files ending with .a are assumed to be archive libraries. Files ending with .so are
assumed to be shared libraries.
Use the -c and +z options to create object files of Position-Independent Code (PIC)
and the -b option to create a shared library.
Use the -c option to create object files and the ar command to combine the object files
into an archive library.
Configuration Files (.conf Files)
You can configure compiler options on a system-wide basis. The compiler reads the
configuration files:
/var/aCC/share/aCC.conf (aC++), or
/var/ansic/share/cc.conf(ANSI C), if present.
In C-mode, the configuration file defaults to/var/ansic/share/cc.conf, unless
overridden by the environment variable CC_CONFIG..
In C++ mode, the config file defaults to /var/aCC/share/aCC.conf, unless overriden
by the environment variable CXX_CONFIG.
The options in the configuration file can be specified in the same manner as that for
CCOPTS and CXXOPTS, namely:
[options-list-1] [|[options-list-2]]
where options in options-list-1 are applied before the options in the command
line, and options in options-list-2 are applied after the options in the command
line.
The final option ordering would be:
<file-options-1><envvar-options-1><command-line-options>
<envvar-options-2><file-options-2>
NOTE: No configuration files are shipped along with aC++, but can be installed by
the system administrator, if required.
The config file options before the "|" character set the defaults for compilations, and
the options after the character override the user’s command line settings.
34 Getting Started with HP aC++