C/C++ Programmer's Guide (G06.25+)

Compiler Pragmas
HP C/C++ Programmer’s Guide for NonStop Systems—429301-008
13-79
RUNNABLE
RUNNABLE
The RUNNABLE pragma directs the compiler to generate an executable object file
instead of a linkable object file for a single-module program.
The pragma default settings are:
Usage Guidelines
•
The RUNNABLE pragma can be specified only on the compiler RUN command line
for the native C and C++ compilers.
•
If you specify RUNNABLE in a translation unit that does not define the function
main, the compiler generates a warning and produces a linkable, not executable,
object file.
•
The RUNNABLE pragma has no effect if the compiler is run from the OSS
environment. The compiler ignores the pragma.
•
When you specify the RUNNABLE pragma, the native C and C++ compilers do the
following:
°
Invoke the appropriate linker for conventional or PIC (Position-Independent
Code)
°
Specify the $SYSTEM.SYSTEM.LIBCOBEY command file to a TNS/R linker
•
The LIBCOBEY file directs the linker to link to a set of standard shared run-
time libraries (SRLs). For most C and C++ TNS/R programs, this set of
libraries is sufficient to create an executable program.
•
If your program requires libraries not specified in LIBCOBEY (such as the
Tools.h++ library) you can direct the linker to search additional libraries
using the LINKFILE pragma. For details, refer to LINKFILE on
page 13-57.
•
For information on linking TNS/R C and C++ programs, see Linking a Module on
page 16-12.
•
For information on linking TNS/E C and C++ programs, see Linking a Module on
page 17-12.
RUNNABLE
SYSTYPE GUARDIAN SYSTYPE OSS
TNS C compiler Not set Not set
G-series TNS c89 utility N.A. N.A.
TNS/R native C and C++ compilers Not set Not set
Native c89 utility N.A. N.A.
TNS/E native C and C++ compilers Not set Not set