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

NOTE: For C++ and C -Ae -D_HPUX_SOURCE is set to be compatible with the

default when -mt is not used. For C mode options -AC89, -AC99, and -Aa,

-D_HPUX_SOURCE is also set. If you do not want to use-D_HPUX_SOURCE, you can

undefine it by using -U. Example: -U_HPUX_SOURCE

The following macros are used to compile multi-thread source code:

• _REENTRANT

Required by system header files that provide reentrant functions (suffixed by _r).

• RW_MULTI_THREAD / _RW_MULTI_THREAD

Required by Rogue Wave toolsh++ header files and libraries. RW_MULTI_THREAD

is used by toolsh++ 7.0.x. _RW_MULTI_THREAD is used by toolsh++ 8.x (not available

yet).

• RWSTD_MULTI_THREAD / _RWSTD_MULTI_THREAD

Required by Rogue Wave standard library header files and libraries.

RWSTD_MULTI_THREAD is used by libstd 1.2.1. _RWSTD_MULTI_THREAD is used

by libstd 2.2.1 when compiling with -AA.

• _POSIX_C_SOURCE=199506L

Required by pthread.

• libpthread.*

Kernel thread library used on 11.x systems

See “Using Threads” (page 213) for more information.

NOTE: Make sure that -mt is used consistently at compile and link times. When you

link with -mt, everything must be compiled with -mt, even if you do not think your

file will be used in a threaded application. When you incorrectly mix and match with

-mt, you get a runtime abort with the following message:

aCC runtime: Use of "-mt" must be consistent during both compilation and linking.

To find the library or object that is missing -mt, use /usr/ccs/bin/footprints

and look for the following:

-mt [(off) 1] -mt [on 1] (Or not present)

The number 1 above is the count of objects with that -mt setting. Not present implies

the source was not compiled with a recent compiler that contains this information.

+O[no]autopar

90 Command-Line Options