Open System Services Shell and Utilities Reference Manual (G06.27+, H06.04+)

User Commands (c) c89(1)

You cannot use this ﬂag if you use the following ﬂags:

-Wcall_shared or -Wshared

-Wnld_obey="file"

Directs the nld utility to read additional command-line arguments from the command

ﬁle speciﬁed in the ﬁle argument. The arguments are processed as if they had been

passed directly to nld in place of ﬁle. c89 does not verify the existence or readability

of ﬁle.

This ﬂag is valid only for TNS/R-targeted compilations. This

ﬂag does not invoke nld.

If the nld utility is not invoked, this ﬂag is ignored. Use this ﬂag to pass arguments to

nld when creating a TNS/R native non-PIC program or user library.

You cannot use this ﬂag if you use any of the following ﬂags:

-Wcall_shared or -Wshared

-Wnoexceptions

Disables support for exceptions and exception handling. This ﬂag can improve appli-

cation performance by removing unneeded processing steps when an application does

not use exceptions or perform exception handling.

This ﬂag affects only C++ programs compiled with the version 2 dialect of C++; it is

ignored for C programs and C++ programs compiled using the version 1 or version 3

dialect.

-Wnomain

Speciﬁes that the object ﬁle should be linked without a main() function. This ﬂag

prevents the compiler from specifying to the linker those modules and libraries that

provide customary run-time support for C or C++ programs. The resulting ﬁle has no

_MAIN function and no standard run-time libraries unless those are speciﬁed

separately in a ﬁle identiﬁed by the:

• -Weld_obey=ﬁle ﬂag or in an obey ﬁle used by the eld utility

• -Wld_obey=ﬁle ﬂag or in an obey ﬁle used by the ld utility

• -Wnld_obey=ﬁle ﬂag or in an obey ﬁle used by the nld utility

-Wnostdinc

Suppresses the searching of the standard include directories to locate included ﬁles.

Refer to the Standard Include Directories subsection for details.

-Wnostdlib

Suppresses the searching of the standard library directories to locate libraries. Refer to

the Standard Library Directories subsection for details.

-WOlimit=value

Speciﬁes the maximum decimal number of basic blocks of a routine that the global

optimizer will optimize. When a routine has more basic blocks than this number, it is

not optimized and a warning message is printed.

When the -WOlimit ﬂag is speciﬁed, either the -O or -Woptimize=2 ﬂags must also be

speciﬁed.

When the -WOlimit ﬂag is not speciﬁed, an optimized routine can contain at most

2500 basic blocks. When a routine has more basic blocks than this number, it is not

optimized but a warning message is not printed.

The -WOlimit ﬂag is only valid for TNS/R-targeted compilations.

527188-004 Hewlett-Packard Company 2−13