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

c89(1) OSS Shell and Utilities Reference Manual

-D name[="value" ]

Deﬁnes the preprocessor symbol name as value. It is equivalent to a #deﬁne directive

in the source. If no value is given, name is deﬁned as 1. The -D ﬂag has lower pre-

cedence than the -U ﬂag. Thus, if name is speciﬁed in both a -U and a -D ﬂag, name is

undeﬁned regardless of the order of the ﬂags.

Use this ﬂag to deﬁne compiler feature-test macros.

When the NonStop SQL/MX preprocessor is invoked, all -D speciﬁcations are

automatically passed to the preprocessor as the preprocessor’s -d options.

-E Preprocesses the speciﬁed source ﬁles. No compilation or linking is performed. Out-

put is sent to the standard output ﬁle and contains #line directives.

If the -Wsql ﬂag is speciﬁed, embedded NonStop SQL/MP statements are processed.

If the -Wsqlmx ﬂag is speciﬁed, embedded NonStop SQL/MX statements are pro-

cessed.

The -WH and -WM ﬂags override the -E ﬂag.

-g Produces in the object or executable ﬁles information (symbol tables) used for sym-

bolic debugging.

-I directory

Adds directory to the list of directories searched to locate #include ﬁles with relative

pathnames. (Relative pathnames do not begin with a slash, ’/’). #include ﬁlenames

enclosed in double quotes are searched for ﬁrst in the directory of the ﬁle with the

#include directive, then in directories named with -I ﬂags, and last in the standard

include directories. #include ﬁlenames enclosed in angle brackets (<>) are searched

for ﬁrst in directories named with -I ﬂags and then in the standard include directories.

Refer to the Standard Include Directories subsection for details.

-L directory

Adds directory to the list of directories searched to locate libraries speciﬁed by

operands of the form -l library. See the Operands subsection for details.

-o outfile Uses the pathname outﬁle instead of the default pathname a.out for the name of the

output object ﬁle.

If only one source ﬁle is speciﬁed and the -c ﬂag is speciﬁed, the generated output is

placed into outﬁle. Only one -o ﬂag can be speciﬁed. The ﬁle speciﬁed cannot be an

SQL preprocessing output ﬁle.

If a single source ﬁle is compiled and linked in one invocation of c89, and if the outﬁle

is the same name as that of the input object ﬁle, c89 issues a warning message and

places the output in a temporary ﬁle.

-O Sets the compiler to optimization level 2. This ﬂag is equivalent to a -Woptimize=2

ﬂag.

-s Strips symbolic information not required for proper execution from object and execut-

able ﬁles. The resulting object ﬁle cannot be debugged using a symbolic debugger.

This ﬂag is ignored if the -Wr ﬂag is also speciﬁed.

-U name Removes any initial deﬁnition of the preprocessor symbol name. The -U ﬂag has

higher precedence than the -D ﬂag. If name is speciﬁed in both a -U and a -D ﬂag,

name is undeﬁned regardless of the order of the ﬂags.

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