MPE/iX Shell and Utilities Reference Manual, Vol 1

make(1) MPE/iX Shell and Utilities make(1)

.SYMBOL

Target is an entry point into a module in a library (cannot be set by the user). This

attribute is used only when searching a library for a target. Targets of the form

lib((entry)) have this attribute set automatically.

You can specify any attribute except .LIBRARYM and .SYMBOL. You can use any attribute

with any target, including special targets.

Special Targets

Special Targets are called targets because they appear in the target position of rules; however,

they are really keywords, not targets. The rules in which they appear are really directives

which control the behavior of make.

The special target must be the only target in a special rule — you cannot list other normal or

special targets.

Some special targets are affected by some attributes. Any special target can be given any

attribute, but often the combination is meaningless and the attribute has no effect.

.BRACEEXPAND

This target may have no prerequisites and no recipes associated with it. If set, the

target enables the outdated brace expansion feature used in older versions of make.

Older makes would expand a construct of the following form, beginning with each

token in the token list:

string1{token_list}string2

Older makes would append string1 to the front of each token in the list, and

string2 to the end of each token in the list. A more productive means for achiev-

ing the same result with modern versions of make relies on macro expansion with

preﬁx and sufﬁx modiﬁers:

$(TOKEN_BASE:ˆ"prefix":+"suffix")

Note that the double quotes are required. Brace expansion is an outdated feature

available in past versions of make and future versions will dispense with it com-

pletely.

.DEFAULT

This target has no prerequisites, but it does have a recipe. If make can apply no

other rule to produce a target, it uses this rule if it has been deﬁned.

.ERROR

make executes the recipe associated with this target whenever it detects an error

condition.

Commands and Utilities 1-347