Roland Ver. 4.5 Technické informace stáhnout pdf (Strana 178)

168 GNU make

$(error text...)

When this function is evaluated, make generates a fatal error with the message

text.

See Section 8.12 [Functions That Control Make], page 96.

$(warning text...)

When this function is evaluated, make generates a warning with the message

text.

See Section 8.12 [Functions That Control Make], page 96.

$(shell command)

Execute a shell command and return its output.

See Section 8.13 [The shell Function], page 97.

$(origin variable)

Return a string describing how the make variable variable was deﬁned.

See Section 8.10 [The origin Function], page 94.

$(flavor variable)

Return a string describing the ﬂavor of the make variable variable.

See Section 8.11 [The flavor Function], page 95.

$(foreach var,words,text)

Evaluate text with var bound to each word in words, and concatenate the

results.

See Section 8.5 [The foreach Function], page 90.

$(if condition,then-part[,else-part])

Evaluate the condition condition; if it’s non-empty substitute the expansion of

the then-part otherwise substitute the expansion of the else-part.

See Section 8.4 [Functions for Conditionals], page 89.

$(or condition1[,condition2[,condition3...]])

Evaluate each condition conditionN one at a time; substitute the ﬁrst non-

empty expansion. If all expansions are empty, substitute the empty string.

See Section 8.4 [Functions for Conditionals], page 89.

$(and condition1[,condition2[,condition3...]])

Evaluate each condition conditionN one at a time; if any expansion results in

the empty string substitute the empty string. If all expansions result in a non-

empty string, substitute the expansion of the last condition.

See Section 8.4 [Functions for Conditionals], page 89.

$(call var,param,...)

Evaluate the variable var replacing any references to $(1), $(2) with the ﬁrst,

second, etc. param values.

See Section 8.7 [The call Function], page 92.

$(eval text)

Evaluate text then read the results as makeﬁle commands. Expands to the

empty string.

See Section 8.9 [The eval Function], page 93.

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