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28.10.2019 · Change your make target to this (adding semicolons):. check: if [ -z "$(APP_NAME)" ]; then \ echo "Empty"; \ else \ echo "Not empty"; \ fi For evaluating a statement in a shell without newlines (newlines get eaten by the backslash \) you need to properly end it with a semicolon.You cannot use real newlines in a Makefile for conditional shell-script code (see Make-specific …

How we can write a if ..else for integer value. There is a keyword ifeq or ifneq but thast is for string. Is there any specific keyword for integer value?

The second ifneq will be true when MAKECMDGOALS contains nonconfig targets, too. Once the variables are set, they are used in an if - else chain with four ...

before the effective contents of a Makefile are parsed, the file is examined ... conditional-directive effective if condition is true ... else effective if ...

The ifeq directive begins the conditional, and specifies the condition. It contains two arguments, separated by a comma and surrounded by parentheses. Variable ...

Oct 29, 2019 · Show activity on this post. Change your make target to this (adding semicolons): check: if [ -z "$ (APP_NAME)" ]; then \ echo "Empty"; \ else \ echo "Not empty"; \ fi. For evaluating a statement in a shell without newlines (newlines get eaten by the backslash \) you need to properly end it with a semicolon.

27.02.2009 · Subject: [shellscript-l] if..else in Makefile. How we can write a if ..else for integer value. There is a keyword ifeq or ifneq but thast is for string. Is there any specific keyword for integer value? or How should we check this type of conditional in Makefile. Regards, Milap.

Feb 27, 2009 · Subject: [shellscript-l] if..else in Makefile. How we can write a if ..else for integer value. There is a keyword ifeq or ifneq but thast is for string. Is there any specific keyword for integer value? or How should we check this type of conditional in Makefile. Regards, Milap.

You can simply use shell commands. If you want to suppress echoing the output, use the "@" sign. For example: clean: @if [ "test" = "test" ]; then\ echo "Hello world";\ fi. Note that the closing ; and \ at each line are necessary.

Mar 18, 2010 · Yes, at least one syntax was broken in make (GNU Make 3.81). The conditional ifeq (et al) seems to work OK: Code: TEST=NoProbbs all : Makefile ifeq ($ (TEST),NoProbbs) STATUS=OK else STATUS=NOTOK endif. There are more details here:

20.04.2021 · So is it really just a funky syntax for a case statement, or is each 'else ifeq' independent. I know I can do this: ifeq ($(option), 1) CC=gcc else ifeq ($(myhostname), "johnsLaptop") CC=johnsCompiler else CC=mipsel-linux-gcc endif endif But thats ugly. I would rather not have nested if/else without indentation if I don't have to.

It is optional to have an else in a conditional. The endif directive ends the conditional. Every conditional must end with an endif. Unconditional makefile text follows. As this example illustrates, conditionals work at the textual level: the lines of the conditional are treated as part of the makefile, or ignored, according to the condition.

Conditionals affect which lines of the makefile make uses. If the condition is true, make reads the lines of the text-if-true as part of the makefile; if the condition is false, make ignores those lines completely. It follows that syntactic units of the makefile, such as rules, may safely be split across the beginning or the end of the conditional.

How to create if statement in a makefile? (I really ought to have that hotkeyed.) You're mixing Make syntax and shell syntax in a way that ...

The simplest form (where "ifxxx" stands for any of the conditional statements documented below) is: ifxxx ... lines seen if the statement evaluates as true ...

I'm trying to setup a Makefile that will search and copy some files (if-else condition) and I can't figure out what exactly is wrong with it ...

conditional-directive text-if-true endif. The text-if-true may be any lines of text, to be considered as part of the makefile if the condition is true. If the condition is false, no text is used instead. The syntax of a complex conditional is as follows: conditional-directive text-if-true else text-if-false endif.

Conditionals · ifeq · These statements work analogously to the ifeq and ifneq statements, except that they test whether any of the variables is defined or not any ...

There can be as many “else conditional-directive” clauses as necessary.Once a given condition is true, text-if-true is used and no other clause is used; if no condition is true then text-if-false is used. The text-if-true and text-if-false can be any number of lines of text. The syntax of the conditional-directive is the same whether the conditional is simple or complex; after an else or …

The text-if-true may be any lines of text, to be considered as part of the makefile if the condition is true. If the condition is false, no text is used instead ...