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makefile - Make error for ifeq: syntax error near unexpected token

I'm writing a Makefile that does string matching at one place, the code is like:

if test ...; 
    then 
    shell scripts... 
fi

ifeq ($(DIST_TYPE),nightly)
    shell scripts ...
endif

Here the first if is shell script, the second ifeq is GNU Make's conditional. However the following error generates:

ifeq (nightly,nightly)

/bin/sh: -c: line 0: syntax error near unexpected token `nightly,nightly'

/bin/sh: -c: line 0: `ifeq (nightly,nightly)'

What's happening here? It seems that Make is trying to call the shell.

Thank you.

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1 Answer

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by (71.8m points)

I played around the code and found that the conditional statements should be written without indentation, and this solved my problem.

If there is no indentation, Make will treat it as a directive for itself; otherwise, it's regarded as a shell script.

Example code

Wrong:

target:
    ifeq (foo, bar)
        ...
    endif

Correct:

target:
ifeq (foo, bar)
    ...
endif

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