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

Question

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.

Answer 1

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