shell function and environment

Posted by Michael on Stack Overflow See other posts from Stack Overflow or by Michael
Published on 2010-05-15T04:33:58Z Indexed on 2010/05/15 4:44 UTC
Read the original article Hit count: 311

Filed under:

makefile

|

environment-variables

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export

How in Makefile export variable first then make another variable's expansion?

somevar := apple
export somevar
update = $(shell perl -e 'print "$$ENV{somevar}"')
all:
    @echo $(update)

For some reason the expansion takes place first, then export. As a result the output is empty.

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