ls installed
Mac OS X which for ls
ls installed
Mac OS X which for doesnt-exist
m4: generating 'tmp/test' from 'tmp/test.m4'
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Simple test file for generate() using m4.
    m4
m4: generating 'tmp/test-multiple' from 'tmp/test-multiple.m4'
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Test with multiple arguments passed to generate().
first: first
second: second

m4: generating 'tmp/test-multiple-spaces' from 'tmp/test-multiple-spaces.m4'
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Test with multiple arguments with spaces passed to generate().
first: first with spaces
second: second with spaces

awk: generating 'tmp/test-awk' from 'tmp/test-awk.in'
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Simple
first

cat: generating 'tmp/test-cat' from 'tmp/test-cat.real'
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Simple test fiel for generate() using cat (simple copy).

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