Implicit rule with multiple targets "forgets" to build a target

[Michael Bos]

Hello,

 

When running “make –f Makefile.bad” (attached) I get the following output:

 

Generate 'E.1'

Creating 'A1B/C' from 'E.1' with stem '1'

Generate 'E.2'

Creating 'A2B/C' from 'E.2' with stem '

 

As you can see the targets A1B/D and A2B/D are not generated (I do not have any files with such names in my directory).

 

When splitting the multi-target rule into two implicit rules the missing targets are generated (“make –f Makefile.ok”, attached):

 

Generate 'E.1'

Creating 'A1B/C' from 'E.1' with stem '1'

Creating 'A1B/D' from 'E.1' with stem '1'

Generate 'E.2'

Creating 'A2B/C' from 'E.2' with stem '2'

Creating 'A2B/D' from 'E.2' with stem '2'

 

According to the documentation there should be no difference:

“4.10 Multiple Targets in a Rule: A rule with multiple targets is equivalent to writing many rules, each with one target, and all identical aside from that.”

 

What’s wrong with my argumentation?

 

I am using GNU Make 3.81 under RedHat5.

 

Thanks in advance.

Greetings

Michael

 

___________________________________________________________________

 

Michael Bos

Principal Physical Verification Engineer (CAD)

 

Direct Dial: +49 (0)7021 805-255 | Fax: +49 (0)7021 805-100

address@hidden |  www.diasemi.com

 

Dialog Semiconductor GmbH, Neue Strasse 95, D-73230 Kirchheim/Teck-Nabern, Germany

___________________________________________________________________

 

 

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Makefile.bad
Description: Makefile.bad

Makefile.ok
Description: Makefile.ok