"if" statement in "$PESC_DIR\bmake\common\rules" makefile

[Matthew Knepley]

-o means logical or and -d means does the directory exist. I believe all
this is covered in the bash manpage.

  Matt

On 7/31/07, Sumit Vaidya <sumit_vaidya at persistent.co.in> wrote:
>
>
>
>
> Hi,
>
>
>
> I would like to understand the rules makefile. What are these various
> options '-d', '-o', '-f' used in "if" statement.
>
> For example in "tree" target, the first command is
>
> "@if [ "$(DIRS)" != "" -o -d "ftn-auto" -o -d "ftn-custom" -o -d
> "f90-custom" ];"
>
>
>
> I would like to understand the meaning of this. What is the significance of
> –o –d option in "if" statement.
>
> Can you point me to some link where I will get the information about this?
>
>
>
> Waiting for your reply,
>
> Sumit
>
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