Re: Running case commands with the shell function?

[John Calcote]

$ cat Makefile

TARGET := i386-x-openbsd5.5y
iflags := \
    case "$(TARGET)" in \
      i386-*-openbsd5.[5-9]*|i386-*-openbsd[6-9].*)\
        echo "-ccopt -nopie";; \
      *);; \
    esac

flags := $(shell $(iflags))

all:
echo $(flags)

$ make
echo -ccopt -nopie
-ccopt -nopie

If you can't get make to parse a macro properly due to embedded special
chars, I've found that often embedding the bad stuff in an internal macro
and then calling the internal macro from the outer macro works wonders.

Regards,
John


On Thu, Sep 14, 2017 at 5:52 AM, Sébastien Hinderer <
address@hidden> wrote:

> Dear all,
>
> I'd like to be able to write something like this:
>
> flags := \
>   $(shell \
>     case "$(TARGET)" in \
>       i386-*-openbsd5.[5-9]*|i386-*-openbsd[6-9].*) \
>         echo "-ccopt -nopie";; \
>       *);; \
>     esac \
>   )
>
> Of course this does not work because the first closing parenthesis is
> interpreted as ending the call to the shell function.
>
> Is there a way to actually achieve this, please?
>
> Thanks!
>
> Sébastien.
>
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