Re: command line limitation

[Maxim Yegorushkin]

ma wrote:

>     I have a make file that is automatically generated. It that makefile, I 
> have a variable that is very long. It is around 88K long. When I am trying 
> to pass it to any function (ar for example), the operating system complains 
> that the command line is too long. The other way is to put this variable in 
> a text file and call ar in this way:
>
> ar @a.txt
>
> The problem is I don't know how I can write this variable into a file? I 
> can't use something such as echo $(Long_Var) >a.txt since then the command 
> line to echo is too long. Is there any way that I can do in gmake? Is there 
> any function in gmake that help to write a variable into a file?

You could output the variable word by word to a file:

words = a b c d
foo :
        @for w in $(words); do echo -n "$$w " >> $@; done

And then feed the words from the file to ar as command line arguments 
using xarg utility.