Using grep inside makefile for loop

[givemecode]

I saw this question was posted but never answered on this forum. Hopefully
this can be done:

I have code in a makefile that creates a new file called "allheaders.h"
which includes ALL the headers, and is intended to verify they compile:

allheaders.h $(HEADER)
    @for f in $(HEADER) ; do echo "#include \""$$f"\"" >> $@ ; done

where HEADER is just a bunch of header files inside the include directory:

HEADER = include/a.h
HEADER += include/b.h
HEADER += include/c.h
...

How do I do something similar to grep in the for loop, so as not to include
the "include/" part of the header rule?

For instance, I currently have this inside my allheaders.h file:

#include "include/a.h"
#include "include/b.h"
#include "include/c/h"
....


but I want just:

#include "a.h"
#include "b.h"
...


they are essential the same but I would like it to be the second list.
thanks!!
-- 
View this message in context: 
http://old.nabble.com/Using-grep-inside-makefile-for-loop-tp30676223p30676223.html
Sent from the Gnu - Make - Help mailing list archive at Nabble.com.