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Top Forums Shell Programming and Scripting how to programmatically generate makefile variable Post 302536005 by benkial on Sunday 3rd of July 2011 10:33:01 PM
Old 07-03-2011
how to programmatically generate makefile variable

I make to parse the release version from a text file and set the release version label into a Makefile variable. I tried:
Code:
VERSION := `grep vsn s1db.app|sed -e s/[^\"]*\"// -e s/\"[^\"]*//`

but looks like make, unlike shell, literally just take the entire `grep ...` as the variable value.

Then I tried to put the shell command in:

release: forced
Code:
    export VERSION=`grep vsn s1db.app|sed -e s/[^\"]*\"// -e s/\"[^\"]*//`
    echo $(VERSION)

but it seems that the "export" command does not set the $VERSION value.

How can I programmatically parse and set a makefile variable?

Thanks in advance,

Benk

Last edited by Franklin52; 07-04-2011 at 03:21 AM.. Reason: Please use code tags for code and data samples, thank you
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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