I have a make question, and I was hoping somebody here might be able to point me in the right direction.
Here is my issue; I have a command-line tool that I use to run a conversion on an input XML file that results in an output binary file. However, this particular tool needs to load up an overarching project file when it starts, and the time involved in that initial parsing is significant. Therefore, if I have 100 XML files that need processing, I waste a lot of time starting the tool over and over.
I like to use make for this kind of processing, because the dependency handling is so good. However, in this instance I would like to send all of the XML files that need processing to the tool in a single batch. Typically my make rules look like this:
Code:
%.bin : %.xml
tool -export %.xml
... but this of course will run "tool" once for each XML file encountered in a previous dependency. I had considered this:
Code:
$(ALL_BIN) : $(ALL_XML)
tool -export $(ALL_XML)
... which will batch up the job, but it will rebuild every binary file if just a single XML file changes. Does anybody know a way that I keep make's dependency checking on a per-file basis, but run the actual command only once? Thanks much for any advice!
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Please use code tags when posting data and code samples!
Last edited by vgersh99; 11-19-2010 at 11:51 AM..
Reason: code tags, please!
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Discussion started by: busyboy
6 Replies
LEARN ABOUT DEBIAN
xml2-config
GNOME-XML(1) 1.1.0 GNOME-XML(1)NAME
xml-config - script to get information about the installed version of GNOME-XML
SYNOPSIS
xml-config [--prefix[=DIR]] [--libs] [--cflags] [--version] [--help]
DESCRIPTION
xml-config is a tool that is used to determine the compile and linker flags that should be used to compile and link programs that use
GNOME-XML.
OPTIONS
xml-config accepts the following options:
--version
Print the currently installed version of GNOME-XML on the standard output. Add the --static option to print the linker flags that
are necessary to statically link a GNOME-XML program.
--libs Print the linker flags that are necessary to link a GNOME-XML program.
--cflags
Print the compiler flags that are necessary to compile a GNOME-XML program.
--prefix=PREFIX
If specified, use PREFIX instead of the installation prefix that GNOME-XML was built with when computing the output for the
--cflags and --libs options. This option must be specified before any --libs or --cflags options.
AUTHOR
This manual page was written by Fredrik Hallenberg <hallon@lysator.liu.se>, for the Debian GNU/linux system (but may be used by others).
Version 3 July 1999 GNOME-XML(1)
11-19-2010
Using Make to batch process files
