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Make Utility Question

 
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Old 11-10-2012
In this makefile, test has dependencies on dep1.o and dep2.o, dep1.o has a dependency on dep1.c, and dep2.o has a dependency on dep2.c. If your commands to update dep1.o and dep2.o don't create dep1.c and dep2.c, respectively, before updating dep1.o and dep2.o then dep1.o and dep2.o will never be considered up-to-date and will have to be rebuilt every time you check to see if test is up-to-date.

Normally, for something like this you would start out with dep1.c and dep2.c and make would use something like cc -c dep1.c to create dep1.o, cc -c dep2.c to create dep2.o, and the commands to update test would then link dep1.o, dep2.o, and whatever startup code is needed to produce test. Then subsequent invocations of make wouldn't need to do anything until you updated one of your C source files.
 
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LEARN ABOUT DEBIAN

mh_patchpoms

MAVEN(1)							   User Commands							  MAVEN(1)

NAME

       Maven - Patches the POM files using the Maven dependency rules.

SYNOPSIS

       mh_patchpoms [option]...

DESCRIPTION

       Reads  the  file  debian/$package.poms and tranform each POM file listed in the .poms file into a POM file using the Debian versions of the
       libraries. Also keeps a backup of each POM file which can be restored with mh_unpatchpoms

OPTIONS

       -h --help: show this text

       -V --version: show the version

       -p<package> --package=<package>: package to act on

       -k --keep-pom-version: keep the original version of the POMs but,

	      convert all other versions in dependencies and plugins If there is a parent POM, keeps its version except when the parent is already
	      registered in the Maven repository

       -e<version>, --set-version=<version>: set the version for the POM,

	      do not use the version declared in the POM file.

       -r<rules> --rules=<rules>: path to the file containing the

	      rules to apply when cleaning the POM.  Optional, the default location is debian/maven.rules

       -R<rule>, --extra-rule=<rule>: extra rule to apply when cleaning the POM

	      May occur multiple times, instead of or in addition to -r

       -u<rules> --published-rules=<rules>: path to the file containing the

	      extra  rules  to	publish in the property debian.mavenRules in the cleaned POM.  Optional, the default location is debian/maven.pub-
	      lishedRules

       -U<rule>, --extra-published-rule=<rule>: extra rule to publish

	      May occur multiple times, instead of or in addition to -u

       -i<rules> --ignore-rules=<rules>: path to the file containing the

	      rules used to remove certain dependencies from the cleaned POM Optional, the default location is debian/maven.ignoreRules

       -I<rule>, --extra-ignore-rule=<rule>: extra rule used to remove dependencies

	      from the transformed POM May occur multiple times, instead of or in addition to -i

       -c<rules> --clean-ignore-rules=<rules>: path to the file containing the

	      rules use to remove certain dependencies from the cleaned POM, in addition to the ignore rules specified previously. This is  useful
	      in  situations such as when the Maven clean target requires more dependencies or plugins to ignore than the build target.  All rules
	      defined in  clean-ignore-rules  will  be	added  to  the	existing  rules  in  ignore-rules.   Optional,	the  default  location	is
	      debian/maven.cleanIgnoreRules

       -s --no-rules: don't apply any rules for converting versions,

	      do not even convert versions to the default 'debian' version

       --no-publish-used-rule: don't publish the rule used to transform

	      a POM's own attributes in debian.mavenRules

       -d --debian-build: transform during a Debian build, which means that

	      some POM elements will be removed

       -b --build-no-docs: if the build doesn't need to build documentation, use this

	      option  to  remove  some POM elements (in particular plugins) which are useless here and may require extra dependencies and make the
	      packaging harder.

       -m<repo root>--maven-repo=<repo root>: location of the Maven repository,

	      used to force the versions of the Maven plugins used in the current POM file with the versions found in the repository

       -v --verbose: show more information while running

       -n --no-act: don't actually do anything, just print the results

       See also: mh_installpoms(1), mh_patchpom(1)

Maven Repo Helper version 1.7.1 				   January 2012 							  MAVEN(1)