Solved

gnumake problem

Posted on 2002-04-09
2
189 Views
Last Modified: 2010-03-31
Having trouble getting gnumake to work (my first time, usually use IDE)

There is a difference between the location of the class files generated by “make” and where “make clean” looks to rm files. When doing a “make clean”, the window will show

make[1]: Entering directory `G:/Dev/Java/JProjectName
rm -f G:\Dev\JProjectName/classes\com\aaa\bbb\main\*.class

This doesn’t correspond to the location of the class files, which are in, for example,
G:\Dev\JProjectName/classes/src/com/aaa/bbb/main/JProjectName.class

(The difference being /src/)
Which is “correct”? That is, does /src/ belong in the path of the class files?  I suspect it does, because the package declaration in the java files contains “src”
That being the case, what needs to be done to get “make clean” to use the correct path?

It also concerns me that there both \ and / in the some statements, but that may not be an issue.

Various info:

JAVA_DEV_ROOT = G:\Dev\Java\JProjectName
JAVA_HOME = C:\jdk1.3.1_01
IS_UNIX = null

Variable values when debugging main makefile

PACKAGE = com.aaa.bbb.main (or com.aaa.bbb.foo2, com.aaa.bbb.foo3)
(one would think this should be src.com.aaa.bbb.main)
PACKAGE_LOC = com/aaa/bbb/main (or com/aaa/bbb/foo2, com/aaa/bbb/foo3)
DESTINATION = G:\Dev\Java\JProjectName/classes
PACKAGE_DIR = G:\Dev\Java\JProjectName/classes/com\aaa\bbb\main (or…)

Directories in the root are:
G:\Dev\Java\JProjectName\classes
G:\Dev\Java\JProjectName\jar
G:\Dev\Java\JProjectName\make
G:\Dev\Java\JProjectName\src

/src/ contains packages:
com/aaa/bbb/main
com/aaa/bbb/foo2
com/aaa/bbb/foo3

Actual paths are:
G:\Dev\Java\JProjectName\src\main
G:\Dev\Java\JProjectName\src\foo2
G:\Dev\Java\JProjectName\src\foo3

The Project makefile (G:\Dev\Java\JProjectName\makefile) is:
PACKAGES = \
   com.aaa.bbb.main\
   com.aaa.bbb.foo2\
   com.aaa.bbb.foo3\
NODOC_PACKAGES = \
JBBB = \
     jprojectname.jar \
JBBB_3RDPARTY = \
MAIN_CLASS     = JProjectName
MAIN_PACKAGE   = com.aaa.bbb.main
MAIN_JAR       = JProjectName.jar
RUN_PARAMETERS =


A package makefile (e.g. G:\Dev\Java\JprojectName\src\com\aaa\bbb\main\makefile) looks like:

PACKAGE = com.aaa.bbb.main
SOURCE  = \
     JProjectName.java \
RMI_SOURCE =
MAIN  = JProjectName.java
include $(JAVA_DEV_ROOT)/Makefile


Example package declaration in a java file:
package src.com.aaa.bbb.main;


Another symptom:

When doing a "make run" I get a NoClassDefFoundError

G:\Dev\Java\ JProjectName >make run
c:\jdk1.3.1_01/bin/java -classpath c:\jdk1.3.1_01/jre/lib/rt.jar;;G:\Dev\Java\ JProjectName /classes;G:\Dev\Java\ JProjectName/jars/jprojectname.jar; com.aaa.bbb.main. JProjectName \

Exception in thread "main" java.lang.NoClassDefFoundError: com/aaa/bbb/main/ JProjectName
make: *** [run] Error 1


0
Comment
Question by:jdaues
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 7

Accepted Solution

by:
Igor Bazarny earned 100 total points
ID: 6928825
Well,
I guess you either need to change PACKAGES value and something not shown here in your build script--it decides to put src between JAVA_DEV_ROOT and package directory, or don't start your package with src. Second option looks right to me, by naming convention your package name should start with your company domain name in reversed order, I doubt it's aaa.com.src.

Generally, your project structure looks OK, when package name doesn't start with src. src/com/aaa/bbb/File.java compiles to classes/com/aaa/bbb/File.class. You have separate directory for sources (src) and package structure below it and directory for compiled classes (classes) with same structure below

Regards,
Igor Bazarny,
Brainbench MVP for Java 1
0
 

Author Comment

by:jdaues
ID: 6929456
Originally, I didn't have "src" in the package names, but in hacking at it to get it to work I added it, though it didn't feel right.  So I have removed it on your advice.

I am compiling the project both with gnumake and with an IDE (Eclipse) and this turned out to be the issue because I had root directory the same (G:\Dev\Java\JProjectName) for them, when in fact they should be different.  For gnumake, the root should be G:\Dev\Java\JProjectName and for Eclipse it should be G:\Dev\Java\JProjectName\src  

So now all is well, thanks.
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

INTRODUCTION Working with files is a moderately common task in Java.  For most projects hard coding the file names, using parameters in configuration files, or using command-line arguments is sufficient.   However, when your application has vi…
In this post we will learn different types of Android Layout and some basics of an Android App.
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …
Viewers will learn about basic arrays, how to declare them, and how to use them. Introduction and definition: Declare an array and cover the syntax of declaring them: Initialize every index in the created array: Example/Features of a basic arr…
Suggested Courses

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question