如何告诉 ant 使用特定的 javac 可执行文件进行构建? [英] How to tell ant to build using a specific javac executable?

问题描述

如何从命令行告诉 ant 使用特定的 javac 可执行文件?

How can I tell ant to use a specific javac executable from the command line?

我在我们分发的库中安装了 gcj，它是作为 gcc 的一部分构建的，我希望有一个针对它构建的特定 Java 软件.但是，它似乎只是使用了 system-gcc，而诸如-Dbuild.compiler"之类的选项似乎要我指定某种 Java 类而不是文件路径.

I have an installation of gcj, built as part of gcc, within a library we distribute, and I'd like to have a particular piece of Java software built against that. However, it just seems to use the system-gcc, and options such as "-Dbuild.compiler" seem to want me to specify some kind of Java class rather than a filepath.

我希望在 Makefile 中有类似于 CC 的东西.

I was hoping for something similar to CC in Makefiles.

我确定这很简单，只是我太笨了.

I'm sure it's something really simple, and I'm just being stupid.

明确地说，如果可能的话，我想避免自己编辑构建文件.有没有一些标准的方法可以简单地在命令行上指定编译器给 ant?我不介意构建文件在某种意义上表现良好"的假设.

To be clear, I'd like to avoid editing the build file myself if possible. Is there not some standard way to simply specify the compiler on the command-line to ant? I don't mind the assumption that the buildfile is "well-behaved" in some sense.

推荐答案

如果您使用的是 Ant 1.6 或更高版本，您可以设置 javac 属性 fork="yes".这使您能够在使用 jikes、jvc、gcj、sj 或您正在使用的任何版本的 javac 时指定可执行文件的路径.

If you are using Ant 1.6 or higher, you can set the javac attribute fork="yes". This gives you the ability to specify the path of your executable when using jikes, jvc, gcj, sj, or whatever version of javac you are using.

  <javac srcdir="${src}"
         destdir="${build}"
         fork="yes"
         executable="/opt/java/jdk1.1/bin/javac"
         compiler="javac1.1"
  />

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