<javac> faild for long command lines on OS/2. PR 49425. Submitted by <dmik DOT for MINUS maillists AT hugaida DOT com>

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@953594 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -51,6 +51,9 @@ Fixed bugs:
    itself.
    Bugzilla Report 49420.
 
+ * <javac> failed for long command lines on OS/2.
+   Bugzilla Report 49425.
+
 Other changes:
 --------------
 

src/main/org/apache/tools/ant/taskdefs/compilers/DefaultCompilerAdapter.java

@@ -45,7 +45,15 @@ import org.apache.tools.ant.taskdefs.condition.Os;
  * @since Ant 1.3
  */
 public abstract class DefaultCompilerAdapter implements CompilerAdapter {
-    private static final int COMMAND_LINE_LIMIT = 4096;  // 4K
+    private static final int COMMAND_LINE_LIMIT;
+    static {
+        if (Os.isFamily("os/2")) {
+            // OS/2 CMD.EXE has a much smaller limit around 1K
+            COMMAND_LINE_LIMIT = 1000;
+        } else {
+            COMMAND_LINE_LIMIT = 4096;  // 4K
+        }
+    }
     // CheckStyle:VisibilityModifier OFF - bc
 
     private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();