Failed JPL installation

Hello, Everyone:
       When I tried to install JPL on my Red Hat 6.2 linux machine I always get
following messages:

         -<Error Message>-----------------------------------------------------
Testing Sample...
+ cd Sample
+ JPLDEBUG=1
+ export JPLDEBUG
+ java Sample

Exception in thread "main" java.lang.UnsatisfiedLinkError:
/usr/local/src/JPL-08201999/Sample/libSample.so: undefined symbol:
crypt
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1382)
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1306)
        at java.lang.Runtime.loadLibrary0(Runtime.java:749)
        at java.lang.System.loadLibrary(System.java:820)
        at Sample.<clinit>(Sample.java:47)
Couldn't run Sample

I think some of you in this list have met such problems before. Could anyone
help me for this? I have set the LD_LIBRARY_PATH  to find libcrypt.a already.
But it still does not work. Thank you very much for your help!!!




Qing