FreeBSD?

I run ant and get
[java]      [gant] java.lang.UnsatisfiedLinkError: Unable to load library 'c': /usr/lib/libc.so: invalid file format
[java]      [gant]         at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:169)

      [java]      [gant] ERROR: Failed to load filesystem access layer (FreeBSD, 1.6.0_32, false)

--------------------------------- THIS MESSAGE EDITOR IS BROKEN! -----------------------------------------------------

[java]      [gant] java.lang.UnsatisfiedLinkError: Unable to load library 'c': /usr/lib/libc.so: invalid file format
[java]      [gant]         at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:169)
[java]      [gant]         at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:242)