error log libjs.so

gistfile1.txt

==== Building wxjs ====
engine.cpp
Linking wxjs
/usr/bin/ld: warning: libnspr.so, needed by ../../bin/Debug/libjs.so, not found (try using -rpath or -rpath-link)
../../bin/Debug/libjs.so: undefined reference to `PR_NotifyAllCondVar'
../../bin/Debug/libjs.so: undefined reference to `PR_NewThreadPrivateIndex'
../../bin/Debug/libjs.so: undefined reference to `PR_AtomicDecrement'
../../bin/Debug/libjs.so: undefined reference to `PR_WaitCondVar'
../../bin/Debug/libjs.so: undefined reference to `PR_GetCurrentThread'
../../bin/Debug/libjs.so: undefined reference to `PR_NewCondVar'
../../bin/Debug/libjs.so: undefined reference to `PR_AtomicIncrement'
../../bin/Debug/libjs.so: undefined reference to `PR_GetThreadPrivate'
../../bin/Debug/libjs.so: undefined reference to `PR_DestroyLock'
../../bin/Debug/libjs.so: undefined reference to `PR_SetThreadPrivate'
../../bin/Debug/libjs.so: undefined reference to `PR_Unlock'
../../bin/Debug/libjs.so: undefined reference to `PR_Lock'
../../bin/Debug/libjs.so: undefined reference to `PR_DestroyCondVar'
../../bin/Debug/libjs.so: undefined reference to `PR_NewLock'
../../bin/Debug/libjs.so: undefined reference to `PR_NotifyCondVar'
collect2: ld returned 1 exit status
make[1]: *** [../../bin/Debug/wxJS] Error 1
make: *** [wxjs] Error 2