Fix building without threads (pthreads).
Note: 'configure --disable-threads' or 'cmake -DOPTION_USE_THREADS=OFF'. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12137 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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@ -401,13 +401,16 @@ void lock_ring() {
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pthread_mutex_lock(ring_mutex);
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}
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#else
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#else // ! HAVE_PTHREAD
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void Fl_Posix_System_Driver::awake(void*) {}
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int Fl_Posix_System_Driver::lock() { return 1; }
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void Fl_Posix_System_Driver::unlock() {}
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void* Fl_Posix_System_Driver::thread_message() { return NULL; }
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void lock_ring() {}
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void unlock_ring() {}
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#endif // HAVE_PTHREAD
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