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+
+Deadlocks (freezes) on FreeBSD:
+
+OpenCL applications using pocl on FreeBSD must be compiled with
+options CFLAGS+=-pthread or CXXFLAGS+=-pthread, otherwise someone risk
+that a library may not initialize the threading on BSD independently,
+even if an ICD loader is used.
+
+See:
+ http://www.freebsd.org/cgi/query-pr.cgi?pr=163512
+
+(Source: http://portablecl.org/docs/html/faq.html?highlight=freebsd)