Index: bench/CMakeLists.txt
--- bench/CMakeLists.txt.orig
+++ bench/CMakeLists.txt
@@ -26,7 +26,7 @@ add_executable(sum_openmp ${SOURCES_SUM_OPENMP})
 add_executable(zero_runlen ${SOURCES_ZERO_RUNLEN})
 add_executable(create_frame ${SOURCES_CFRAME})
 add_executable(sframe_bench ${SOURCES_SFRAME})
-if(UNIX AND NOT APPLE)
+if(UNIX AND NOT APPLE AND NOT CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
     # cmake is complaining about LINK_PRIVATE in original PR
     # and removing it does not seem to hurt, so be it.
     # target_link_libraries(b2bench LINK_PRIVATE rt)
