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diff --git a/cmake/admFFmpegBuild.cmake b/cmake/admFFmpegBuild.cmake
index 317c7dc..32cf4b8 100644
--- a/cmake/admFFmpegBuild.cmake
+++ b/cmake/admFFmpegBuild.cmake
@@ -305,9 +305,15 @@ convertPathToUnix(ffmpeg_gnumake_executable ${BASH_EXECUTABLE})
configure_file("${AVIDEMUX_TOP_SOURCE_DIR}/cmake/ffmpeg_make.sh.cmake" "${FFMPEG_BINARY_DIR}/ffmpeg_make.sh")
registerFFmpeg("${FFMPEG_SOURCE_DIR}" "${FFMPEG_BINARY_DIR}" 0)
+include(ProcessorCount)
+ProcessorCount(N)
+if(NOT N EQUAL 0)
+ set(JOBS_IN_PARALLEL -j${N})
+endif(NOT N EQUAL 0)
+
if(CMAKE_HOST_UNIX)
add_custom_target( libavutil_dummy
- COMMAND ${CMAKE_BUILD_TOOL} -j 4 # We assume make or gnumake when host is unix
+ COMMAND ${CMAKE_MAKE_PROGRAM} ${JOBS_IN_PARALLEL} # We assume make or gnumake when host is unix
WORKING_DIRECTORY "${FFMPEG_BINARY_DIR}")
else(CMAKE_HOST_UNIX)
add_custom_target( libavutil_dummy
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