portaudio.cmake
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function(download_portaudio)
include(FetchContent)
set(portaudio_URL "http://files.portaudio.com/archives/pa_stable_v190700_20210406.tgz")
set(portaudio_HASH "SHA256=47efbf42c77c19a05d22e627d42873e991ec0c1357219c0d74ce6a2948cb2def")
# If you don't have access to the Internet, please download it to your
# local drive and modify the following line according to your needs.
set(possible_file_locations
$ENV{HOME}/Downloads/pa_stable_v190700_20210406.tgz
$ENV{HOME}/asr/pa_stable_v190700_20210406.tgz
${PROJECT_SOURCE_DIR}/pa_stable_v190700_20210406.tgz
${PROJECT_BINARY_DIR}/pa_stable_v190700_20210406.tgz
/tmp/pa_stable_v190700_20210406.tgz
/star-fj/fangjun/download/github/pa_stable_v190700_20210406.tgz
)
foreach(f IN LISTS possible_file_locations)
if(EXISTS ${f})
set(portaudio_URL "file://${f}")
break()
endif()
endforeach()
if(BUILD_SHARED_LIBS)
set(PA_BUILD_SHARED ON CACHE BOOL "" FORCE)
set(PA_BUILD_STATIC OFF CACHE BOOL "" FORCE)
else()
set(PA_BUILD_SHARED OFF CACHE BOOL "" FORCE)
set(PA_BUILD_STATIC ON CACHE BOOL "" FORCE)
endif()
FetchContent_Declare(portaudio
URL ${portaudio_URL}
URL_HASH ${portaudio_HASH}
)
FetchContent_GetProperties(portaudio)
if(NOT portaudio_POPULATED)
message(STATUS "Downloading portaudio from ${portaudio_URL}")
FetchContent_Populate(portaudio)
endif()
message(STATUS "portaudio is downloaded to ${portaudio_SOURCE_DIR}")
message(STATUS "portaudio's binary dir is ${portaudio_BINARY_DIR}")
if(APPLE)
set(CMAKE_MACOSX_RPATH ON) # to solve the following warning on macOS
endif()
add_subdirectory(${portaudio_SOURCE_DIR} ${portaudio_BINARY_DIR} EXCLUDE_FROM_ALL)
endfunction()
download_portaudio()
# Note
# See http://portaudio.com/docs/v19-doxydocs/tutorial_start.html
# for how to use portaudio