dolphin/CMakeTests/CheckLib.cmake

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CMake
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macro(check_lib var lib required)
pkg_search_module(${var} ${lib})
if(${var}_FOUND)
message("${lib} found")
else()
find_library(${var} ${lib})
if(${var})
message("${lib} found")
set(${var}_FOUND 1 CACHE INTERNAL "")
else()
if(${required} STREQUAL "REQUIRED")
message(FATAL_ERROR "${lib} is required but not found")
else()
message("${lib} not found")
endif()
endif()
endif()
endmacro()