9535126f93
git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@14902 54d463be-8e91-2dee-dedb-b68131a5f0ec
48 lines
1.7 KiB
CMake
48 lines
1.7 KiB
CMake
# - Check which library is needed to link a C function
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# find_function_library( <function> <variable> [<library> ...] )
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#
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# Check which library provides the <function>.
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# Sets <variable> to 0 if found in the global libraries.
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# Sets <variable> to the library path if found in the provided libraries.
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# Raises a FATAL_ERROR if not found.
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#
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# The following variables may be set before calling this macro to
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# modify the way the check is run:
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#
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# CMAKE_REQUIRED_FLAGS = string of compile command line flags
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# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
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# CMAKE_REQUIRED_INCLUDES = list of include directories
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# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
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include( CheckFunctionExists )
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macro( find_function_library FUNC VAR )
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if( "${VAR}" MATCHES "^${VAR}$" )
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CHECK_FUNCTION_EXISTS( ${FUNC} ${VAR} )
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if( ${VAR} )
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message( STATUS "Found ${FUNC} in global libraries" )
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set( ${VAR} 0 CACHE INTERNAL "Found ${FUNC} in global libraries" )# global
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else()
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foreach( LIB IN ITEMS ${ARGN} )
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message( STATUS "Looking for ${FUNC} in ${LIB}" )
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find_library( ${LIB}_LIBRARY ${LIB} )
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mark_as_advanced( ${LIB}_LIBRARY )
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if( ${LIB}_LIBRARY )
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unset( ${VAR} CACHE )
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set( CMAKE_REQUIRED_LIBRARIES ${${LIB}_LIBRARY} )
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CHECK_FUNCTION_EXISTS( ${FUNC} ${VAR} )
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set( CMAKE_REQUIRED_LIBRARIES )
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if( ${VAR} )
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message( STATUS "Found ${FUNC} in ${LIB}: ${${LIB}_LIBRARY}" )
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set( ${VAR} ${${LIB}_LIBRARY} CACHE INTERNAL "Found ${FUNC} in ${LIB}" )# lib
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break()
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endif()
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endif()
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endforeach()
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if( NOT ${VAR} )
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message( FATAL_ERROR "Function ${FUNC} not found" )
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endif()
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endif()
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endif()
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endmacro( find_function_library )
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