forked from osmocom/wireshark
53 lines
1.7 KiB
CMake
53 lines
1.7 KiB
CMake
#
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# - Find math
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# Find the native M includes and library
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#
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# M_INCLUDE_DIRS - where to find math.h, etc.
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# M_LIBRARIES - List of libraries when using math.
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# M_FOUND - True if math found.
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IF (M_INCLUDE_DIRS)
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# Already in cache, be silent
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SET(M_FIND_QUIETLY TRUE)
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ENDIF (M_INCLUDE_DIRS)
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#
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# On macOS, make sure we do *NOT* find math.h in the Kernel framework,
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# as that will convince CMake to cause the build to look there for
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# headers.
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#
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# For some unknown reason, on Yosemite, math.h is included in the Kernel
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# framework. That framework exists to supply headers for building
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# *kernel* modules; it includes versions of C headers that are similar
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# to the standard userland headers, but not similar enough to be usable
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# when building userland code.
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#
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# Unless told not to look first in the framework paths, CMake will, on
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# Yosemite, or when using the Yosemite SDK, find math.h in the Kernel
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# framework, and add the header directory for the Kernel framework to
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# the list of places to look for headers, causing it to pick up other
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# headers from there as well. This causes the build to fail.
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#
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SET(SAVED_CMAKE_FIND_FRAMEWORK ${CMAKE_FIND_FRAMEWORK})
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SET(CMAKE_FIND_FRAMEWORK LAST)
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FIND_PATH(M_INCLUDE_DIR math.h)
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SET(CMAKE_FIND_FRAMEWORK ${SAVED_CMAKE_FIND_FRAMEWORK})
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set(M_LIBRARY m)
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# handle the QUIETLY and REQUIRED arguments and set M_FOUND to TRUE if
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# all listed variables are TRUE
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INCLUDE(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(M DEFAULT_MSG M_LIBRARY M_INCLUDE_DIR)
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IF(M_FOUND)
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SET( M_LIBRARIES ${M_LIBRARY} )
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SET( M_INCLUDE_DIRS ${M_INCLUDE_DIR} )
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ELSE(M_FOUND)
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SET( M_LIBRARIES )
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SET( M_INCLUDE_DIRS )
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ENDIF(M_FOUND)
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MARK_AS_ADVANCED( M_LIBRARIES M_INCLUDE_DIRS )
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