vcpkg/ports/cudnn/FindCUDNN.cmake

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# Distributed under the OSI-approved BSD 3-Clause License.
#.rst:
# FindCUDNN
# --------
#
# Result Variables
# ^^^^^^^^^^^^^^^^
#
# This module will set the following variables in your project::
#
# ``CUDNN_FOUND``
# True if CUDNN found on the local system
#
# ``CUDNN_INCLUDE_DIRS``
# Location of CUDNN header files.
#
# ``CUDNN_LIBRARIES``
# The CUDNN libraries.
#
# ``CuDNN::CuDNN``
# The CUDNN target
#
include(FindPackageHandleStandardArgs)
find_path(CUDNN_INCLUDE_DIR NAMES cudnn.h cudnn_v8.h cudnn_v7.h
HINTS $ENV{CUDA_PATH} $ENV{CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN} $ENV{CUDNN_ROOT_DIR} /usr/include
PATH_SUFFIXES cuda/include include)
find_library(CUDNN_LIBRARY NAMES cudnn cudnn8 cudnn7
HINTS $ENV{CUDA_PATH} $ENV{CUDA_TOOLKIT_ROOT_DIR} $ENV{cudnn} $ENV{CUDNN} $ENV{CUDNN_ROOT_DIR} /usr/lib/x86_64-linux-gnu/ /usr/
PATH_SUFFIXES lib lib64 cuda/lib cuda/lib64 lib/x64 cuda/lib/x64)
if(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn.h")
file(READ ${CUDNN_INCLUDE_DIR}/cudnn.h CUDNN_HEADER_CONTENTS)
elseif(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_v8.h")
file(READ ${CUDNN_INCLUDE_DIR}/cudnn_v8.h CUDNN_HEADER_CONTENTS)
elseif(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_v7.h")
file(READ ${CUDNN_INCLUDE_DIR}/cudnn_v7.h CUDNN_HEADER_CONTENTS)
endif()
if(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_version.h")
file(READ "${CUDNN_INCLUDE_DIR}/cudnn_version.h" CUDNN_VERSION_H_CONTENTS)
string(APPEND CUDNN_HEADER_CONTENTS "${CUDNN_VERSION_H_CONTENTS}")
unset(CUDNN_VERSION_H_CONTENTS)
elseif(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_version_v8.h")
file(READ "${CUDNN_INCLUDE_DIR}/cudnn_version_v8.h" CUDNN_VERSION_H_CONTENTS)
string(APPEND CUDNN_HEADER_CONTENTS "${CUDNN_VERSION_H_CONTENTS}")
unset(CUDNN_VERSION_H_CONTENTS)
elseif(EXISTS "${CUDNN_INCLUDE_DIR}/cudnn_version_v7.h")
file(READ "${CUDNN_INCLUDE_DIR}/cudnn_version_v7.h" CUDNN_VERSION_H_CONTENTS)
string(APPEND CUDNN_HEADER_CONTENTS "${CUDNN_VERSION_H_CONTENTS}")
unset(CUDNN_VERSION_H_CONTENTS)
endif()
if(CUDNN_HEADER_CONTENTS)
string(REGEX MATCH "define CUDNN_MAJOR * +([0-9]+)"
_CUDNN_VERSION_MAJOR "${CUDNN_HEADER_CONTENTS}")
string(REGEX REPLACE "define CUDNN_MAJOR * +([0-9]+)" "\\1"
_CUDNN_VERSION_MAJOR "${_CUDNN_VERSION_MAJOR}")
string(REGEX MATCH "define CUDNN_MINOR * +([0-9]+)"
_CUDNN_VERSION_MINOR "${CUDNN_HEADER_CONTENTS}")
string(REGEX REPLACE "define CUDNN_MINOR * +([0-9]+)" "\\1"
_CUDNN_VERSION_MINOR "${_CUDNN_VERSION_MINOR}")
string(REGEX MATCH "define CUDNN_PATCHLEVEL * +([0-9]+)"
_CUDNN_VERSION_PATCH "${CUDNN_HEADER_CONTENTS}")
string(REGEX REPLACE "define CUDNN_PATCHLEVEL * +([0-9]+)" "\\1"
_CUDNN_VERSION_PATCH "${_CUDNN_VERSION_PATCH}")
if(NOT _CUDNN_VERSION_MAJOR)
set(_CUDNN_VERSION "?")
else()
set(_CUDNN_VERSION "${_CUDNN_VERSION_MAJOR}.${_CUDNN_VERSION_MINOR}.${_CUDNN_VERSION_PATCH}")
endif()
endif()
set(CUDNN_INCLUDE_DIRS ${CUDNN_INCLUDE_DIR})
set(CUDNN_LIBRARIES ${CUDNN_LIBRARY})
mark_as_advanced(CUDNN_LIBRARY CUDNN_INCLUDE_DIR)
find_package_handle_standard_args(CUDNN
REQUIRED_VARS CUDNN_INCLUDE_DIR CUDNN_LIBRARY
VERSION_VAR CUDNN_VERSION
)
if(WIN32)
set(CUDNN_DLL_DIR ${CUDNN_INCLUDE_DIR})
list(TRANSFORM CUDNN_DLL_DIR APPEND "/../bin")
find_file(CUDNN_LIBRARY_DLL NAMES cudnn64_${CUDNN_VERSION_MAJOR}.dll PATHS ${CUDNN_DLL_DIR})
endif()
if( CUDNN_FOUND AND NOT TARGET CuDNN::CuDNN )
if( EXISTS "${CUDNN_LIBRARY_DLL}" )
add_library( CuDNN::CuDNN SHARED IMPORTED )
set_target_properties( CuDNN::CuDNN PROPERTIES
IMPORTED_LOCATION "${CUDNN_LIBRARY_DLL}"
IMPORTED_IMPLIB "${CUDNN_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${CUDNN_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C" )
else()
add_library( CuDNN::CuDNN UNKNOWN IMPORTED )
set_target_properties( CuDNN::CuDNN PROPERTIES
IMPORTED_LOCATION "${CUDNN_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${CUDNN_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C" )
endif()
endif()