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# ---[ gflags
# We will try to use the config mode first, and then manual find.
find_package(gflags CONFIG QUIET)
if(NOT TARGET gflags)
find_package(gflags MODULE QUIET)
endif()
if(TARGET gflags)
message(STATUS "Caffe2: Found gflags with new-style gflags target.")
elseif(GFLAGS_FOUND)
message(STATUS "Caffe2: Found gflags with old-style gflag starget.")
add_library(gflags UNKNOWN IMPORTED)
set_property(
TARGET gflags PROPERTY IMPORTED_LOCATION ${GFLAGS_LIBRARY})
set_property(
TARGET gflags PROPERTY INTERFACE_INCLUDE_DIRECTORIES
${GFLAGS_INCLUDE_DIR})
else()
message(STATUS
"Caffe2: Cannot find gflags automatically. Using legacy find.")
# - Try to find GFLAGS in the legacy way.
#
# The following variables are optionally searched for defaults
# GFLAGS_ROOT_DIR: Base directory where all GFLAGS components are found
#
# The following are set after configuration is done:
# GFLAGS_FOUND
# GFLAGS_INCLUDE_DIRS
# GFLAGS_LIBRARIES
# GFLAGS_LIBRARYRARY_DIRS
include(FindPackageHandleStandardArgs)
set(GFLAGS_ROOT_DIR "" CACHE PATH "Folder contains Gflags")
# We are testing only a couple of files in the include directories
if(WIN32)
find_path(GFLAGS_INCLUDE_DIR gflags/gflags.h
PATHS ${GFLAGS_ROOT_DIR}/src/windows)
else()
find_path(GFLAGS_INCLUDE_DIR gflags/gflags.h
PATHS ${GFLAGS_ROOT_DIR})
endif()
if(WIN32)
find_library(GFLAGS_LIBRARY_RELEASE
NAMES libgflags
PATHS ${GFLAGS_ROOT_DIR}
PATH_SUFFIXES Release)
find_library(GFLAGS_LIBRARY_DEBUG
NAMES libgflags-debug
PATHS ${GFLAGS_ROOT_DIR}
PATH_SUFFIXES Debug)
set(GFLAGS_LIBRARY optimized ${GFLAGS_LIBRARY_RELEASE} debug ${GFLAGS_LIBRARY_DEBUG})
else()
find_library(GFLAGS_LIBRARY gflags)
endif()
find_package_handle_standard_args(
gflags DEFAULT_MSG GFLAGS_INCLUDE_DIR GFLAGS_LIBRARY)
if(GFLAGS_FOUND)
message(
STATUS
"Caffe2: Found gflags (include: ${GFLAGS_INCLUDE_DIR}, "
"library: ${GFLAGS_LIBRARY})")
add_library(gflags UNKNOWN IMPORTED)
set_property(
TARGET gflags PROPERTY IMPORTED_LOCATION ${GFLAGS_LIBRARY})
set_property(
TARGET gflags PROPERTY INTERFACE_INCLUDE_DIRECTORIES
${GFLAGS_INCLUDE_DIR})
endif()
endif()
# After above, we should have the gflags target now.
if(NOT TARGET gflags)
message(WARNING
"Caffe2: gflags cannot be found. Depending on whether you are building "
"Caffe2 or a Caffe2 dependent library, the next warning / error will "
"give you more info.")
endif()
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