ceph/cmake/modules/Findpmem.cmake
Kefu Chai 48e4cd190f cmake: support COMPONENTS param in Findpmem.cmake
add two components: pmem and pmemobj to this package. so we can find
them and link against them in a more intuitive way.

before this change the COMPONENTS parameter passed to

find_package(pmem ...)

is dropped on the floor and ignored.

after this change, it is checked and taken into consideration.

also, in this change, the exposed variables are renamed from

PMEM_* to pmem_*

to be consistent with the package name. it's encouraged to be consistent
with the package name when it comes to the INCLUDE_DIR and LIBRARIES
variable names.

Signed-off-by: Kefu Chai <kchai@redhat.com>
2021-03-06 12:25:37 +08:00

48 lines
1.6 KiB
CMake

# - Find pmem
#
# pmem_INCLUDE_DIRS - Where to find libpmem headers
# pmem_LIBRARIES - List of libraries when using libpmem.
# pmem_FOUND - True if pmem found.
foreach(component pmem ${pmem_FIND_COMPONENTS})
if(component STREQUAL pmem)
find_path(pmem_${component}_INCLUDE_DIR libpmem.h)
find_library(pmem_${component}_LIBRARY pmem)
elseif(component STREQUAL pmemobj)
find_path(pmem_${component}_INCLUDE_DIR libpmemobj.h)
find_library(pmem_${component}_LIBRARY pmemobj)
else()
message(FATAL_ERROR "unknown libpmem component: ${component}")
endif()
mark_as_advanced(
pmem_${component}_INCLUDE_DIR
pmem_${component}_LIBRARY)
list(APPEND pmem_INCLUDE_DIRS "pmem_${component}_INCLUDE_DIR")
list(APPEND pmem_LIBRARIES "pmem_${component}_LIBRARY")
endforeach()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(pmem
DEFAULT_MSG pmem_INCLUDE_DIRS pmem_LIBRARIES)
mark_as_advanced(
pmem_INCLUDE_DIRS
pmem_LIBRARIES)
if(pmem_FOUND)
foreach(component pmem ${pmem_FIND_COMPONENTS})
if(NOT TARGET pmem::${component})
add_library(pmem::${component} UNKNOWN IMPORTED)
set_target_properties(pmem::${component} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${pmem_${component}_INCLUDE_DIR}"
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${pmem_${component}_LIBRARY}")
# all pmem libraries calls into pmem::pmem
if(NOT component STREQUAL pmem)
set_target_properties(pmem::${component} PROPERTIES
INTERFACE_LINK_LIBRARIES pmem::pmem)
endif()
endif()
endforeach()
endif()