2024-05-09 15:14:01 +08:00

130 lines
5.0 KiB
CMake

# - Try to find ESMF
#
# Requires setting ESMFMKFILE to the filepath of esmf.mk. If this is NOT set,
# then ESMF_FOUND will always be FALSE. If ESMFMKFILE exists, then ESMF_FOUND=TRUE
# and all ESMF makefile variables will be set in the global scope. Optionally,
# set ESMF_MKGLOBALS to a string list to filter makefile variables. For example,
# to globally scope only ESMF_LIBSDIR and ESMF_APPSDIR variables, use this CMake
# command in CMakeLists.txt:
#
# set(ESMF_MKGLOBALS "LIBSDIR" "APPSDIR")
# Add the ESMFMKFILE path to the cache if defined as system env variable
if (DEFINED ENV{ESMFMKFILE} AND NOT DEFINED ESMFMKFILE)
set(ESMFMKFILE $ENV{ESMFMKFILE} CACHE FILEPATH "Path to ESMF mk file")
endif ()
# Found the mk file and ESMF exists on the system
if (EXISTS ${ESMFMKFILE})
set(ESMF_FOUND TRUE CACHE BOOL "ESMF mk file found" FORCE)
# Did not find the ESMF mk file
else()
set(ESMF_FOUND FALSE CACHE BOOL "ESMF mk file NOT found" FORCE)
# Best to warn users that without the mk file there is no way to find ESMF
if (NOT DEFINED ESMFMKFILE)
message(FATAL_ERROR "ESMFMKFILE not defined. This is the path to esmf.mk file. \
Without this filepath, ESMF_FOUND will always be FALSE.")
endif ()
endif()
# Only parse the mk file if it is found
if (ESMF_FOUND)
# Read the mk file
file(STRINGS "${ESMFMKFILE}" esmfmkfile_contents)
# Parse each line in the mk file
foreach(str ${esmfmkfile_contents})
# Only consider uncommented lines
string(REGEX MATCH "^[^#]" def ${str})
# Line is not commented
if (def)
# Extract the variable name
string(REGEX MATCH "^[^=]+" esmf_varname ${str})
# Extract the variable's value
string(REGEX MATCH "=.+$" esmf_vardef ${str})
# Only for variables with a defined value
if (esmf_vardef)
# Get rid of the assignment string
string(SUBSTRING ${esmf_vardef} 1 -1 esmf_vardef)
# Remove whitespace
string(STRIP ${esmf_vardef} esmf_vardef)
# A string or single-valued list
if(NOT DEFINED ESMF_MKGLOBALS)
# Set in global scope
set(${esmf_varname} ${esmf_vardef})
# Don't display by default in GUI
mark_as_advanced(esmf_varname)
else() # Need to filter global promotion
foreach(m ${ESMF_MKGLOBALS})
string(FIND ${esmf_varname} ${m} match)
# Found the string
if(NOT ${match} EQUAL -1)
# Promote to global scope
set(${esmf_varname} ${esmf_vardef})
# Don't display by default in the GUI
mark_as_advanced (esmf_varname)
# No need to search for the current string filter
break()
endif()
endforeach()
endif()
endif()
endif()
endforeach()
# Construct ESMF_VERSION from ESMF_VERSION_STRING_GIT
if(ESMF_FOUND)
# ESMF_VERSION_MAJOR and ESMF_VERSION_MINOR are defined in ESMFMKFILE
set(ESMF_VERSION 0)
set(ESMF_VERSION_PATCH ${ESMF_VERSION_REVISION})
set(ESMF_BETA_RELEASE FALSE)
if(ESMF_VERSION_BETASNAPSHOT MATCHES "^('T')$")
set(ESMF_BETA_RELEASE TRUE)
string(REGEX REPLACE ".*beta_snapshot_*\([0-9]*\).*" "\\1" ESMF_BETA_SNAPSHOT "${ESMF_VERSION_STRING_GIT}")
endif()
set(ESMF_VERSION "${ESMF_VERSION_MAJOR}.${ESMF_VERSION_MINOR}.${ESMF_VERSION_PATCH}")
endif()
separate_arguments(ESMF_F90COMPILEPATHS NATIVE_COMMAND ${ESMF_F90COMPILEPATHS})
foreach (ITEM ${ESMF_F90COMPILEPATHS})
string(REGEX REPLACE "^-I" "" ITEM "${ITEM}")
list(APPEND tmp ${ITEM})
endforeach()
set(ESMF_F90COMPILEPATHS ${tmp})
add_library(esmf UNKNOWN IMPORTED)
# Look for static library, if not found try dynamic library
find_library(esmf_lib NAMES libesmf.a PATHS ${ESMF_LIBSDIR})
if(esmf_lib MATCHES "esmf_lib-NOTFOUND")
message(STATUS "Static ESMF library not found, searching for dynamic library instead")
find_library(esmf_lib NAMES esmf_fullylinked PATHS ${ESMF_LIBSDIR})
if(esmf_lib MATCHES "esmf_lib-NOTFOUND")
message(FATAL_ERROR "Neither the dynamic nor the static ESMF library was found")
endif()
set(ESMF_INTERFACE_LINK_LIBRARIES "")
else()
# When linking the static library, also need the ESMF linker flags; strip any leading/trailing whitespaces
string(STRIP "${ESMF_F90ESMFLINKRPATHS} ${ESMF_F90ESMFLINKPATHS} ${ESMF_F90LINKPATHS} ${ESMF_F90LINKLIBS} ${ESMF_F90LINKOPTS}" ESMF_INTERFACE_LINK_LIBRARIES)
endif()
message(STATUS "Found ESMF library: ${esmf_lib}")
if(ESMF_BETA_RELEASE)
message(STATUS "Detected ESMF Beta snapshot ${ESMF_BETA_SNAPSHOT}")
endif()
set_target_properties(esmf PROPERTIES
IMPORTED_LOCATION ${esmf_lib}
INTERFACE_INCLUDE_DIRECTORIES "${ESMF_F90COMPILEPATHS}"
INTERFACE_LINK_LIBRARIES "${ESMF_INTERFACE_LINK_LIBRARIES}")
endif()
## Finalize find_package
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args( ${CMAKE_FIND_PACKAGE_NAME}
REQUIRED_VARS ESMF_LIBSDIR
ESMF_INTERFACE_LINK_LIBRARIES
ESMF_F90COMPILEPATHS
VERSION_VAR ESMF_VERSION
HANDLE_COMPONENTS )