Add static linking option

Author: KFilipek

CMakeLists.txt

@@ -14,6 +14,11 @@ set(UMF_CMAKE_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 list(APPEND CMAKE_MODULE_PATH "${UMF_CMAKE_SOURCE_DIR}/cmake")
 include(${UMF_CMAKE_SOURCE_DIR}/cmake/helpers.cmake)
 
+include(CTest)
+include(CMakePackageConfigHelpers)
+include(GNUInstallDirs)
+find_package(PkgConfig)
+
 # CMAKE_PROJECT_VERSION[_MAJOR|_MINOR|_PATCH] variables are set via 'project'
 # command. They cannot contain any "pre-release" part, though. We use custom
 # "UMF_SRC_VERSION" to store more accurate (source) version - this var should be
@@ -37,6 +42,7 @@ option(UMF_BUILD_BENCHMARKS "Build UMF benchmarks" OFF)
 option(UMF_BUILD_BENCHMARKS_MT "Build UMF multithreaded benchmarks" OFF)
 option(UMF_BUILD_EXAMPLES "Build UMF examples" ON)
 option(UMF_BUILD_GPU_EXAMPLES "Build UMF GPU examples" OFF)
+option(UMF_LINK_HWLOC_STATICALLY "Link UMF with HWLOC library statically" OFF)
 option(UMF_DEVELOPER_MODE "Enable developer checks, treats warnings as errors"
        OFF)
 option(UMF_FORMAT_CODE_STYLE
@@ -83,6 +89,47 @@ else()
     message(FATAL_ERROR "Unknown OS type")
 endif()
 
+if(NOT UMF_LINK_HWLOC_STATICALLY)
+    pkg_check_modules(LIBHWLOC hwloc>=2.3.0)
+    if(NOT LIBHWLOC_FOUND)
+        find_package(LIBHWLOC 2.3.0 REQUIRED hwloc)
+    endif()
+    # add PATH to DLL on Windows
+    set(DLL_PATH_LIST
+        "${DLL_PATH_LIST};PATH=path_list_append:${LIBHWLOC_LIBRARY_DIRS}/../bin"
+    )
+else()
+    if(NOT WIN32)
+        message(FATAL_ERROR "hwloc can be static linked only on Windows")
+    endif()
+    include(FetchContent)
+    FetchContent_Declare(
+        hwloc_targ
+        GIT_REPOSITORY "https://github.com/open-mpi/hwloc.git"
+        GIT_TAG hwloc-2.10.0
+        FIND_PACKAGE_ARGS)
+
+    FetchContent_GetProperties(hwloc_targ)
+    if(NOT hwloc_targ_POPULATED)
+        FetchContent_MakeAvailable(hwloc_targ)
+    endif()
+
+    set(HWLOC_ENABLE_TESTING OFF)
+    set(HWLOC_SKIP_LSTOPO ON)
+    set(HWLOC_SKIP_TOOLS ON)
+    set(hwloc_cmake ${hwloc_targ_SOURCE_DIR}/contrib/windows-cmake)
+
+    add_subdirectory(${hwloc_cmake} ${hwloc_targ_SOURCE_DIR})
+
+    set(LIBHWLOC_INCLUDE_DIRS ${hwloc_targ_SOURCE_DIR}/include)
+    set(LIBHWLOC_LIBRARY_DIRS ${hwloc_targ_SOURCE_DIR}/Release)
+    set(LIBHWLOC_LIBRARIES ${LIBHWLOC_LIBRARY_DIRS}/hwloc.lib)
+
+    message(STATUS "    LIBHWLOC_LIBRARIES = ${LIBHWLOC_LIBRARIES}")
+    message(STATUS "    LIBHWLOC_INCLUDE_DIRS = ${LIBHWLOC_INCLUDE_DIRS}")
+    message(STATUS "    LIBHWLOC_LIBRARY_DIRS = ${LIBHWLOC_LIBRARY_DIRS}")
+endif()
+
 # This build type check is not possible on Windows when CMAKE_BUILD_TYPE is not
 # set, because in this case the build type is determined after a CMake
 # configuration is done (at the build time)
@@ -130,11 +177,6 @@ foreach(option_name ${OPTIONS_REQUIRING_CXX})
     endif()
 endforeach()
 
-include(CTest)
-include(CMakePackageConfigHelpers)
-include(GNUInstallDirs)
-find_package(PkgConfig)
-
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_UMF_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
@@ -179,7 +221,8 @@ if(WINDOWS)
     add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
     # set PATH to DLLs on Windows
     set(DLL_PATH_LIST
-        "PATH=path_list_append:${PROJECT_BINARY_DIR}/bin/$<CONFIG>")
+        "${DLL_PATH_LIST};PATH=path_list_append:${PROJECT_BINARY_DIR}/bin/$<CONFIG>"
+    )
     # add path to the proxy lib DLL
     set(DLL_PATH_LIST
         "${DLL_PATH_LIST};PATH=path_list_append:${PROJECT_BINARY_DIR}/src/proxy_lib"
@@ -190,14 +233,6 @@ if(WINDOWS)
     )
 endif()
 
-pkg_check_modules(LIBHWLOC hwloc>=2.3.0)
-if(NOT LIBHWLOC_FOUND)
-    find_package(LIBHWLOC 2.3.0 REQUIRED hwloc)
-endif()
-# add PATH to DLL on Windows
-set(DLL_PATH_LIST
-    "${DLL_PATH_LIST};PATH=path_list_append:${LIBHWLOC_LIBRARY_DIRS}/../bin")
-
 pkg_check_modules(TBB tbb)
 if(NOT TBB_FOUND)
     find_package(TBB OPTIONAL_COMPONENTS tbb)

src/CMakeLists.txt

@@ -131,6 +131,10 @@ else()
         LIBS ${UMF_LIBS})
 endif()
 
+if(UMF_LINK_HWLOC_STATICALLY)
+    add_dependencies(umf hwloc)
+endif()
+
 target_link_directories(umf PRIVATE ${UMF_PRIVATE_LIBRARY_DIRS})
 
 target_compile_definitions(umf PRIVATE ${UMF_PRIVATE_COMPILE_DEFINITIONS})