added LIEF library

.gitmodules

@@ -6,3 +6,7 @@
 	path = keystone
 	url = https://github.com/keystone-engine/keystone
 	branch = master
+[submodule "LIEF"]
+	path = LIEF
+	url = https://github.com/lief-project/LIEF
+	branch = master

CMakeLists.txt

@@ -23,10 +23,23 @@ ExternalProject_Add(keystone-engine SOURCE_DIR ${KEYSTONE_DIR} INSTALL_COMMAND e
 add_library(keystone STATIC IMPORTED)
 set_target_properties(keystone PROPERTIES IMPORTED_LOCATION ${KEYSTONE_IMPORT_DIR}/libkeystone.a)
 
+set(LIEF_DIR "${PROJECT_SOURCE_DIR}/LIEF")
+set(LIEF_INC "${LIEF_DIR}/include" "${PROJECT_BINARY_DIR}/lief-project-prefix/src/lief-project-build/include")
+set(LIEF_IMPORT_DIR "${PROJECT_BINARY_DIR}/lief-project-prefix/src/lief-project-build")
+set(LIEF_CMAKE_ARGS -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE} -DLIEF_USE_CCACHE=OFF -DLIEF_ENABLE_JSON=OFF -DLIEF_FROZEN_ENABLED=OFF -DLIEF_MACHO=OFF -DLIEF_OAT=OFF -DLIEF_DEX=OFF -DLIEF_VDEX=OFF -DLIEF_ART=OFF -DLIEF_EXTERNAL_LEAF=OFF -DLIEF_EXTERNAL_SPAN_DIR=OFF -DLIEF_FUZZING=OFF -DLIEF_PROFILING=OFF -DLIEF_COVERAGE=OFF -DLIEF_EXAMPLES=OFF -DLIEF_TESTS=OFF -DLIEF_DOC=OFF)
+if(${CMAKE_SYSTEM_NAME} MATCHES Windows)
+        set(LIEF_CMAKE_ARGS ${LIEF_CMAKE_ARGS} -DLIEF_ELF=OFF)
+else()
+        set(LIEF_CMAKE_ARGS ${LIEF_CMAKE_ARGS} -DLIEF_PE=OFF)
+endif()
+ExternalProject_Add(lief-project SOURCE_DIR ${LIEF_DIR} INSTALL_COMMAND echo CMAKE_ARGS ${LIEF_CMAKE_ARGS})
+add_library(LIEF STATIC IMPORTED)
+set_target_properties(LIEF PROPERTIES IMPORTED_LOCATION ${LIEF_IMPORT_DIR}/libLIEF.a)
+
 set(LIBMEM_DIR "${PROJECT_SOURCE_DIR}/libmem")
 set(LIBMEM_INC "${LIBMEM_DIR}/include")
 file(GLOB_RECURSE LIBMEM_SRC "${LIBMEM_DIR}/src/*.c")
-set(LIBMEM_DEPS capstone keystone stdc++ m)
+set(LIBMEM_DEPS capstone keystone LIEF stdc++ m)
 
 if(NOT MSVC)
 	add_compile_options(-Wall -Wextra -Wpedantic)
@@ -41,10 +54,10 @@ else()
 	add_library(libmem SHARED ${LIBMEM_SRC})
 endif()
 
-include_directories(${PROJECT_SOURCE_DIR} ${LIBMEM_INC} ${CAPSTONE_INC} ${KEYSTONE_INC})
+include_directories(${PROJECT_SOURCE_DIR} ${LIBMEM_INC} ${CAPSTONE_INC} ${KEYSTONE_INC} ${LIEF_INC})
 set_target_properties(libmem PROPERTIES PREFIX "")
 target_compile_definitions(libmem PUBLIC LM_EXPORT)
-add_dependencies(libmem capstone-engine keystone-engine)
+add_dependencies(libmem capstone-engine keystone-engine lief-project)
 
 if (LIBMEM_BUILD_TESTS)
 	set(TESTS_DIR "${PROJECT_SOURCE_DIR}/tests")