remove: boost filesystem use.

crashelper/CMakeLists.txt

@@ -6,11 +6,6 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" AND CMAKE_SYSTEM_NAME MATCHES "Windows")
 message(FATAL_ERROR "Unsupported MinGW Currently.")
 endif()
 
-if(DEFINED USE_BOOST)
-message(STATUS "crashelper use boost lib.")
-include_directories(${MBOOST_INCLUDE_DIR})
-endif()
-
 set(CRASHELPER_SOURCES
 src/crashelper.cxx
 )
@@ -29,9 +24,4 @@ target_link_options(crashelper PUBLIC $<$<OR:$<STREQUAL:$<CXX_COMPILER_ID>,MSVC>
 else()
 message(FATAL_ERROR "Unsupported OS: ${CMAKE_SYSTEM_NAME}. This project only supports Linux, macOS, and Windows.")
 endif()
-
-if(DEFINED USE_BOOST)
-target_link_directories(crashelper PRIVATE ${MBOOST_LIB_DIR})
-target_link_libraries(crashelper PRIVATE ${MBOOST_LIBS})
-endif()
 target_include_directories(crashelper PUBLIC include)

crashelper/src/crashelper.cxx

@@ -1,14 +1,8 @@
 #include "crashelper.h"
+#include <filesystem>
 #include <fstream>
 #include <string>
-
-#ifdef USE_BOOST
-#include <boost/filesystem.hpp>
-namespace fs = boost::filesystem;
-#else
-#include <filesystem>
 namespace fs = std::filesystem;
-#endif
 
 namespace backward {