Update options and makefile

Add option to statically link libc and libc++ to allow the corresponding executable to run on older systems

ProjectOptions.cmake

@@ -28,7 +28,7 @@ macro(psim_setup_options)
   psim_supports_sanitizers()
 
   if(ENABLE_DEVELOPER_MODE)
-    option(psim_ENABLE_IPO "Enable IPO/LTO" ON)
+    option(psim_ENABLE_IPO "Enable IPO/LTO" OFF)
     option(psim_WARNINGS_AS_ERRORS "Treat Warnings As Errors" ON)
     option(psim_ENABLE_DOXYGEN "Build documentation with Doxygen" OFF)
     option(psim_ENABLE_USER_LINKER "Enable user-selected linker" OFF)
@@ -42,8 +42,9 @@ macro(psim_setup_options)
     option(psim_ENABLE_CPPCHECK "Enable cpp-check analysis" ON)
     option(psim_ENABLE_PCH "Enable precompiled headers" OFF)
     option(psim_ENABLE_CACHE "Enable ccache" ON)
+    option(psim_STATIC_LINK_LIBC "Statically link standard libraries" OFF)
   else()
-    option(psim_ENABLE_IPO "Enable IPO/LTO" OFF)
+    option(psim_ENABLE_IPO "Enable IPO/LTO" ON)
     option(psim_WARNINGS_AS_ERRORS "Treat Warnings As Errors" OFF)
     option(psim_ENABLE_DOXYGEN "Build documentation with Doxygen" OFF)
     option(psim_ENABLE_USER_LINKER "Enable user-selected linker" OFF)
@@ -57,6 +58,7 @@ macro(psim_setup_options)
     option(psim_ENABLE_CPPCHECK "Enable cpp-check analysis" OFF)
     option(psim_ENABLE_PCH "Enable precompiled headers" OFF)
     option(psim_ENABLE_CACHE "Enable ccache" OFF)
+    option(psim_STATIC_LINK_LIBC "Statically link standard libraries" OFF)
   endif()
 
   mark_as_advanced(FORCE ENABLE_DEVELOPER_MODE)
@@ -97,6 +99,16 @@ endmacro()
 macro(psim_local_options)
   if(PROJECT_IS_TOP_LEVEL)
     include(cmake/StandardProjectSettings.cmake)
+    # Statically link the standard libraries to allow the executable to run
+    # on servers with older software
+    if (psim_STATIC_LINK_LIBC)
+      set(CMAKE_EXE_LINKER_FLAGS "-static -static-libgcc -static-libstdc++")
+
+      if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=skylake-avx512")
+      endif()
+
+    endif()
   endif()
 
   add_library(psim_warnings INTERFACE)

makefile

@@ -14,6 +14,10 @@ debug:
 	cmake -S ./ -B ./build -G "Ninja Multi-Config" -DENABLE_DEVELOPER_MODE:BOOL=ON -DCMAKE_BUILD_TYPE:STRING=Debug
 	cmake --build ./build --config Debug
 
+link_libc:
+	cmake -S ./ -B ./build -G "Ninja Multi-Config" -DCMAKE_BUILD_TYPE:STRING=Release -Dpsim_STATIC_LINK_LIBC=ON
+	cmake --build ./build --config Release
+
 format:
 ifeq ($(OS), Windows_NT)
 	pwsh -c '$$files=(git ls-files --exclude-standard); foreach ($$file in $$files) { if ((get-item $$file).Extension -in ".cpp", ".hpp", ".c", ".cc", ".cxx", ".hxx", ".ixx") { clang-format -i -style=file $$file } }'

psim/CMakeLists.txt

@@ -1,3 +1,9 @@
+set(CMAKE_EXE_LINKER_FLAGS "-static -static-libgcc -static-libstdc++")
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=skylake-avx512")
+endif()
+
 file(GLOB_RECURSE PSIM_SOURCES
         "${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp" # Header files
         "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp" # Source files