Add debug symbols in release build (#416)

Author: NikolaosPapailiou

src/CMakeLists.txt

@@ -123,12 +123,12 @@ if (NOT $ENV{CIBUILDWHEEL} EQUAL 1 AND NOT $ENV{CONDA_BUILD} EQUAL 1)
       add_compile_definitions("$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
   elseif (CMAKE_OSX_ARCHITECTURES STREQUAL arm64 OR CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64" OR CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
       set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g -fno-elide-constructors ${FCONCEPTS_DIAGNOSTICS_DEPTH} " CACHE STRING "" FORCE)
-      set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -DNDEBUG " CACHE STRING "" FORCE)
+      set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -g -DNDEBUG " CACHE STRING "" FORCE)
       set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-Ofast -g -UNDEBUG" CACHE STRING "" FORCE)
       set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG " CACHE STRING "" FORCE)
   else()
       set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g -fno-elide-constructors ${FCONCEPTS_DIAGNOSTICS_DEPTH} " CACHE STRING "" FORCE)
-      set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -march=native -DNDEBUG " CACHE STRING "" FORCE)
+      set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -g -march=native -DNDEBUG " CACHE STRING "" FORCE)
       set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-Ofast -g -march=native -UNDEBUG" CACHE STRING "" FORCE)
       set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -march=native -DNDEBUG " CACHE STRING "" FORCE)
   endif()