CMake: Use -g1 for Release builds

CMakeLists.txt

@@ -65,12 +65,8 @@ if(MSVC)
   set(CMAKE_EXE_LINKER_FLAGS_DEVEL "${CMAKE_EXE_LINKER_FLAGS_DEVEL} /OPT:REF /OPT:ICF")
 else()
   # Force debug symbols for Linux builds.
-  if (NOT CMAKE_C_FLAGS_RELEASE MATCHES "\\s*-g\\s*")
-    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g")
-  endif()
-  if (NOT CMAKE_CXX_FLAGS_RELEASE MATCHES "\\s*-g\\s*")
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -g")
-  endif()
+  add_debug_symbol_flag(CMAKE_C_FLAGS_RELEASE)
+  add_debug_symbol_flag(CMAKE_CXX_FLAGS_RELEASE)
 endif()
 
 # Warning disables.

CMakeModules/DuckStationUtils.cmake

@@ -262,6 +262,15 @@ function(install_imported_dep_library name)
   install(FILES "${LOCATION}" RENAME "${SONAME}" DESTINATION "${CMAKE_INSTALL_LIBDIR}")
 endfunction()
 
+function(add_debug_symbol_flag var)
+  # CMake's regex engine is missing so many features...
+  set(value "${${var}}")
+  if (NOT " ${value} " MATCHES " -g[1-3]? ")
+    message(STATUS "Adding -g1 to ${var}.")
+    set(${var} "${value} -g1" PARENT_SCOPE)
+  endif()
+endfunction()
+
 function(check_cpp20_feature MACRO MINIMUM_VALUE)
   set(CACHE_VAR "CHECK_CPP20_FEATURE_${MACRO}")
   if(NOT DEFINED ${CACHE_VAR})