LTO for esp32dev_8M

platformio.ini

@@ -424,7 +424,9 @@ board = esp32dev
 platform = ${esp32_idf_V4.platform}
 platform_packages = ${esp32_idf_V4.platform_packages}
 build_unflags = ${common.build_unflags}
+  -fno-lto
 build_flags = ${common.build_flags} ${esp32_idf_V4.build_flags} -D WLED_RELEASE_NAME=ESP32_8M #-D WLED_DISABLE_BROWNOUT_DET
+  -g3 -ggdb -flto=auto ;; enable size optimization by the linker - comment out when debugging. ("=4" just means "use 4 cores in parallel")
   ${esp32.AR_build_flags}
 lib_deps = ${esp32_idf_V4.lib_deps}
   ${esp32.AR_lib_deps}