Avoid using {runtime.platform.path} and {compiler.*.extra_flags}

platform.txt

@@ -52,14 +52,14 @@ compiler.define=-DARDUINO=
 build.extra_flags=
 build.lfclk_flags=
 
-nrf.sdk.path={runtime.platform.path}/cores/nRF5/SDK
+nrf.sdk.path={build.core.path}/SDK
 
 compiler.nrf.flags=-DNRF5 "-I{nrf.sdk.path}/components/toolchain/" "-I{nrf.sdk.path}/components/toolchain/CMSIS/Include" "-I{nrf.sdk.path}/components/toolchain/gcc/" "-I{nrf.sdk.path}/components/device/" "-I{nrf.sdk.path}/components/drivers_nrf/delay/" "-I{nrf.sdk.path}/components/softdevice/{softdevice}/headers/"
 
 # These can be overridden in platform.local.txt
-compiler.c.extra_flags={compiler.nrf.flags}
+compiler.c.extra_flags=
 compiler.c.elf.extra_flags=
-compiler.cpp.extra_flags={compiler.nrf.flags}
+compiler.cpp.extra_flags=
 compiler.S.extra_flags=
 compiler.ar.extra_flags=
 compiler.elf2bin.extra_flags=
@@ -70,10 +70,10 @@ compiler.elf2hex.extra_flags=
 # ----------------
 
 ## Compile c files
-recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.c.extra_flags} {build.extra_flags} {build.lfclk_flags} {includes} "{source_file}" -o "{object_file}"
+recipe.c.o.pattern="{compiler.path}{compiler.c.cmd}" {compiler.c.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.c.extra_flags} {build.extra_flags} {compiler.nrf.flags} {build.lfclk_flags} {includes} "{source_file}" -o "{object_file}"
 
 ## Compile c++ files
-recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.cpp.extra_flags} {build.extra_flags} {build.lfclk_flags} {includes} "{source_file}" -o "{object_file}"
+recipe.cpp.o.pattern="{compiler.path}{compiler.cpp.cmd}" {compiler.cpp.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.cpp.extra_flags} {build.extra_flags} {compiler.nrf.flags} {build.lfclk_flags} {includes} "{source_file}" -o "{object_file}"
 
 ## Compile S files
 recipe.S.o.pattern="{compiler.path}{compiler.S.cmd}" {compiler.S.flags} -DF_CPU={build.f_cpu} -DARDUINO={runtime.ide.version} -DARDUINO_{build.board} -DARDUINO_ARCH_{build.arch} {compiler.S.extra_flags} {build.extra_flags} {build.lfclk_flags} {includes} "{source_file}" -o "{object_file}"