remove "fxsdk build" command dependency

CMakeLists.txt

@@ -1,6 +1,3 @@
-# Configure with [fxsdk build-fx] or [fxsdk build-cg], which provide the
-# toolchain file and module path of the fxSDK
-
 cmake_minimum_required(VERSION 3.18)
 # replace this with your project's name
 project(unshell C ASM)

makefile

@@ -1,14 +1,24 @@
-all:
-	fxsdk build-cg
+FXSDK_PREFIX = ${HOME}/.local
+
+all: configure build send
+rebuild: clean build
+tidy: format
+
+configure:
+	cmake \
+		-B build-cg \
+		-DCMAKE_MODULE_PATH=${FXSDK_PREFIX}/lib/cmake/fxsdk \
+		-DCMAKE_TOOLCHAIN_FILE=${FXSDK_PREFIX}/lib/cmake/fxsdk/FXCG50.cmake \
+		-DFXSDK_CMAKE_MODULE_PATH=${FXSDK_PREFIX}/lib/cmake/fxsdk
+
+build:
+	cmake --build build-cg
+
+send:
 	fxlink -s -w60 -f 'mass_storage;series_cg' *.g3a
 
 clean:
 	rm -rf *.g1a *.g3a build/ build-fx/ build-cg/
 
 format:
-	find src/ -name *.[c,h] -exec clang-format --verbose -i {} \;
-
-# aliases
-build: all
-rebuild: clean build
-tidy: format
+	find src/ -name *.[c,h] -exec clang-format --verbose -i {} \;