Build: Build the host-side FormCompiler before everything else.

Since we're gonna want to use this for building other apps, it should be
the very first thing we build.

DevTools/FormCompiler/Makefile

@@ -22,7 +22,7 @@ all: $(PROGRAM)
 CXXFLAGS = -std=c++17 -Wall -Wextra
 
 $(PROGRAM): $(SOURCES)
-	$(CXX) $(CXXFLAGS) -I../ -I../../ -I../../Libraries/ -o $@ $(SOURCES)
+	$(PRE_CXX) $(CXX) $(CXXFLAGS) -I../ -I../../ -I../../Libraries/ -o $@ $(SOURCES)
 
 clean:
 	rm -f $(PROGRAM)

Kernel/makeall.sh

@@ -14,6 +14,7 @@ fi
 make_cmd="make -j $MAKEJOBS"
 
 build_targets=""
+build_targets="$build_targets ../DevTools/FormCompiler"
 build_targets="$build_targets ../Libraries/LibC"
 build_targets="$build_targets ../Libraries/LibM"
 build_targets="$build_targets ../Libraries/LibCore"