OK, I did eveything, added the fix (I added LIBRARY= and INCLUDE= to the makefile, under all the other bits with WHATEVER=), applied the patches, ran make, and it looked like it was going OK, until this happened:
make[1]: Entering directory `/home/tonkster/p-g-qvm-read-only'
make -C src/tools/lcc install
make[2]: Entering directory `/home/tonkster/p-g-qvm-read-only/src/tools/lcc'
gcc -O2 -Wall -fno-strict-aliasing -MMD -DTEMPDIR=\"/tmp\" -DSYSTEM=\"\" -c -Isrc -o build-mingw32-x86/etc/lcc.o etc/lcc.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -DTEMPDIR=\"/tmp\" -DSYSTEM=\"\" -c -Isrc -o build-mingw32-x86/etc/bytecode.o etc/bytecode.c
gcc -o build-mingw32-x86/q3lcc.exe build-mingw32-x86/etc/lcc.o build-mingw32-x86/etc/bytecode.o
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/cpp.o cpp/cpp.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/lex.o cpp/lex.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/nlist.o cpp/nlist.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/tokens.o cpp/tokens.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/macro.o cpp/macro.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/eval.o cpp/eval.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/include.o cpp/include.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/hideset.o cpp/hideset.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/getopt.o cpp/getopt.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Icpp -o build-mingw32-x86/cpp/unix.o cpp/unix.c
gcc -o build-mingw32-x86/q3cpp.exe build-mingw32-x86/cpp/cpp.o build-mingw32-x86/cpp/lex.o build-mingw32-x86/cpp/nlist.o build-mingw32-x86/cpp/tokens.o build-mingw32-x86/cpp/macro.o build-mingw32-x86/cpp/eval.o build-mingw32-x86/cpp/include.o build-mingw32-x86/cpp/hideset.o build-mingw32-x86/cpp/getopt.o build-mingw32-x86/cpp/unix.o
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/alloc.o src/alloc.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/bind.o src/bind.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/bytecode.o src/bytecode.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/dag.o src/dag.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Ilburg -o build-mingw32-x86/lburg/lburg.o lburg/lburg.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Ilburg -o build-mingw32-x86/lburg/gram.o lburg/gram.c
gcc -o build-mingw32-x86/lburg/lburg.exe build-mingw32-x86/lburg/lburg.o build-mingw32-x86/lburg/gram.o
build-mingw32-x86/lburg/lburg.exe src/dagcheck.md build-mingw32-x86/rcc/dagcheck.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -Wno-unused -c -Isrc -o build-mingw32-x86/rcc/dagcheck.o build-mingw32-x86/rcc/dagcheck.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/decl.o src/decl.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/enode.o src/enode.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/error.o src/error.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/event.o src/event.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/expr.o src/expr.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/gen.o src/gen.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/init.o src/init.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/inits.o src/inits.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/input.o src/input.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/lex.o src/lex.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/list.o src/list.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/main.o src/main.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/null.o src/null.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/output.o src/output.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/prof.o src/prof.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/profio.o src/profio.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/simp.o src/simp.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/stmt.o src/stmt.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/string.o src/string.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/sym.o src/sym.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/symbolic.o src/symbolic.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/trace.o src/trace.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/tree.o src/tree.c
gcc -O2 -Wall -fno-strict-aliasing -MMD -c -Isrc -o build-mingw32-x86/rcc/types.o src/types.c
gcc -o build-mingw32-x86/q3rcc.exe build-mingw32-x86/rcc/alloc.o build-mingw32-x86/rcc/bind.o build-mingw32-x86/rcc/bytecode.o build-mingw32-x86/rcc/dag.o build-mingw32-x86/rcc/dagcheck.o build-mingw32-x86/rcc/decl.o build-mingw32-x86/rcc/enode.o build-mingw32-x86/rcc/error.o build-mingw32-x86/rcc/event.o build-mingw32-x86/rcc/expr.o build-mingw32-x86/rcc/gen.o build-mingw32-x86/rcc/init.o build-mingw32-x86/rcc/inits.o build-mingw32-x86/rcc/input.o build-mingw32-x86/rcc/lex.o build-mingw32-x86/rcc/list.o build-mingw32-x86/rcc/main.o build-mingw32-x86/rcc/null.o build-mingw32-x86/rcc/output.o build-mingw32-x86/rcc/prof.o build-mingw32-x86/rcc/profio.o build-mingw32-x86/rcc/simp.o build-mingw32-x86/rcc/stmt.o build-mingw32-x86/rcc/string.o build-mingw32-x86/rcc/sym.o build-mingw32-x86/rcc/symbolic.o build-mingw32-x86/rcc/trace.o build-mingw32-x86/rcc/tree.o build-mingw32-x86/rcc/types.o
install -s -m 0755 build-mingw32-x86/q3lcc.exe ../
install -s -m 0755 build-mingw32-x86/q3cpp.exe ../
install -s -m 0755 build-mingw32-x86/q3rcc.exe ../
make[2]: Leaving directory `/home/tonkster/p-g-qvm-read-only/src/tools/lcc'
make -C src/tools/asm install
make[2]: Entering directory `/home/tonkster/p-g-qvm-read-only/src/tools/asm'
gcc -O2 -Wall -Werror -fno-strict-aliasing -o q3asm q3asm.c cmdlib.c
install -s -m 0755 q3asm.exe ../
install: strip failed
make[2]: *** [install] Error 1
make[2]: Leaving directory `/home/tonkster/p-g-qvm-read-only/src/tools/asm'
make[1]: *** [tools] Error 2
make[1]: Leaving directory `/home/tonkster/p-g-qvm-read-only'
make: *** [release] Error 2
At the start of the makefile it says that I need GNU Make? I'm stuck now...