Build: Make building on Windows easier.

.github/workflows/build.yaml

@@ -144,7 +144,7 @@ jobs:
         run: |
           export MSYS=winsymlinks:native
           git clone --depth=1 --recursive file://`pwd` work; cd work
-          make LFLAGS="-lmsys-2.0 -lws2_32" -j`nproc`
+          make -j`nproc`
           mkdir natmap
           cp bin/natmap* natmap
           wget -P natmap https://github.com/heiher/msys2/releases/latest/download/msys-2.0.dll

Makefile

@@ -33,6 +33,10 @@ LINKMSG="\e[1;34mLINK\e[0m  \e[1;32m%s\e[0m\n"
 STRIPMSG="\e[1;34mSTRIP\e[0m \e[1;32m%s\e[0m\n"
 CLEANMSG="\e[1;34mCLEAN\e[0m %s\n"
 
+ifeq ($(MSYSTEM),MSYS)
+	LDFLAGS+=-lmsys-2.0 -lws2_32
+endif
+
 ENABLE_DEBUG :=
 ifeq ($(ENABLE_DEBUG),1)
 	CCFLAGS+=-g -O0 -DENABLE_DEBUG

README.md

@@ -33,7 +33,7 @@ ndk-build
 export MSYS=winsymlinks:native
 git clone --recursive https://github.com/heiher/natmap.git
 cd natmap
-make LFLAGS="-lmsys-2.0 -lws2_32"
+make
 ```
 
 ## How to Use