Win32: link alure dynamically

I couldn't figure out a way to link it statically without it either
crashing at runtime or failing to link. I think the problem is some
binary incompatibility between libstdc++ and alure. Compiling alure on
my own didn't help either.

Author: DankRank

Makefile

@@ -16,8 +16,7 @@ ifdef mingw
  CROSS   := i686-w64-mingw32-
  CFLAGS  += -Iwin32/include -Iwin32/include/AL
  LDFLAGS += -mwindows -static-libgcc -static-libstdc++
- CFLAGS  += -DALURE_STATIC_LIBRARY
- LIBS    += -Lwin32/lib -lALURE32-static -lOpenAL32 
+ LIBS    += -Lwin32/lib -lALURE32 -lOpenAL32
  SRC     += scan-windows.c
 else 
  OS := $(shell uname)