adapted Makefile for cross compiling

git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1696 ac1d8469-bf42-47a9-8791-bf33cf982152

Makefile.include

+AR = ar
 CPP = g++
 
 CPPFLAGS = -Wall
@@ -10,6 +11,7 @@ endif
 
 ifeq ($(CROSS_WIN32), yes)
 	CPP = i586-mingw32msvc-g++
+	AR = i586-mingw32msvc-ar
 	# Detection of uninitialized variables is buggy in MinGW and generates spurious warnings
 	CPPFLAGS += -Wno-uninitialized
 endif

macro/Makefile

@@ -3,7 +3,7 @@ include ../Makefile.include
 OBJ = MacroFlex.o MacroBison.o MacroDriver.o
 
 libmacro.a: $(OBJ)
-	ar crs libmacro.a $(OBJ)
+	$(AR) crs libmacro.a $(OBJ)
 
 -include $(OBJ:.o=.P)