Merge pull request #134 from vszakats/mingw-m64

add -m64 CFLAGS when targeting mingw64, add -m32/-m64 to LDFLAGS

lib/Makefile.m32

@@ -75,7 +75,7 @@ endif
 endif
 
 ifeq ($(ARCH),w64)
-CFLAGS  += -D_AMD64_
+CFLAGS  += -m64 -D_AMD64_
 RCFLAGS += -F pe-x86-64
 else
 CFLAGS  += -m32

src/Makefile.m32

@@ -90,10 +90,12 @@ endif
 endif
 
 ifeq ($(ARCH),w64)
-CFLAGS	+= -D_AMD64_
+CFLAGS	+= -m64 -D_AMD64_
+LDFLAGS += -m64
 RCFLAGS += -F pe-x86-64
 else
 CFLAGS	+= -m32
+LDFLAGS += -m32
 RCFLAGS += -F pe-i386
 endif
 
@@ -340,4 +342,3 @@ endif
 
 distclean vclean: clean
 	@$(call DEL, $(curl_PROGRAMS))
-