diff --git a/src/makefile.linux-mingw b/src/makefile.linux-mingw
index 694cacd6322..7719cd2637a 100644
--- a/src/makefile.linux-mingw
+++ b/src/makefile.linux-mingw
@@ -36,9 +36,9 @@ LIBS= \
 
 DEFS=-D_MT -DWIN32 -D_WINDOWS -DBOOST_THREAD_USE_LIB -DBOOST_SPIRIT_THREADSAFE
 DEBUGFLAGS=-g
-CFLAGS=-O2 -w -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter $(DEBUGFLAGS) $(DEFS) $(INCLUDEPATHS)
+xCXXFLAGS=-O2 -w -Wall -Wextra -Wformat -Wformat-security -Wno-unused-parameter $(DEBUGFLAGS) $(DEFS) $(INCLUDEPATHS) $(CXXFLAGS)
 # enable: ASLR, DEP and large address aware
-LDFLAGS=-Wl,--dynamicbase -Wl,--nxcompat -Wl,--large-address-aware
+xLDFLAGS=-Wl,--dynamicbase -Wl,--nxcompat -Wl,--large-address-aware $(LDFLAGS)
 
 TESTDEFS = -DTEST_DATA_DIR=$(abspath test/data)
 
@@ -98,7 +98,7 @@ all: bitcoind.exe
 DEFS += -I"$(CURDIR)/leveldb/include"
 DEFS += -I"$(CURDIR)/leveldb/helpers"
 leveldb/libleveldb.a:
-	@echo "Building LevelDB ..." && cd leveldb && TARGET_OS=OS_WINDOWS_CROSSCOMPILE $(MAKE) CC=$(CC) CXX=$(CXX) OPT="$(CFLAGS)" libleveldb.a libmemenv.a && i586-mingw32msvc-ranlib libleveldb.a && i586-mingw32msvc-ranlib libmemenv.a && cd ..
+	@echo "Building LevelDB ..." && cd leveldb && TARGET_OS=OS_WINDOWS_CROSSCOMPILE $(MAKE) CC=$(CC) CXX=$(CXX) OPT="$(xCXXFLAGS)" libleveldb.a libmemenv.a && i586-mingw32msvc-ranlib libleveldb.a && i586-mingw32msvc-ranlib libmemenv.a && cd ..
 
 obj/build.h: FORCE
 	/bin/sh ../share/genbuild.sh obj/build.h
@@ -106,18 +106,18 @@ version.cpp: obj/build.h
 DEFS += -DHAVE_BUILD_INFO
 
 obj/%.o: %.cpp $(HEADERS)
-	$(CXX) -c $(CFLAGS) -o $@ $<
+	$(CXX) -c $(xCXXFLAGS) -o $@ $<
 
 bitcoind.exe: $(OBJS:obj/%=obj/%)
-	$(CXX) $(CFLAGS) $(LDFLAGS) -o $@ $(LIBPATHS) $^ $(LIBS)
+	$(CXX) $(xCXXFLAGS) $(xLDFLAGS) -o $@ $(LIBPATHS) $^ $(LIBS)
 
 TESTOBJS := $(patsubst test/%.cpp,obj-test/%.o,$(wildcard test/*.cpp))
 
 obj-test/%.o: test/%.cpp $(HEADERS)
-	$(CXX) -c $(TESTDEFS) $(CFLAGS) -o $@ $<
+	$(CXX) -c $(TESTDEFS) $(xCXXFLAGS) -o $@ $<
 
 test_bitcoin.exe: $(TESTOBJS) $(filter-out obj/init.o,$(OBJS:obj/%=obj/%))
-	$(CXX) $(CFLAGS) $(LDFLAGS) -o $@ $(LIBPATHS) $^ -lboost_unit_test_framework-mt-s $(LIBS)
+	$(CXX) $(xCXXFLAGS) $(xLDFLAGS) -o $@ $(LIBPATHS) $^ -lboost_unit_test_framework-mt-s $(LIBS)
 
 
 clean:
diff --git a/src/makefile.unix b/src/makefile.unix
index 4401cf0d566..081edaf63ef 100644
--- a/src/makefile.unix
+++ b/src/makefile.unix
@@ -36,6 +36,10 @@ LIBS += \
    -l ssl \
    -l crypto
 
+TESTLIBS += \
+ -Wl,-B$(LMODE) \
+   -l boost_unit_test_framework$(BOOST_LIB_SUFFIX)
+
 ifndef USE_UPNP
 	override USE_UPNP = -
 endif
@@ -178,7 +182,7 @@ obj-test/%.o: test/%.cpp
 	  rm -f $(@:%.o=%.d)
 
 test_bitcoin: $(TESTOBJS) $(filter-out obj/init.o,$(OBJS:obj/%=obj/%))
-	$(LINK) $(xCXXFLAGS) -o $@ $(LIBPATHS) $^ -Wl,-B$(LMODE) -lboost_unit_test_framework $(xLDFLAGS) $(LIBS)
+	$(LINK) $(xCXXFLAGS) -o $@ $(LIBPATHS) $^ $(TESTLIBS) $(xLDFLAGS) $(LIBS)
 
 clean:
 	-rm -f bitcoind test_bitcoin