Silence all Visual Studio warnings when building Minisat

Author: tautschnig

src/solvers/Makefile

@@ -193,6 +193,12 @@ SRC = $(BOOLEFORCE_SRC) \
 
 include ../common
 
+ifneq ($(MINISAT2),)
+ifeq ($(BUILD_ENV_),MSVC)
+  CP_CXXFLAGS += /w
+endif
+endif
+
 INCLUDES += -I .. \
   $(CHAFF_INCLUDE) $(BOOLEFORCE_INCLUDE) $(MINISAT_INCLUDE) $(MINISAT2_INCLUDE) \
   $(IPASIR_INCLUDE) \