diff --git a/applications/utilities/postProcessing/dataConversion/foamToTecplot360/tecio/tecsrc/Make/tecioOptions b/applications/utilities/postProcessing/dataConversion/foamToTecplot360/tecio/tecsrc/Make/tecioOptions
index cb1c12e73..246c6d1b3 100644
--- a/applications/utilities/postProcessing/dataConversion/foamToTecplot360/tecio/tecsrc/Make/tecioOptions
+++ b/applications/utilities/postProcessing/dataConversion/foamToTecplot360/tecio/tecsrc/Make/tecioOptions
@@ -20,6 +20,10 @@
 
     TECIO_FLAGS = -DMAKEARCHIVE -DLINUX -DLINUX64 -DUSEENUM -DTHREED -U_WIN32 -DENGINE
 
+#elif defined(mingw)
+
+    TECIO_FLAGS = -DMAKEARCHIVE -DMSWIN -DUSEENUM -DTHREED -U_WIN32 -DENGINE
+
 #else
 
 #error "architecture not supported for compiling tecio."
diff --git a/src/dbns/Make/options b/src/dbns/Make/options
index b8663b22b..c15372eed 100644
--- a/src/dbns/Make/options
+++ b/src/dbns/Make/options
@@ -1,5 +1,6 @@
-ifeq ($(WM_ARCH_BASE), mingw)
-EXE_INC = -g \
+#if defined(mingw)
+
+EXE_INC = \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/meshTools/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
@@ -9,8 +10,10 @@ EXE_INC = -g \
 LIB_LIBS = \
     -lfiniteVolume \
     -L$(PARMGRIDGEN_LIB_DIR) -lIMlib -lmgrid
-else
-EXE_INC = -g \
+
+#else
+
+EXE_INC = \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(LIB_SRC)/meshTools/lnInclude \
     -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
@@ -21,4 +24,5 @@ EXE_INC = -g \
 LIB_LIBS = \
     -lfiniteVolume \
     -L$(PARMGRIDGEN_LIB_DIR) -lIMlib -lMGridGen
-endif
\ No newline at end of file
+
+#endif
\ No newline at end of file
diff --git a/src/decompositionMethods/scotchDecomp/Make/options b/src/decompositionMethods/scotchDecomp/Make/options
index 2c01296c2..bb3091e12 100644
--- a/src/decompositionMethods/scotchDecomp/Make/options
+++ b/src/decompositionMethods/scotchDecomp/Make/options
@@ -2,22 +2,28 @@ EXE_INC = \
     -I$(SCOTCH_INCLUDE_DIR) \
     -I../decompositionMethods/lnInclude
 
-ifeq ($(WM_ARCH_BASE), darwin)
+#if defined(darwinIntel)
+
 /* No librt for Mac OS X */
 LIB_LIBS = \
     -lfoam \
     -L$(SCOTCH_LIB_DIR) -lscotch \
     -L$(SCOTCH_LIB_DIR) -lscotcherrexit
-else ifeq ($(WM_ARCH_BASE), mingw)
+
+#elif defined(mingw)
+
 /* No librt for MinGW */
 LIB_LIBS = \
     -ldecompositionMethods \
     -L$(SCOTCH_LIB_DIR) -lscotch \
     -L$(SCOTCH_LIB_DIR) -lscotcherrexit \
     -L$(OPENMPI_DIR)/lib -lmpi
-else
+
+#else
+
 LIB_LIBS = \
     -L$(SCOTCH_LIB_DIR) -lscotch \
     -L$(SCOTCH_LIB_DIR) -lscotcherrexit \
     -lrt
-endif
+
+#endif
diff --git a/src/foam/Make/options b/src/foam/Make/options
index 73f9f3b44..d15b24680 100644
--- a/src/foam/Make/options
+++ b/src/foam/Make/options
@@ -3,7 +3,8 @@ include $(RULES)/mplib$(WM_MPLIB)
 EXE_INC = $(PFLAGS) $(PINC)\
     -I$(WM_THIRD_PARTY_DIR)/zlib-1.2.3
 
-ifeq ($(WM_ARCH_BASE), mingw)
+#if defined(mingw)
+
 LIB_LIBS = $(PLIBS)\
     $(FOAM_LIBBIN)/libOSspecific.o \
     -lz \
@@ -11,11 +12,14 @@ LIB_LIBS = $(PLIBS)\
     -ldl \
     -lpsapi \
     -lpthread
-else
+
+#else
+
 LIB_LIBS = $(PLIBS)\
     $(FOAM_LIBBIN)/libOSspecific.o \
     -lz
-endif
+
+#endif
 
 $(OBJECTS_DIR)/global.o: FORCE
 
diff --git a/src/fvAgglomerationMethods/MGridGenGamgAgglomeration/Make/options b/src/fvAgglomerationMethods/MGridGenGamgAgglomeration/Make/options
index 13a35803e..abee7e109 100644
--- a/src/fvAgglomerationMethods/MGridGenGamgAgglomeration/Make/options
+++ b/src/fvAgglomerationMethods/MGridGenGamgAgglomeration/Make/options
@@ -1,11 +1,15 @@
 ParMGridGen = $(WM_THIRD_PARTY_DIR)/packages/ParMGridGen-1.0
 
 TYPE_REAL=
+
 #if defined(WM_SP)
+
 TYPE_REAL=-DTYPE_REAL
+
 #endif
 
-ifeq ($(WM_ARCH_BASE), mingw)
+#if defined(mingw)
+
 EXE_INC = \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(PARMGRIDGEN_INCLUDE_DIR) \
@@ -14,7 +18,8 @@ EXE_INC = \
 LIB_LIBS = \
     -lfiniteVolume \
     -L$(PARMGRIDGEN_LIB_DIR) -lmgrid
-else
+#else
+
 EXE_INC = \
     -I$(LIB_SRC)/finiteVolume/lnInclude \
     -I$(PARMGRIDGEN_INCLUDE_DIR)/Lib    \
@@ -23,4 +28,5 @@ EXE_INC = \
 
 LIB_LIBS = \
     -L$(PARMGRIDGEN_LIB_DIR) -lMGridGen
-endif
+
+#endif
diff --git a/wmake/rules/mingw64/c b/wmake/rules/mingw64/c
new file mode 100644
index 000000000..a8e588f66
--- /dev/null
+++ b/wmake/rules/mingw64/c
@@ -0,0 +1,16 @@
+.SUFFIXES: .c .h
+
+cWARN        = -Wall
+
+cc          = gcc
+
+include $(RULES)/c$(WM_COMPILE_OPTION)
+
+cFLAGS      = $(GFLAGS) $(cWARN) $(cOPT) $(cDBUG) $(LIB_HEADER_DIRS) -fPIC -Dmingw
+
+ctoo        = $(WM_SCHEDULER) $(cc) $(cFLAGS) -c $$SOURCE -o $@
+
+LINK_LIBS   = $(cDBUG)
+
+LINKLIBSO   = $(cc) -shared
+LINKEXE     = $(cc) -Xlinker --add-needed -Xlinker -z -Xlinker nodefs