--- ./arch/configure.defaults	2020-04-24 01:08:37.000000000 +0800
+++ ../WRF-4.2.2/arch/configure.defaults	2021-01-16 01:21:58.000000000 +0800
@@ -44,7 +44,7 @@
 CC_TOOLS        =      cc 
 
 ###########################################################
-#ARCH    Linux i486 i586 i686, gfortran compiler with gcc #serial smpar dmpar dm+sm
+#ARCH    Linux i486 i586 i686 armv7l aarch64, gfortran compiler with gcc #serial smpar dmpar dm+sm
 #
 DESCRIPTION     =       GNU ($SFC/$SCC)
 DMPARALLEL      =       # 1
@@ -73,8 +73,9 @@
 FORMAT_FIXED    =       -ffixed-form
 FORMAT_FREE     =       -ffree-form -ffree-line-length-none
 FCSUFFIX        =       
+FCCOMPAT        =       
 BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
-FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO) $(FCCOMPAT)
 FCBASEOPTS      =       $(FCBASEOPTS_NO_G) $(FCDEBUG)
 MODULE_SRCH_FLAG =
 TRADFLAG        =      CONFIGURE_TRADFLAG
@@ -785,8 +786,9 @@
 FORMAT_FIXED    =       -ffixed-form
 FORMAT_FREE     =       -ffree-form -ffree-line-length-none
 FCSUFFIX        =       
+FCCOMPAT        =       
 BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
-FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO) $(FCCOMPAT)
 FCBASEOPTS      =       $(FCBASEOPTS_NO_G) $(FCDEBUG)
 MODULE_SRCH_FLAG =     
 TRADFLAG        =      CONFIGURE_TRADFLAG
@@ -1006,8 +1008,9 @@
 FORMAT_FIXED    =       -ffixed-form
 FORMAT_FREE     =       -ffree-form -ffree-line-length-none
 FCSUFFIX        =       
+FCCOMPAT        =       
 BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
-FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO) $(FCCOMPAT)
 FCBASEOPTS      =       $(FCBASEOPTS_NO_G) $(FCDEBUG)
 MODULE_SRCH_FLAG =
 TRADFLAG        =      CONFIGURE_TRADFLAG
@@ -1049,8 +1052,9 @@
 FORMAT_FIXED    =       -ffixed-form
 FORMAT_FREE     =       -ffree-form -ffree-line-length-none
 FCSUFFIX        =       
+FCCOMPAT        =       
 BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
-FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO) $(FCCOMPAT)
 FCBASEOPTS      =       $(FCBASEOPTS_NO_G) $(FCDEBUG)
 MODULE_SRCH_FLAG =
 TRADFLAG        =      CONFIGURE_TRADFLAG
@@ -1772,8 +1776,9 @@
 FORMAT_FIXED    =       -ffixed-form
 FORMAT_FREE     =       -ffree-form -ffree-line-length-none
 FCSUFFIX        =       
+FCCOMPAT        =       
 BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
-FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO) $(FCCOMPAT)
 FCBASEOPTS      =       $(FCBASEOPTS_NO_G) $(FCDEBUG)
 MODULE_SRCH_FLAG =
 TRADFLAG        =      CONFIGURE_TRADFLAG
@@ -1829,7 +1834,7 @@
 CC_TOOLS        =      $(SCC) 
 
 ###########################################################
-#ARCH    Linux x86_64 ppc64le i486 i586 i686 #serial smpar dmpar dm+sm
+#ARCH    Linux x86_64 ppc64le i486 i586 i686, ifort compiler with icc #serial smpar dmpar dm+sm
 #
 DESCRIPTION     =       INTEL ($SFC/$SCC): HSW/BDW
 DMPARALLEL      =       # 1
@@ -1873,7 +1878,7 @@
 CC_TOOLS        =      $(SCC) 
 
 ###########################################################
-#ARCH    Linux KNL x86_64 ppc64le i486 i586 i686 #serial smpar dmpar dm+sm
+#ARCH    Linux KNL x86_64 ppc64le i486 i586 i686, ifort compiler with icc #serial smpar dmpar dm+sm
 #
 DESCRIPTION     =       INTEL ($SFC/$SCC): KNL MIC
 DMPARALLEL      =       # 1
@@ -1946,8 +1951,9 @@
 FORMAT_FIXED    =       -ffixed-form
 FORMAT_FREE     =       -ffree-form -ffree-line-length-none
 FCSUFFIX        =       
+FCCOMPAT        =       
 BYTESWAPIO      =       -fconvert=big-endian -frecord-marker=4
-FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO)
+FCBASEOPTS_NO_G =       -w $(FORMAT_FREE) $(BYTESWAPIO) $(FCCOMPAT)
 FCBASEOPTS      =       $(FCBASEOPTS_NO_G) $(FCDEBUG)
 MODULE_SRCH_FLAG =     
 TRADFLAG        =      -traditional