diff --git a/make.inc.icc b/make.inc.icc
index d09add0..4e26423 100644
--- a/make.inc.icc
+++ b/make.inc.icc
@@ -1,7 +1,7 @@
 CC=icc
 CXX=icpc
 FC=ifort
-FFLAGS= -fPIC -O3 -march=native -funroll-loops -mkl 
+FFLAGS= -fPIC -O3 -march=native -funroll-loops -mkl -w 
 LIBS=-lm 
 CLIBS = -lm -ldl -lifcore
 
diff --git a/make.inc.macos.gnu b/make.inc.macos.gnu
index 189b242..5051a7a 100644
--- a/make.inc.macos.gnu
+++ b/make.inc.macos.gnu
@@ -1,6 +1,6 @@
 # makefile overrides
 # OS:       macOS
-# Compiler: gfortran 9.X
+# Compiler: gfortran X.X/Clang
 # OpenMP:   enabled
 #
 
@@ -21,9 +21,7 @@ OMPLIBS = -lgomp
 
 # MATLAB interface:
 FDIR=$$(dirname `gfortran --print-file-name libgfortran.dylib`)
-MFLAGS += -L${FDIR}
-MEX = $(shell ls -d /Applications/MATLAB_R20**.app)/bin/mex
-#LIBS = -lm -lstdc++.6
-#MEXLIBS= -lm -lstdc++.6 -lgfortran -ldl
+MFLAGS +=-L${FDIR}
+MEX = $(shell ls -d /Applications/MATLAB_R* | sort | tail -1)/bin/mex
 
 
diff --git a/make.inc.macos.intel b/make.inc.macos.intel
index 9d264e3..5797c02 100644
--- a/make.inc.macos.intel
+++ b/make.inc.macos.intel
@@ -7,7 +7,8 @@
 CC=icc
 CXX=icpc
 FC=ifort
-FFLAGS= -fPIC -O3 -march=native -funroll-loops -mkl 
+
+FFLAGS= -fPIC -O3 -march=native -funroll-loops -mkl -std=legacy -w 
 LIBS=
 #CLIBS = -lm -ldl -lifcore
 CLIBS = -lm -ldl
@@ -26,6 +27,11 @@ endif
 #  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
 
 OMPFLAGS = -qopenmp
-OMPLIBS = 
+OMPLIBS = -qopenmp
+
+# MATLAB interface:
+FDIR=$$(dirname `gfortran --print-file-name libgfortran.dylib`)
+MFLAGS +=-L${FDIR}
+MEX = $(shell ls -d /Applications/MATLAB_R* | sort | tail -1)/bin/mex
 
 
diff --git a/make.inc.macos.nag b/make.inc.macos.nag
new file mode 100644
index 0000000..6c07c8f
--- /dev/null
+++ b/make.inc.macos.nag
@@ -0,0 +1,30 @@
+# make.inc for NAG Fortran compiler
+# Online documentation: https://www.nag.com/nagware/np/r71_doc/manual/compiler_2_4.html#OPTIONS
+
+FC=nagfor
+
+# The path of libraries by NAG compiler
+LIB_NAG = /usr/local/lib/NAG_Fortran
+
+# Brief descriptions of specified options below:
+# -PIC: produce position-independent code
+# -O2: optimization at a normal level
+# -Ounroll=2: the depth of loo-unrolling
+# -f90_sign: use the Fortran 77/90 version of the SIGN intrinsic instead of the Fortran 95 one 
+# -dcfuns: enable recognition of non-standard double precision complex intrinsic functions.  
+# -dusty: allows the compilation and execution of legacy software.
+# -w=x77: suppresses extension warnings for obsolete but common extensions to Fortran 77.
+# -w=unreffed: suppresses warning messages about variables set but never referenced.
+# -w=unused: suppresses warning messages about unused entities. 
+# -ieee=full: set the mode of IEEE arithmetic operation according to full mode.
+
+# Main compile command for NAG Fortran compiler
+FFLAGS = -PIC -O2 -Ounroll=1 -f90_sign -dcfuns -dusty -w=obs -w=x77 -w=unreffed -w=unused -ieee=full 
+
+# Flags overwritten in makefile
+OMPFLAGS = -openmp
+# OMPLIBS = -lf71omp64 -L$(LIB_NAG)
+OMPLIBS = -lf71omp64 -lf71rts -L$(LIB_NAG)
+LIBS = -lf71rts -L$(LIB_NAG)
+CLIBS = -lm -ldl -L$(LIB_NAG)
+FFLAGS_DYN = -PIC
diff --git a/make.inc.macos_arm64.gnu b/make.inc.macos_arm64.gnu
new file mode 100644
index 0000000..acf5dd3
--- /dev/null
+++ b/make.inc.macos_arm64.gnu
@@ -0,0 +1,33 @@
+# makefile overrides
+# OS:       macOS
+# Compiler: gfortran X.X/Clang
+# OpenMP:   enabled
+#
+
+CC=gcc
+CXX=g++
+FC=gfortran
+
+FFLAGS= -fPIC -O3 -arch arm64 -std=legacy -w -mno-outline-atomics
+FFLAGS_DYN= -shared -fPIC
+CFLAGS= -fPIC -O3 -arch arm64 -std=c99
+CXXFLAGS= -std=c++11 -DSCTL_PROFILE=-1 -fPIC -O3 -arch arm64 
+
+
+ifeq ($(PREFIX),)
+    FMM_INSTALL_DIR=/usr/local/lib
+endif
+
+
+CFLAGS += -I src 
+
+# OpenMP with gcc on OSX needs the following
+OMPFLAGS = -fopenmp
+OMPLIBS = -lgomp
+
+# MATLAB interface:
+FDIR=$$(dirname `gfortran --print-file-name libgfortran.dylib`)
+MFLAGS +=-L${FDIR}
+MEX = $(shell ls -d /Applications/MATLAB_R* | sort | tail -1)/bin/mex
+
+