diff --git a/config.log b/config.log
new file mode 100644
index 00000000..def64b92
--- /dev/null
+++ b/config.log
@@ -0,0 +1,18 @@
+0.29.2
+3
+using C compiler: ‘Apple clang version 15.0.0 (clang-1500.1.0.2.5)’
+using SDK: ‘’
+clang -arch arm64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c test-omp.c -o test-omp.o
+test-omp.c:1:10: fatal error: 'omp.h' file not found
+#include <omp.h>
+         ^~~~~~~
+1 error generated.
+make: *** [test-omp.o] Error 1
+using C compiler: ‘Apple clang version 15.0.0 (clang-1500.1.0.2.5)’
+using SDK: ‘’
+clang -arch arm64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/arm64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c test-omp.c -o test-omp.o
+test-omp.c:1:10: fatal error: 'omp.h' file not found
+#include <omp.h>
+         ^~~~~~~
+1 error generated.
+make: *** [test-omp.o] Error 1
diff --git a/configure b/configure
index 8d0d7404..22560430 100755
--- a/configure
+++ b/configure
@@ -85,7 +85,7 @@ EOF
 detect_openmp () {
   export PKG_CXXFLAGS=""
   if [ "$(uname)" = "Linux" ]; then
-
+    : '
     printf "%s" "* checking if R installation supports OpenMP without any extra hints... "
     if "${R_HOME}/bin/R" CMD SHLIB test-omp.c >> config.log 2>&1; then
       echo "yes"
@@ -105,6 +105,7 @@ detect_openmp () {
     else
       echo "no"
     fi
+    '
   fi # uname=Linux
 
   if [ "$(uname)" = "Darwin" ]; then
diff --git a/inst/cc b/inst/cc
new file mode 100644
index 00000000..c676937e
--- /dev/null
+++ b/inst/cc
@@ -0,0 +1,2 @@
+CC=clang -arch arm64
+CFLAGS=-falign-functions=64 -Wall -g -O2
diff --git a/src/Makevars b/src/Makevars
deleted file mode 100644
index ddf64050..00000000
--- a/src/Makevars
+++ /dev/null
@@ -1,10 +0,0 @@
-PKG_CPPFLAGS =  -I/usr/local/opt/libomp/include
-PKG_CXXFLAGS =  -Xpreprocessor -fopenmp
-#PKG_CFLAGS =  -Xclang -fopenmp $(SHLIB_OPENMP_CFLAGS) -DNOZLIB
-PKG_LIBS =  -lomp $(SHLIB_OPENMP_CFLAGS) 
-all: $(SHLIB)
-#	@echo PKG_CFLAGS = $(SHLIB_OPENMP_CFLAGS) 
-#	@echo PKG_LIBS = $(PKG_LIBS)
-	if [ "$(SHLIB)" != "myTAI$(SHLIB_EXT)" ]; then mv $(SHLIB) myTAI$(SHLIB_EXT); fi
-	if [ "$(OS)" != "Windows_NT" ] && [ `uname -s` = 'Darwin' ]; then install_name_tool -id myTAI$(SHLIB_EXT) myTAI$(SHLIB_EXT); fi
-