diff --git a/Makefile b/Makefile
index d98d73b..7fe94ab 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ REGRESS = $(patsubst test/sql/%.sql,%,$(TESTS))
 REGRESS_OPTS = --inputdir=test --load-extension=$(EXTENSION)
 
 # To compile for portability, run: make OPTFLAGS=""
-OPTFLAGS = -march=native
+OPTFLAGS = -mcpu=native#-march=native
 
 # Mac ARM doesn't always support -march=native
 ifeq ($(shell uname -s), Darwin)
@@ -30,7 +30,7 @@ endif
 # For auto-vectorization:
 # - GCC (needs -ftree-vectorize OR -O3) - https://gcc.gnu.org/projects/tree-ssa/vectorization.html
 # - Clang (could use pragma instead) - https://llvm.org/docs/Vectorizers.html
-PG_CFLAGS += $(OPTFLAGS) -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math
+PG_CFLAGS += $(OPTFLAGS) -ftree-vectorize -fassociative-math -fno-signed-zeros -fno-trapping-math -lm
 
 # Debug GCC auto-vectorization
 # PG_CFLAGS += -fopt-info-vec