From db0d20a6c322211593fecf209898f2435468e813 Mon Sep 17 00:00:00 2001
From: Roland Stigge <stigge@antcom.de>
Date: Sat, 26 Jan 2019 23:19:38 +0100
Subject: Improved Cooley-Tukey

---
 Makefile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 7b3a78f..8a88b0c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,16 @@
-CXX=clang++-7
+CXX=clang++-7 -stdlib=libc++
+CXXFLAGS=-stdlib=libc++ -Wall -O2 -std=c++17
+#-march=native -mtune=native # is not better for llvm
+
+# libstdc++-8 doesn't have transform_reduce
+#CXX=g++-8
+#CXXFLAGS=-Wall -O2 -std=c++17 -nostdinc++ -I/usr/lib/llvm-7/include/c++/v1 -nodefaultlibs -lc++ -lc++abi -lm -lc -lgcc_s -lgcc
+# -march=native -mtune=native # doesn't help for gcc
 
 all: fft
 
 fft: fft.cpp
-	$(CXX) -Wall -O2 -std=c++17 -o $@ $^
+	$(CXX) $(CXXFLAGS) -o $@ $^
 
 install:
 
-- 
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