Allow testing this with many compilers using make CXX=c++compiler.

Author: nanoant

.gitignore

@@ -1,2 +1,4 @@
 *.o
 *flops
+*.dSYM/
+*flops-*

Makefile

@@ -1,12 +1,21 @@
 CPPFLAGS += -fopenmp -O3 -g -march=native
 
-all: sseflops avxflops
+ifneq ($(CXX),c++)
+ifneq ($(CXX),g++)
+SUFFIX := -$(CXX)
+endif
+endif
 
-sseflops: sseflops.o
-	$(CXX) -o $@ $< $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)
+TESTS := sseflops$(SUFFIX) avxflops$(SUFFIX)
 
-avxflops: avxflops.o
-	$(CXX) -o $@ $< $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)
+all: $(TESTS)
+
+clean:; rm -f $(TESTS) $(addsuffix .o, $(TESTS))
 
-clean:
-	rm -f *.o
+.SECONDARY:
+
+%$(SUFFIX).o:: %.cc
+	$(CXX) -o $@ -c $< $(CXXFLAGS) $(CPPFLAGS)
+
+%$(SUFFIX): %$(SUFFIX).o
+	$(CXX) -o $@ $< $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS)

README.md

@@ -7,3 +7,5 @@ Usage
 -----
 
 Just `make` then run. If you do not have min. *Sandy Bridge / AVX* CPU `avxflops` build will fail, but you can still test with `sseflops`.
+
+Use `make CXX=c++compiler` to build test with other compiler, the output files will be suffixed with `-c++compiler`.