make: add compiler,std variant tests

1 files changed, 26 insertions, 9 deletions

diff --git a/Makefile b/Makefile
index db0e8ab..808c71f 100644
--- a/Makefile
+++ b/Makefile
@@ -22,11 +22,7 @@ LDFLAGS   = $(SANITIZER)
 
 # -- RULES ---------------------------------------------------------------------
 
-all: lint build $(BINS)
-
-bear:
-	bear intercept -- $(MAKE) build $(BINS)
-	bear citnames
+default: lint build $(BINS)
 
 run: $(RUNS)
 
@@ -34,10 +30,6 @@ run/%: build build/%
 	@echo "==> run $*"
 	build/$*
 
-lint:
-	clang-format --dry-run -Werror $(shell find -name '*.cc' -o -name '*.h')
-	clang-tidy test/*.cc -- $(CXXFLAGS)
-
 build/%: build/%.o
 	$(CXX) -o $@ $< $(LDFLAGS)
 
@@ -47,9 +39,34 @@ build/%.o: test/%.cc
 build:
 	mkdir -p build
 
+lint:
+	clang-format --dry-run -Werror $(shell find -name '*.cc' -o -name '*.h')
+	clang-tidy test/*.cc -- $(CXXFLAGS)
+
 clean:
 	$(RM) -r build
 	$(RM) compile_commands.json events.json
 
 # Since DEPS files contain rules, include at the end.
 -include $(DEPS)
+
+# -- SPECIAL RULES -------------------------------------------------------------
+
+# Generate compile database using bear(1).
+bear:
+	bear intercept -- $(MAKE) build $(BINS)
+	bear citnames
+
+define VARTEST
+var-$(1)-$(2):
+	@echo "==> VARTEST CXX=$(1) STD=$(2)"
+	$(MAKE) clean build CXX=$(1) STD=$(2) $(BINS)
+endef
+
+STD_LIST := 14 17 20
+CXX_LIST := g++ clang++
+
+# Generate targets for {compiler,std} variant build tests.
+$(foreach C,$(CXX_LIST),$(foreach S,$(STD_LIST),$(eval $(call VARTEST,$(C),$(S)))))
+# Generate umbrella target to run all variant tests.
+vartest: $(foreach C,$(CXX_LIST),$(foreach S,$(STD_LIST),var-$(C)-$(S)))