Add oasis.exe rule and fix Makefile

Add oasis.exe rule

Remove .exe extension which is handled by goreleaser

Move build-windows phony target

Change release-build option to previous version

.goreleaser.yaml

@@ -60,7 +60,7 @@ builds:
       - arm64
   - <<: *build-common
     id: oasis-windows-amd64
-    binary: oasis.exe
+    binary: oasis
     env:
       - CC=x86_64-w64-mingw32-gcc
       - CXX=x86_64-w64-mingw32-g++

Makefile

@@ -14,14 +14,16 @@ all: build
 # Build.
 build: oasis
 
-build-windows: $(shell find . -name "*.go" -type f) go.sum go.mod
-	@$(PRINT) "$(MAGENTA)*** Building for Windows...$(OFF)\n"
-	GOOS=windows GOARCH=amd64 $(GO) build -v -o oasis.exe $(GOFLAGS) $(GO_EXTRA_FLAGS)
+build-windows: oasis.exe
 
 oasis: $(shell find . -name "*.go" -type f) go.sum go.mod
 	@$(PRINT) "$(MAGENTA)*** Building Go code...$(OFF)\n"
 	@$(GO) build -v -o oasis $(GOFLAGS) $(GO_EXTRA_FLAGS)
 
+oasis.exe: $(shell find . -name "*.go" -type f) go.sum go.mod
+	@$(PRINT) "$(MAGENTA)*** Building for Windows...$(OFF)\n"
+	GOOS=windows GOARCH=amd64 $(GO) build -v -o oasis.exe $(GOFLAGS) $(GO_EXTRA_FLAGS)
+
 examples: $(EXAMPLES)
 
 examples/%.out: examples/%.in oasis scripts/gen_example.sh
@@ -82,10 +84,10 @@ clean:
 # List of targets that are not actual files.
 .PHONY: \
 	all build \
+	build-windows \
 	examples \
 	clean-examples \
 	fmt \
 	$(lint-targets) lint \
 	$(test-targets) test \
 	clean
-	windows