Add separate demo build target, build demo and threads with build target

.github/workflows/test-build-system.yml

@@ -44,7 +44,7 @@ jobs:
 
     - name: (g++) Check built objects are present
       run: |
-        ls build/demo build/libammonite.so
+        ls build/demo build/threadDemo build/libammonite.so
 
     - name: Clean build area
       run: |
@@ -64,7 +64,7 @@ jobs:
 
     - name: (clang++) Check built objects are present
       run: |
-        ls build/demo build/libammonite.so
+        ls build/demo build/threadDemo build/libammonite.so
 
     - name: Test library install target
       run: |

Makefile

@@ -79,8 +79,9 @@ $(OBJECT_DIR)/threadDemo.o: ./src/threadDemo.cpp $(AMMONITE_HEADER_SOURCE)
 	@mkdir -p "$(OBJECT_DIR)"
 	$(CXX) ./src/threadDemo.cpp -c $(CXXFLAGS) -o "$@"
 
-.PHONY: build debug library headers install uninstall clean cache icons threads $(AMMONITE_HEADER_INSTALL)
-build: $(BUILD_DIR)/demo
+.PHONY: build demo threads debug library headers install uninstall clean cache icons $(AMMONITE_HEADER_INSTALL)
+build: demo threads
+demo: $(BUILD_DIR)/demo
 	@if [[ "$(DEBUG)" != "true" ]]; then \
 	  strip --strip-unneeded "$(BUILD_DIR)/demo"; \
 	fi

README.md

@@ -55,10 +55,11 @@
 
 ## Build system:
   - ### Targets:
-    - `build`, `debug`, `library` and `threads` support building on multiple cores with `-jX`
-    - `make build` - Builds demo binary, a working demonstration of the renderer
+    - `build`, `debug`, `library`, `demo` and `threads` support `-j[CORE COUNT]`
+    - `make build` - Builds the demo and thread demo
     - `make debug` - Cleans build directory, then runs `make build` in debug mode
     - `make library` - Builds `build/libammonite.so`
+    - `make demo` - Builds a demo binary, a working demonstration of the renderer
     - `make threads` - Builds a test program for the thread pool
     - `make install` - Installs `libammonite.so` to system directories
       - The install path can be configured, by setting the environment variable `INSTALL_DIR`