ew option to allow "example-common" project to not be included in build. (#225)

* Added a new option to allow "example-common" project to not be included in build.

* Set BGFX_BUILD_EXAMPLE_COMMON as a dependent option, it will be set ON if either tools or examples are included in the build, OFF otherwise.

* cmake format

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

---------

Co-authored-by: Sandy <bwrsandman@gmail.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

CMakeLists.txt

@@ -38,6 +38,10 @@ cmake_dependent_option(BGFX_BUILD_TOOLS_GEOMETRY "Build bgfx geometry tools." ON
 cmake_dependent_option(BGFX_BUILD_TOOLS_TEXTURE "Build bgfx texture tools." ON BGFX_BUILD_TOOLS OFF)
 set(BGFX_TOOLS_PREFIX "" CACHE STRING "Prefix name to add to name of tools (to avoid clashes)")
 option(BGFX_BUILD_EXAMPLES "Build bgfx examples." ON)
+cmake_dependent_option(
+	BGFX_BUILD_EXAMPLE_COMMON "Build bgfx example-common project." OFF "NOT BGFX_BUILD_EXAMPLES;NOT BGFX_BUILD_TOOLS"
+	ON
+)
 option(BGFX_BUILD_TESTS "Build bgfx tests." OFF)
 option(BGFX_INSTALL "Create installation target." ON)
 cmake_dependent_option(

cmake/bgfx/examples.cmake

@@ -263,17 +263,19 @@ if(BGFX_CUSTOM_TARGETS)
 endif()
 
 # Add common library for examples
-add_example(
-	common
-	COMMON
-	DIRECTORIES
-	${BGFX_DIR}/examples/common/debugdraw
-	${BGFX_DIR}/examples/common/entry
-	${BGFX_DIR}/examples/common/font
-	${BGFX_DIR}/examples/common/imgui
-	${BGFX_DIR}/examples/common/nanovg
-	${BGFX_DIR}/examples/common/ps
-)
+if(BGFX_BUILD_EXAMPLE_COMMON)
+	add_example(
+		common
+		COMMON
+		DIRECTORIES
+		${BGFX_DIR}/examples/common/debugdraw
+		${BGFX_DIR}/examples/common/entry
+		${BGFX_DIR}/examples/common/font
+		${BGFX_DIR}/examples/common/imgui
+		${BGFX_DIR}/examples/common/nanovg
+		${BGFX_DIR}/examples/common/ps
+	)
+endif()
 
 # Only add examples if set, otherwise we still need exmaples common for tools
 if(BGFX_BUILD_EXAMPLES)