build: add option to disable examples in CMake

BinomialLLC · Nov 1, 2024 · e4d2662 · e4d2662
1 parent 7c046f8
commit e4d2662
Showing 1 changed file with 37 additions and 18 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -5,6 +5,7 @@ cmake_minimum_required(VERSION 3.5)
 project(basisu)
 option(STATIC "static linking" FALSE)
 option(SAN "sanitize" FALSE)
+option(EXAMPLES "Build examples" TRUE)
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
 
@@ -174,15 +175,21 @@ add_executable(basisu basisu_tool.cpp)
 target_link_libraries(basisu PRIVATE basisu_encoder)
 
 # Create the new example executable and link against the static library
-add_executable(examples example/example.cpp)
-target_link_libraries(examples PRIVATE basisu_encoder)
+if(EXAMPLES)
+    add_executable(examples example/example.cpp)
+    target_link_libraries(examples PRIVATE basisu_encoder)
+endif()
 
 if (ZSTD)
     target_compile_definitions(basisu PRIVATE BASISD_SUPPORT_KTX2_ZSTD=1)
-    target_compile_definitions(examples PRIVATE BASISD_SUPPORT_KTX2_ZSTD=1)
+    if(EXAMPLES)
+        target_compile_definitions(examples PRIVATE BASISD_SUPPORT_KTX2_ZSTD=1)
+    endif()
 else()
     target_compile_definitions(basisu PRIVATE BASISD_SUPPORT_KTX2_ZSTD=0)
-    target_compile_definitions(examples PRIVATE BASISD_SUPPORT_KTX2_ZSTD=0)
+    if(EXAMPLES)
+        target_compile_definitions(examples PRIVATE BASISD_SUPPORT_KTX2_ZSTD=0)
+    endif()
 endif()
 
 if (NOT MSVC)
@@ -192,7 +199,9 @@ if (NOT MSVC)
         set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -DBASISU_SUPPORT_OPENCL=1")    
 
         target_include_directories(basisu PRIVATE ${OpenCL_INCLUDE_DIRS})
-        target_include_directories(examples PRIVATE ${OpenCL_INCLUDE_DIRS})
+        if(EXAMPLES)
+            target_include_directories(examples PRIVATE ${OpenCL_INCLUDE_DIRS})
+        endif()
 		target_include_directories(basisu_encoder PRIVATE ${OpenCL_INCLUDE_DIRS})
         set(BASISU_EXTRA_LIBS ${OpenCL_LIBRARIES})
     endif()
@@ -203,22 +212,30 @@ else()
         set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -DBASISU_SUPPORT_OPENCL=1")    
 
         target_include_directories(basisu PRIVATE "OpenCL")
-        target_include_directories(examples PRIVATE "OpenCL")
+        if(EXAMPLES)
+            target_include_directories(examples PRIVATE "OpenCL")
+        endif()
 		target_include_directories(basisu_encoder PRIVATE "OpenCL")
 
         if (BUILD_X64)
             target_link_libraries(basisu PRIVATE "${CMAKE_SOURCE_DIR}/OpenCL/lib/OpenCL64.lib")
-            target_link_libraries(examples PRIVATE "${CMAKE_SOURCE_DIR}/OpenCL/lib/OpenCL64.lib")
+            if(EXAMPLES)
+                target_link_libraries(examples PRIVATE "${CMAKE_SOURCE_DIR}/OpenCL/lib/OpenCL64.lib")
+            endif()
         else()
             target_link_libraries(basisu PRIVATE "${CMAKE_SOURCE_DIR}/OpenCL/lib/OpenCL.lib")
-            target_link_libraries(examples PRIVATE "${CMAKE_SOURCE_DIR}/OpenCL/lib/OpenCL.lib")
+            if(EXAMPLES)
+                target_link_libraries(examples PRIVATE "${CMAKE_SOURCE_DIR}/OpenCL/lib/OpenCL.lib")
+            endif()
         endif()
     endif()
 endif()    
 
 if (NOT MSVC)
     target_link_libraries(basisu PRIVATE m pthread ${BASISU_EXTRA_LIBS})
-    target_link_libraries(examples PRIVATE m pthread ${BASISU_EXTRA_LIBS})
+    if(EXAMPLES)
+        target_link_libraries(examples PRIVATE m pthread ${BASISU_EXTRA_LIBS})
+    endif()
 endif()
 
 if (NOT EMSCRIPTEN)
@@ -242,13 +259,15 @@ if (MSVC)
         RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
         RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
         RUNTIME_OUTPUT_DIRECTORY_MINSIZEREL ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-    )	
-
-	set_target_properties(examples PROPERTIES 
-        RUNTIME_OUTPUT_NAME "examples"
-        RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-        RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-        RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-        RUNTIME_OUTPUT_DIRECTORY_MINSIZEREL ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
-    )	
+    )
+
+    if(EXAMPLES)
+        set_target_properties(examples PROPERTIES
+            RUNTIME_OUTPUT_NAME "examples"
+            RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
+            RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
+            RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
+            RUNTIME_OUTPUT_DIRECTORY_MINSIZEREL ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
+        )
+    endif()
 endif()