cmake: enable disabing hidapi

CMakeLists.txt

@@ -515,10 +515,12 @@ set_option(SDL_INSTALL_TESTS   "Install test-cases" OFF)
 
 set(HAVE_STATIC_PIC "${SDL_STATIC_PIC}")
 
-if(HIDAPI_ONLY_LIBUSB)
-  set(SDL_HIDAPI_LIBUSB ON CACHE BOOL "" FORCE)
-elseif(HIDAPI_SKIP_LIBUSB)
-  set(SDL_HIDAPI_LIBUSB OFF CACHE BOOL "" FORCE)
+if(SDL_HIDAPI)
+  if(HIDAPI_ONLY_LIBUSB)
+    set(SDL_HIDAPI_LIBUSB ON CACHE BOOL "" FORCE)
+  elseif(HIDAPI_SKIP_LIBUSB)
+    set(SDL_HIDAPI_LIBUSB OFF CACHE BOOL "" FORCE)
+  endif()
 endif()
 
 if(VITA)

cmake/sdlchecks.cmake

@@ -1176,49 +1176,53 @@ endmacro()
 # Check for HIDAPI support
 macro(CheckHIDAPI)
   set(HAVE_HIDAPI TRUE)
-  if(SDL_HIDAPI_LIBUSB)
-    set(HAVE_LIBUSB FALSE)
-    pkg_check_modules(LIBUSB libusb-1.0)
-    if(LIBUSB_FOUND)
-      check_include_file(libusb.h HAVE_LIBUSB_H ${LIBUSB_CFLAGS})
-      if(HAVE_LIBUSB_H)
-        set(HAVE_LIBUSB TRUE)
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBUSB_CFLAGS}")
-        if(HIDAPI_ONLY_LIBUSB)
-          list(APPEND EXTRA_LIBS ${LIBUSB_LIBS})
-        elseif(OS2)
-          set(SDL_LIBUSB_DYNAMIC "\"usb100.dll\"")
-        else()
-          # libusb is loaded dynamically, so don't add it to EXTRA_LIBS
-          FindLibraryAndSONAME("usb-1.0")
-          if(USB_1.0_LIB)
-            set(SDL_LIBUSB_DYNAMIC "\"${USB_1.0_LIB_SONAME}\"")
+  if(SDL_HIDAPI)
+    if(SDL_HIDAPI_LIBUSB)
+      set(HAVE_LIBUSB FALSE)
+      pkg_check_modules(LIBUSB libusb-1.0)
+      if(LIBUSB_FOUND)
+        check_include_file(libusb.h HAVE_LIBUSB_H ${LIBUSB_CFLAGS})
+        if(HAVE_LIBUSB_H)
+          set(HAVE_LIBUSB TRUE)
+          set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${LIBUSB_CFLAGS}")
+          if(HIDAPI_ONLY_LIBUSB)
+            list(APPEND EXTRA_LIBS ${LIBUSB_LIBS})
+          elseif(OS2)
+            set(SDL_LIBUSB_DYNAMIC "\"usb100.dll\"")
+          else()
+            # libusb is loaded dynamically, so don't add it to EXTRA_LIBS
+            FindLibraryAndSONAME("usb-1.0")
+            if(USB_1.0_LIB)
+              set(SDL_LIBUSB_DYNAMIC "\"${USB_1.0_LIB_SONAME}\"")
+            endif()
           endif()
         endif()
       endif()
+      if(HIDAPI_ONLY_LIBUSB AND NOT HAVE_LIBUSB)
+        set(HAVE_HIDAPI FALSE)
+      endif()
     endif()
-    if(HIDAPI_ONLY_LIBUSB AND NOT HAVE_LIBUSB)
-      set(HAVE_HIDAPI FALSE)
-    endif()
-  endif()
 
-  if(HAVE_HIDAPI)
-    if(ANDROID)
-      list(APPEND SOURCE_FILES ${SDL2_SOURCE_DIR}/src/hidapi/android/hid.cpp)
-    endif()
-    if(IOS OR TVOS)
-      list(APPEND SOURCE_FILES ${SDL2_SOURCE_DIR}/src/hidapi/ios/hid.m)
-      set(SDL_FRAMEWORK_COREBLUETOOTH 1)
-    endif()
-    set(HAVE_SDL_HIDAPI TRUE)
-
-    if(SDL_JOYSTICK AND SDL_HIDAPI_JOYSTICK)
-      set(SDL_JOYSTICK_HIDAPI 1)
-      set(HAVE_SDL_JOYSTICK TRUE)
-      set(HAVE_HIDAPI_JOYSTICK TRUE)
-      file(GLOB HIDAPI_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/hidapi/*.c)
-      list(APPEND SOURCE_FILES ${HIDAPI_JOYSTICK_SOURCES})
+    if(HAVE_HIDAPI)
+      if(ANDROID)
+        list(APPEND SOURCE_FILES ${SDL2_SOURCE_DIR}/src/hidapi/android/hid.cpp)
+      endif()
+      if(IOS OR TVOS)
+        list(APPEND SOURCE_FILES ${SDL2_SOURCE_DIR}/src/hidapi/ios/hid.m)
+        set(SDL_FRAMEWORK_COREBLUETOOTH 1)
+      endif()
+      set(HAVE_SDL_HIDAPI TRUE)
+
+      if(SDL_JOYSTICK AND SDL_HIDAPI_JOYSTICK)
+        set(SDL_JOYSTICK_HIDAPI 1)
+        set(HAVE_SDL_JOYSTICK TRUE)
+        set(HAVE_HIDAPI_JOYSTICK TRUE)
+        file(GLOB HIDAPI_JOYSTICK_SOURCES ${SDL2_SOURCE_DIR}/src/joystick/hidapi/*.c)
+        list(APPEND SOURCE_FILES ${HIDAPI_JOYSTICK_SOURCES})
+      endif()
     endif()
+  else()
+    set(SDL_HIDAPI_DISABLED 1)
   endif()
 endmacro()