From cd12b35a348abc51110a86274e50f56ce536ea38 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <anonymous.maarten@gmail.com>
Date: Mon, 27 Mar 2023 19:42:37 +0200
Subject: [PATCH] Fix -Wundef warnings due to use of unguarded
 HAVE_PLATFORM_BACKEND

---
 src/hidapi/SDL_hidapi.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/src/hidapi/SDL_hidapi.c b/src/hidapi/SDL_hidapi.c
index 2d2df9f933..b28243deae 100644
--- a/src/hidapi/SDL_hidapi.c
+++ b/src/hidapi/SDL_hidapi.c
@@ -899,7 +899,7 @@ struct hidapi_backend
     const wchar_t *(*hid_error)(void *device);
 };
 
-#if HAVE_PLATFORM_BACKEND
+#ifdef HAVE_PLATFORM_BACKEND
 static const struct hidapi_backend PLATFORM_Backend = {
     (void *)PLATFORM_hid_write,
     (void *)PLATFORM_hid_read_timeout,
@@ -958,7 +958,7 @@ struct SDL_hid_device_
 };
 static char device_magic;
 
-#if HAVE_PLATFORM_BACKEND || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
+#if defined(HAVE_PLATFORM_BACKEND) || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
 
 static SDL_hid_device *
 CreateHIDDeviceWrapper(void *device, const struct hidapi_backend *backend)
@@ -986,7 +986,7 @@ DeleteHIDDeviceWrapper(SDL_hid_device *device)
     }
 
 #ifndef SDL_HIDAPI_DISABLED
-#if HAVE_PLATFORM_BACKEND || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
+#if defined(HAVE_PLATFORM_BACKEND) || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
 
 #define COPY_IF_EXISTS(var)                \
     if (pSrc->var != NULL) {               \
@@ -1134,7 +1134,7 @@ int SDL_hid_init(void)
     }
 #endif /* HAVE_LIBUSB */
 
-#if HAVE_PLATFORM_BACKEND
+#ifdef HAVE_PLATFORM_BACKEND
     ++attempts;
 #if __LINUX__
     udev_ctx = SDL_UDEV_GetUdevSyms();
@@ -1169,7 +1169,7 @@ int SDL_hid_exit(void)
     HIDAPI_ShutdownDiscovery();
 #endif
 
-#if HAVE_PLATFORM_BACKEND
+#ifdef HAVE_PLATFORM_BACKEND
     if (udev_ctx) {
         result |= PLATFORM_hid_exit();
     }
@@ -1224,7 +1224,7 @@ struct SDL_hid_device_info *SDL_hid_enumerate(unsigned short vendor_id, unsigned
     struct SDL_hid_device_info *driver_devs = NULL;
     struct SDL_hid_device_info *driver_dev;
 #endif
-#if HAVE_PLATFORM_BACKEND
+#ifdef HAVE_PLATFORM_BACKEND
     struct SDL_hid_device_info *raw_devs = NULL;
     struct SDL_hid_device_info *raw_dev;
 #endif
@@ -1280,7 +1280,7 @@ struct SDL_hid_device_info *SDL_hid_enumerate(unsigned short vendor_id, unsigned
     }
 #endif /* HAVE_DRIVER_BACKEND */
 
-#if HAVE_PLATFORM_BACKEND
+#ifdef HAVE_PLATFORM_BACKEND
     if (udev_ctx) {
         raw_devs = PLATFORM_hid_enumerate(vendor_id, product_id);
 #ifdef DEBUG_HIDAPI
@@ -1368,14 +1368,14 @@ void SDL_hid_free_enumeration(struct SDL_hid_device_info *devs)
 
 SDL_hid_device *SDL_hid_open(unsigned short vendor_id, unsigned short product_id, const wchar_t *serial_number)
 {
-#if HAVE_PLATFORM_BACKEND || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
+#if defined(HAVE_PLATFORM_BACKEND) || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
     void *pDevice = NULL;
 
     if (SDL_hidapi_refcount == 0 && SDL_hid_init() != 0) {
         return NULL;
     }
 
-#if HAVE_PLATFORM_BACKEND
+#if defined(HAVE_PLATFORM_BACKEND)
     if (udev_ctx) {
         pDevice = PLATFORM_hid_open(vendor_id, product_id, serial_number);
         if (pDevice != NULL) {
@@ -1407,14 +1407,14 @@ SDL_hid_device *SDL_hid_open(unsigned short vendor_id, unsigned short product_id
 
 SDL_hid_device *SDL_hid_open_path(const char *path, int bExclusive /* = false */)
 {
-#if HAVE_PLATFORM_BACKEND || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
+#if defined(HAVE_PLATFORM_BACKEND) || defined(HAVE_DRIVER_BACKEND) || defined(HAVE_LIBUSB)
     void *pDevice = NULL;
 
     if (SDL_hidapi_refcount == 0 && SDL_hid_init() != 0) {
         return NULL;
     }
 
-#if HAVE_PLATFORM_BACKEND
+#if defined(HAVE_PLATFORM_BACKEND)
     if (udev_ctx) {
         pDevice = PLATFORM_hid_open_path(path, bExclusive);
         if (pDevice != NULL) {