ddraw/tests: Fix compilation on systems that don't support nameless unions.

[Francois Gouget]

---
 dlls/ddraw/tests/ddraw4.c | 8 ++++----
 dlls/ddraw/tests/ddraw7.c | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/dlls/ddraw/tests/ddraw4.c b/dlls/ddraw/tests/ddraw4.c
index 485633f..d14ffc6 100644
--- a/dlls/ddraw/tests/ddraw4.c
+++ b/dlls/ddraw/tests/ddraw4.c
@@ -4088,9 +4088,9 @@ static void test_block_formats_creation(void)
                     ddsd.dwFlags = DDSD_PIXELFORMAT | DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS;
                     ddsd.ddsCaps.dwCaps = types[j].caps;
                     ddsd.ddsCaps.dwCaps2 = types[j].caps2;
-                    ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
-                    ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
-                    ddsd.ddpfPixelFormat.dwFourCC = formats[i].fourcc;
+                    U4(ddsd).ddpfPixelFormat.dwSize = sizeof(U4(ddsd).ddpfPixelFormat);
+                    U4(ddsd).ddpfPixelFormat.dwFlags = DDPF_FOURCC;
+                    U4(ddsd).ddpfPixelFormat.dwFourCC = formats[i].fourcc;
                     ddsd.dwWidth = w;
                     ddsd.dwHeight = h;
 
@@ -4214,7 +4214,7 @@ static void test_unsupported_formats(void)
             memset(&ddsd, 0, sizeof(ddsd));
             ddsd.dwSize = sizeof(ddsd);
             ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
-            ddsd.ddpfPixelFormat = formats[i].fmt;
+            U4(ddsd).ddpfPixelFormat = formats[i].fmt;
             ddsd.dwWidth = 4;
             ddsd.dwHeight = 4;
             ddsd.ddsCaps.dwCaps = DDSCAPS_TEXTURE | caps[j];
diff --git a/dlls/ddraw/tests/ddraw7.c b/dlls/ddraw/tests/ddraw7.c
index 7c97432..c50f1d7 100644
--- a/dlls/ddraw/tests/ddraw7.c
+++ b/dlls/ddraw/tests/ddraw7.c
@@ -3902,9 +3902,9 @@ static void test_block_formats_creation(void)
                     ddsd.dwFlags = DDSD_PIXELFORMAT | DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS;
                     ddsd.ddsCaps.dwCaps = types[j].caps;
                     ddsd.ddsCaps.dwCaps2 = types[j].caps2;
-                    ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat);
-                    ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
-                    ddsd.ddpfPixelFormat.dwFourCC = formats[i].fourcc;
+                    U4(ddsd).ddpfPixelFormat.dwSize = sizeof(U4(ddsd).ddpfPixelFormat);
+                    U4(ddsd).ddpfPixelFormat.dwFlags = DDPF_FOURCC;
+                    U4(ddsd).ddpfPixelFormat.dwFourCC = formats[i].fourcc;
                     ddsd.dwWidth = w;
                     ddsd.dwHeight = h;
 
@@ -4028,7 +4028,7 @@ static void test_unsupported_formats(void)
             memset(&ddsd, 0, sizeof(ddsd));
             ddsd.dwSize = sizeof(ddsd);
             ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
-            ddsd.ddpfPixelFormat = formats[i].fmt;
+            U4(ddsd).ddpfPixelFormat = formats[i].fmt;
             ddsd.dwWidth = 4;
             ddsd.dwHeight = 4;
             ddsd.ddsCaps.dwCaps = DDSCAPS_TEXTURE | caps[j];
-- 
1.8.4.rc3