Tests/BundleUtilities: Fix test with Clang-based MinGW toolchains

The test sources check WIN32, which not every Windows toolchain defines:
bcc64x defaults to a strict standard mode and does not.  Check _WIN32.

The test scripts use GetPrerequisites, which looks for objdump on the
PATH when dumpbin is not found and CMAKE_OBJDUMP is not set.  The objdump
in llvm-mingw is a shell script, and bcc64x provides only llvm-objdump.
Pass the project's CMAKE_OBJDUMP to the scripts.

Tests/BundleUtilities/CMakeLists.txt

@@ -51,6 +51,7 @@ add_custom_target(testbundleutils1_test  ALL
   "-DMODULE=$<TARGET_FILE:module1>"
   "-DINPUTDIR=${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}"
   "-DOUTPUTDIR=${CMAKE_CURRENT_BINARY_DIR}/testdir1"
+  "-DCMAKE_OBJDUMP=${CMAKE_OBJDUMP}"
   -P "${CMAKE_CURRENT_SOURCE_DIR}/bundleutils.cmake"
   DEPENDS testbundleutils1 module1
   )
@@ -82,6 +83,7 @@ add_custom_target(testbundleutils2_test  ALL
   "-DMODULE=$<TARGET_FILE:module2>"
   "-DINPUTDIR=${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}"
   "-DOUTPUTDIR=${CMAKE_CURRENT_BINARY_DIR}/testdir2"
+  "-DCMAKE_OBJDUMP=${CMAKE_OBJDUMP}"
   -P "${CMAKE_CURRENT_SOURCE_DIR}/bundleutils.cmake"
   DEPENDS testbundleutils1 module2
   )

Tests/BundleUtilities/framework.h

@@ -2,7 +2,7 @@
 #ifndef framework_h
 #define framework_h
 
-#ifdef WIN32
+#ifdef _WIN32
 #  ifdef framework_EXPORTS
 #    define FRAMEWORK_EXPORT __declspec(dllexport)
 #  else

Tests/BundleUtilities/shared.h

@@ -2,7 +2,7 @@
 #ifndef shared_h
 #define shared_h
 
-#ifdef WIN32
+#ifdef _WIN32
 #  ifdef shared_EXPORTS
 #    define SHARED_EXPORT __declspec(dllexport)
 #  else

Tests/BundleUtilities/shared2.h

@@ -2,7 +2,7 @@
 #ifndef shared2_h
 #define shared2_h
 
-#ifdef WIN32
+#ifdef _WIN32
 #  ifdef shared2_EXPORTS
 #    define SHARED2_EXPORT __declspec(dllexport)
 #  else

Tests/BundleUtilities/testbundleutils1.cpp

@@ -3,7 +3,7 @@
 #include "shared.h"
 #include "stdio.h"
 
-#if defined(WIN32)
+#if defined(_WIN32)
 #  include <windows.h>
 #else
 #  include "dlfcn.h"
@@ -14,7 +14,7 @@ int main(int, char**)
   framework();
   shared();
 
-#if defined(WIN32)
+#if defined(_WIN32)
   HANDLE lib = LoadLibraryA("module1.dll");
   if (!lib) {
     printf("Failed to open module1\n");

Tests/BundleUtilities/testbundleutils2.cpp

@@ -3,7 +3,7 @@
 #include "shared.h"
 #include "stdio.h"
 
-#if defined(WIN32)
+#if defined(_WIN32)
 #  include <windows.h>
 #else
 #  include "dlfcn.h"
@@ -14,7 +14,7 @@ int main(int, char**)
   framework();
   shared();
 
-#if defined(WIN32)
+#if defined(_WIN32)
   HANDLE lib = LoadLibraryA("module2.dll");
   if (!lib) {
     printf("Failed to open module2\n");

Tests/BundleUtilities/testbundleutils3.cpp

@@ -3,7 +3,7 @@
 #include "shared.h"
 #include "stdio.h"
 
-#if defined(WIN32)
+#if defined(_WIN32)
 #  include <windows.h>
 #else
 #  include "dlfcn.h"
@@ -14,7 +14,7 @@ int main(int, char**)
   framework();
   shared();
 
-#if defined(WIN32)
+#if defined(_WIN32)
   HANDLE lib = LoadLibraryA("module3.dll");
   if (!lib) {
     printf("Failed to open module3\n");