Fix build for windows

8 files changed, 765 insertions, 0 deletions

diff --git a/msvc/locate_windows_sdk/.gitignore b/msvc/locate_windows_sdk/.gitignore
new file mode 100644
index 0000000..c0a8b2d
--- /dev/null
+++ b/msvc/locate_windows_sdk/.gitignore
@@ -0,0 +1,4 @@
+.vs/
+x64/
+Release/
+Debug/
diff --git a/msvc/locate_windows_sdk/locate_sdk.cpp b/msvc/locate_windows_sdk/locate_sdk.cpp
new file mode 100644
index 0000000..b025bdd
--- /dev/null
+++ b/msvc/locate_windows_sdk/locate_sdk.cpp
@@ -0,0 +1,512 @@
+//
+// Author:   Jonathan Blow
+// Version:  1
+// Date:     31 August, 2018
+//
+// This code is released under the MIT license, which you can find at
+//
+//          https://opensource.org/licenses/MIT
+//
+//
+//
+// See the comments for how to use this library just below the includes.
+//
+
+// Modified by dec05eba to support x86
+
+#include "locate_sdk.hpp"
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+#include <stdint.h>
+#include <io.h>         // For _get_osfhandle
+
+
+//
+// HOW TO USE THIS CODE
+//
+// The purpose of this file is to find the folders that contain libraries
+// you may need to link against, on Windows, if you are linking with any
+// compiled C or C++ code. This will be necessary for many non-C++ programming
+// language environments that want to provide compatibility.
+//
+// We find the place where the Visual Studio libraries live (for example,
+// libvcruntime.lib), where the linker and compiler executables live
+// (for example, link.exe), and where the Windows SDK libraries reside
+// (kernel32.lib, libucrt.lib).
+//
+// We all wish you didn't have to worry about so many weird dependencies,
+// but we don't really have a choice about this, sadly.
+//
+// I don't claim that this is the absolute best way to solve this problem,
+// and so far we punt on things (if you have multiple versions of Visual Studio
+// installed, we return the first one, rather than the newest). But it
+// will solve the basic problem for you as simply as I know how to do it,
+// and because there isn't too much code here, it's easy to modify and expand.
+
+//
+// Call find_visual_studio_and_windows_sdk, look at the resulting
+// paths, then call free_resources on the result.
+//
+// Everything else in this file is implementation details that you
+// don't need to care about.
+//
+
+//
+// This file was about 400 lines before we started adding these comments.
+// You might think that's way too much code to do something as simple
+// as finding a few library and executable paths. I agree. However,
+// Microsoft's own solution to this problem, called "vswhere", is a
+// mere EIGHT THOUSAND LINE PROGRAM, spread across 70 files,
+// that they posted to github *unironically*.
+//
+// I am not making this up: https://github.com/Microsoft/vswhere
+//
+// Several people have therefore found the need to solve this problem
+// themselves. We referred to some of these other solutions when 
+// figuring out what to do, most prominently ziglang's version,
+// by Ryan Saunderson.
+// 
+// I hate this kind of code. The fact that we have to do this at all
+// is stupid, and the actual maneuvers we need to go through
+// are just painful. If programming were like this all the time,
+// I would quit.
+//
+// Because this is such an absurd waste of time, I felt it would be
+// useful to package the code in an easily-reusable way, in the
+// style of the stb libraries. We haven't gone as all-out as some
+// of the stb libraries do (which compile in C with no includes, often).
+// For this version you need C++ and the headers at the top of the file.
+//
+// We return the strings as Windows wide character strings. Aesthetically
+// I don't like that (I think most sane programs are UTF-8 internally),
+// but apparently, not all valid Windows file paths can even be converted
+// correctly to UTF-8. So have fun with that. It felt safest and simplest
+// to stay with wchar_t since all of this code is fully ensconced in
+// Windows crazy-land.
+
+// Defer macro/thing.
+
+#define CONCAT_INTERNAL(x,y) x##y
+#define CONCAT(x,y) CONCAT_INTERNAL(x,y)
+
+template<typename T>
+struct ExitScope {
+	T lambda;
+	ExitScope(T lambda) :lambda(lambda) {}
+	~ExitScope() { lambda(); }
+	ExitScope(const ExitScope&);
+private:
+	ExitScope & operator =(const ExitScope&);
+};
+
+class ExitScopeHelp {
+public:
+	template<typename T>
+	ExitScope<T> operator+(T t) { return t; }
+};
+
+#define defer const auto& CONCAT(defer__, __LINE__) = ExitScopeHelp() + [&]()
+
+
+// COM objects for the ridiculous Microsoft craziness.
+
+struct DECLSPEC_UUID("B41463C3-8866-43B5-BC33-2B0676F7F42E") DECLSPEC_NOVTABLE ISetupInstance : public IUnknown
+{
+    STDMETHOD(GetInstanceId)(_Out_ BSTR* pbstrInstanceId) = 0;
+    STDMETHOD(GetInstallDate)(_Out_ LPFILETIME pInstallDate) = 0;
+    STDMETHOD(GetInstallationName)(_Out_ BSTR* pbstrInstallationName) = 0;
+    STDMETHOD(GetInstallationPath)(_Out_ BSTR* pbstrInstallationPath) = 0;
+    STDMETHOD(GetInstallationVersion)(_Out_ BSTR* pbstrInstallationVersion) = 0;
+    STDMETHOD(GetDisplayName)(_In_ LCID lcid, _Out_ BSTR* pbstrDisplayName) = 0;
+    STDMETHOD(GetDescription)(_In_ LCID lcid, _Out_ BSTR* pbstrDescription) = 0;
+    STDMETHOD(ResolvePath)(_In_opt_z_ LPCOLESTR pwszRelativePath, _Out_ BSTR* pbstrAbsolutePath) = 0;
+};
+
+struct DECLSPEC_UUID("6380BCFF-41D3-4B2E-8B2E-BF8A6810C848") DECLSPEC_NOVTABLE IEnumSetupInstances : public IUnknown
+{
+    STDMETHOD(Next)(_In_ ULONG celt, _Out_writes_to_(celt, *pceltFetched) ISetupInstance** rgelt, _Out_opt_ _Deref_out_range_(0, celt) ULONG* pceltFetched) = 0;
+    STDMETHOD(Skip)(_In_ ULONG celt) = 0;
+    STDMETHOD(Reset)(void) = 0;
+    STDMETHOD(Clone)(_Deref_out_opt_ IEnumSetupInstances** ppenum) = 0;
+};
+
+struct DECLSPEC_UUID("42843719-DB4C-46C2-8E7C-64F1816EFD5B") DECLSPEC_NOVTABLE ISetupConfiguration : public IUnknown
+{
+    STDMETHOD(EnumInstances)(_Out_ IEnumSetupInstances** ppEnumInstances) = 0;
+    STDMETHOD(GetInstanceForCurrentProcess)(_Out_ ISetupInstance** ppInstance) = 0;
+    STDMETHOD(GetInstanceForPath)(_In_z_ LPCWSTR wzPath, _Out_ ISetupInstance** ppInstance) = 0;
+};
+
+
+// The beginning of the actual code that does things.
+
+struct Version_Data {
+	int32_t best_version[4];  // For Windows 8 versions, only two of these numbers are used.
+	wchar_t *best_name;
+};
+
+bool os_file_exists(wchar_t *name) {
+	// @Robustness: What flags do we really want to check here?
+
+	auto attrib = GetFileAttributesW(name);
+	if (attrib == INVALID_FILE_ATTRIBUTES) return false;
+	if (attrib & FILE_ATTRIBUTE_DIRECTORY) return false;
+
+	return true;
+}
+
+wchar_t *concat(const wchar_t *a, const wchar_t *b, const wchar_t *c = nullptr, const  wchar_t *d = nullptr) {
+	// Concatenate up to 4 wide strings together. Allocated with malloc.
+	// If you don't like that, use a programming language that actually
+	// helps you with using custom allocators. Or just edit the code.
+
+	auto len_a = wcslen(a);
+	auto len_b = wcslen(b);
+
+	auto len_c = 0;
+	if (c) len_c = wcslen(c);
+
+	auto len_d = 0;
+	if (d) len_d = wcslen(d);
+
+	wchar_t *result = (wchar_t *)malloc((len_a + len_b + len_c + len_d + 1) * 2);
+	memcpy(result, a, len_a * 2);
+	memcpy(result + len_a, b, len_b * 2);
+
+	if (c) memcpy(result + len_a + len_b, c, len_c * 2);
+	if (d) memcpy(result + len_a + len_b + len_c, d, len_d * 2);
+
+	result[len_a + len_b + len_c + len_d] = 0;
+
+	return result;
+}
+
+typedef void(*Visit_Proc_W)(wchar_t *short_name, wchar_t *full_name, Version_Data *data);
+bool visit_files_w(wchar_t *dir_name, Version_Data *data, Visit_Proc_W proc) {
+
+	// Visit everything in one folder (non-recursively). If it's a directory
+	// that doesn't start with ".", call the visit proc on it. The visit proc
+	// will see if the filename conforms to the expected versioning pattern.
+
+	auto wildcard_name = concat(dir_name, L"\\*");
+	defer{ free(wildcard_name); };
+
+	WIN32_FIND_DATAW find_data;
+	auto handle = FindFirstFileW(wildcard_name, &find_data);
+	if (handle == INVALID_HANDLE_VALUE) return false;
+
+	while (true) {
+		if ((find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && (find_data.cFileName[0] != '.')) {
+			auto full_name = concat(dir_name, L"\\", find_data.cFileName);
+			defer{ free(full_name); };
+
+			proc(find_data.cFileName, full_name, data);
+		}
+
+		auto success = FindNextFileW(handle, &find_data);
+		if (!success) break;
+	}
+
+	FindClose(handle);
+
+	return true;
+}
+
+
+wchar_t *find_windows_kit_root(HKEY key, const wchar_t *version) {
+	// Given a key to an already opened registry entry,
+	// get the value stored under the 'version' subkey.
+	// If that's not the right terminology, hey, I never do registry stuff.
+
+	DWORD required_length;
+	auto rc = RegQueryValueExW(key, version, NULL, NULL, NULL, &required_length);
+	if (rc != 0)  return NULL;
+
+	DWORD length = required_length + 2;  // The +2 is for the maybe optional zero later on. Probably we are over-allocating.
+	wchar_t *value = (wchar_t *)malloc(length);
+	if (!value) return NULL;
+
+	rc = RegQueryValueExW(key, version, NULL, NULL, (LPBYTE)value, &length);  // We know that version is zero-terminated...
+	if (rc != 0)  return NULL;
+
+	// The documentation says that if the string for some reason was not stored
+	// with zero-termination, we need to manually terminate it. Sigh!!
+
+	if (value[length]) {
+		value[length + 1] = 0;
+	}
+
+	return value;
+}
+
+void win10_best(wchar_t *short_name, wchar_t *full_name, Version_Data *data) {
+	// Find the Windows 10 subdirectory with the highest version number.
+
+	int i0, i1, i2, i3;
+	auto success = swscanf_s(short_name, L"%d.%d.%d.%d", &i0, &i1, &i2, &i3);
+	if (success < 4) return;
+
+	if (i0 < data->best_version[0]) return;
+	else if (i0 == data->best_version[0]) {
+		if (i1 < data->best_version[1]) return;
+		else if (i1 == data->best_version[1]) {
+			if (i2 < data->best_version[2]) return;
+			else if (i2 == data->best_version[2]) {
+				if (i3 < data->best_version[3]) return;
+			}
+		}
+	}
+
+	// we have to copy_string and free here because visit_files free's the full_name string
+	// after we execute this function, so Win*_Data would contain an invalid pointer.
+	if (data->best_name) free(data->best_name);
+	data->best_name = _wcsdup(full_name);
+
+	if (data->best_name) {
+		data->best_version[0] = i0;
+		data->best_version[1] = i1;
+		data->best_version[2] = i2;
+		data->best_version[3] = i3;
+	}
+}
+
+void win8_best(wchar_t *short_name, wchar_t *full_name, Version_Data *data) {
+	// Find the Windows 8 subdirectory with the highest version number.
+
+	int i0, i1;
+	auto success = swscanf_s(short_name, L"winv%d.%d", &i0, &i1);
+	if (success < 2) return;
+
+	if (i0 < data->best_version[0]) return;
+	else if (i0 == data->best_version[0]) {
+		if (i1 < data->best_version[1]) return;
+	}
+
+	// we have to copy_string and free here because visit_files free's the full_name string
+	// after we execute this function, so Win*_Data would contain an invalid pointer.
+	if (data->best_name) free(data->best_name);
+	data->best_name = _wcsdup(full_name);
+
+	if (data->best_name) {
+		data->best_version[0] = i0;
+		data->best_version[1] = i1;
+	}
+}
+
+void find_windows_kit_root(Find_Result *result) {
+	// Information about the Windows 10 and Windows 8 development kits
+	// is stored in the same place in the registry. We open a key
+	// to that place, first checking preferntially for a Windows 10 kit,
+	// then, if that's not found, a Windows 8 kit.
+
+	HKEY main_key;
+
+	auto rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots",
+		0, KEY_QUERY_VALUE | KEY_WOW64_32KEY | KEY_ENUMERATE_SUB_KEYS, &main_key);
+	if (rc != S_OK) return;
+	defer{ RegCloseKey(main_key); };
+
+	// Look for a Windows 10 entry.
+	auto windows10_root = find_windows_kit_root(main_key, L"KitsRoot10");
+
+	if (windows10_root) {
+		defer{ free(windows10_root); };
+		Version_Data data = { 0 };
+		auto windows10_lib = concat(windows10_root, L"Lib");
+		defer{ free(windows10_lib); };
+
+		visit_files_w(windows10_lib, &data, win10_best);
+		if (data.best_name) {
+			result->windows_sdk_version = 10;
+			result->windows_sdk_root = data.best_name;
+			return;
+		}
+	}
+
+	// Look for a Windows 8 entry.
+	auto windows8_root = find_windows_kit_root(main_key, L"KitsRoot81");
+
+	if (windows8_root) {
+		defer{ free(windows8_root); };
+
+		auto windows8_lib = concat(windows8_root, L"Lib");
+		defer{ free(windows8_lib); };
+
+		Version_Data data = { 0 };
+		visit_files_w(windows8_lib, &data, win8_best);
+		if (data.best_name) {
+			result->windows_sdk_version = 8;
+			result->windows_sdk_root = data.best_name;
+			return;
+		}
+	}
+
+	// If we get here, we failed to find anything.
+}
+
+
+void find_visual_studio_by_fighting_through_microsoft_craziness(Find_Result *result) {
+	// The name of this procedure is kind of cryptic. Its purpose is
+	// to fight through Microsoft craziness. The things that the fine
+	// Visual Studio team want you to do, JUST TO FIND A SINGLE FOLDER
+	// THAT EVERYONE NEEDS TO FIND, are ridiculous garbage.
+
+	// For earlier versions of Visual Studio, you'd find this information in the registry,
+	// similarly to the Windows Kits above. But no, now it's the future, so to ask the
+	// question "Where is the Visual Studio folder?" you have to do a bunch of COM object
+	// instantiation, enumeration, and querying. (For extra bonus points, try doing this in
+	// a new, underdeveloped programming language where you don't have COM routines up
+	// and running yet. So fun.)
+	//
+	// If all this COM object instantiation, enumeration, and querying doesn't give us
+	// a useful result, we drop back to the registry-checking method.
+
+	auto rc = CoInitialize(NULL);
+	// "Subsequent valid calls return false." So ignore false.
+	// if rc != S_OK  return false;
+
+	GUID my_uid = { 0x42843719, 0xDB4C, 0x46C2,{ 0x8E, 0x7C, 0x64, 0xF1, 0x81, 0x6E, 0xFD, 0x5B } };
+	GUID CLSID_SetupConfiguration = { 0x177F0C4A, 0x1CD3, 0x4DE7,{ 0xA3, 0x2C, 0x71, 0xDB, 0xBB, 0x9F, 0xA3, 0x6D } };
+
+	ISetupConfiguration *config = NULL;
+	auto hr = CoCreateInstance(CLSID_SetupConfiguration, NULL, CLSCTX_INPROC_SERVER, my_uid, (void **)&config);
+	if (hr != 0)  return;
+	defer{ config->Release(); };
+
+	IEnumSetupInstances *instances = NULL;
+	hr = config->EnumInstances(&instances);
+	if (hr != 0)     return;
+	if (!instances)  return;
+	defer{ instances->Release(); };
+
+	while (1) {
+		ULONG found = 0;
+		ISetupInstance *instance = NULL;
+		auto hr = instances->Next(1, &instance, &found);
+		if (hr != S_OK) break;
+
+		defer{ instance->Release(); };
+
+		BSTR bstr_inst_path;
+		hr = instance->GetInstallationPath(&bstr_inst_path);
+		if (hr != S_OK)  continue;
+		defer{ SysFreeString(bstr_inst_path); };
+
+		auto tools_filename = concat(bstr_inst_path, L"\\VC\\Auxiliary\\Build\\Microsoft.VCToolsVersion.default.txt");
+		defer{ free(tools_filename); };
+
+		FILE *f = nullptr;
+		auto open_result = _wfopen_s(&f, tools_filename, L"rt");
+		if (open_result != 0) continue;
+		if (!f) continue;
+		defer{ fclose(f); };
+
+		LARGE_INTEGER tools_file_size;
+		auto file_handle = (HANDLE)_get_osfhandle(_fileno(f));
+		BOOL success = GetFileSizeEx(file_handle, &tools_file_size);
+		if (!success) continue;
+
+		auto version_bytes = (tools_file_size.QuadPart + 1) * 2;  // Warning: This multiplication by 2 presumes there is no variable-length encoding in the wchars (wacky characters in the file could betray this expectation).
+		wchar_t *version = (wchar_t *)malloc(version_bytes);
+		defer{ free(version); };
+
+		auto read_result = fgetws(version, version_bytes, f);
+		if (!read_result) continue;
+
+		auto version_tail = wcschr(version, '\n');
+		if (version_tail)  *version_tail = 0;  // Stomp the data, because nobody cares about it.
+
+		auto library_path = concat(bstr_inst_path, L"\\VC\\Tools\\MSVC\\", version, L"\\lib\\x64");
+		auto library_file = concat(library_path, L"\\vcruntime.lib");  // @Speed: Could have library_path point to this string, with a smaller count, to save on memory flailing!
+
+		if (os_file_exists(library_file)) {
+			auto link_exe_path = concat(bstr_inst_path, L"\\VC\\Tools\\MSVC\\", version, L"\\bin\\Hostx64\\x64");
+			result->vs_exe_path = link_exe_path;
+			result->vs_library_path = library_path;
+			return;
+		}
+
+		/*
+		Ryan Saunderson said:
+		"Clang uses the 'SetupInstance->GetInstallationVersion' / ISetupHelper->ParseVersion to find the newest version
+		and then reads the tools file to define the tools path - which is definitely better than what i did."
+
+		So... @Incomplete: Should probably pick the newest version...
+		*/
+	}
+
+	// If we get here, we didn't find Visual Studio 2017. Try earlier versions.
+
+	HKEY vs7_key;
+	rc = RegOpenKeyExA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\VisualStudio\\SxS\\VS7", 0, KEY_QUERY_VALUE | KEY_WOW64_32KEY, &vs7_key);
+
+	if (rc != S_OK)  return;
+	defer{ RegCloseKey(vs7_key); };
+
+	// Hardcoded search for 4 prior Visual Studio versions. Is there something better to do here?
+	const wchar_t *versions[] = { L"14.0", L"12.0", L"11.0", L"10.0" };
+	const int NUM_VERSIONS = sizeof(versions) / sizeof(versions[0]);
+
+	for (int i = 0; i < NUM_VERSIONS; i++) {
+		auto v = versions[i];
+
+		DWORD dw_type;
+		DWORD cb_data;
+
+		auto rc = RegQueryValueExW(vs7_key, v, NULL, &dw_type, NULL, &cb_data);
+		if ((rc == ERROR_FILE_NOT_FOUND) || (dw_type != REG_SZ)) {
+			continue;
+		}
+
+		auto buffer = (wchar_t *)malloc(cb_data);
+		if (!buffer)  return;
+		defer{ free(buffer); };
+
+		rc = RegQueryValueExW(vs7_key, v, NULL, NULL, (LPBYTE)buffer, &cb_data);
+		if (rc != 0)  continue;
+
+		// @Robustness: Do the zero-termination thing suggested in the RegQueryValue docs?
+
+		auto lib_path = concat(buffer, L"VC\\Lib\\amd64");
+
+		// Check to see whether a vcruntime.lib actually exists here.
+		auto vcruntime_filename = concat(lib_path, L"\\vcruntime.lib");
+		defer{ free(vcruntime_filename); };
+
+		if (os_file_exists(vcruntime_filename)) {
+			result->vs_exe_path = concat(buffer, L"VC\\bin");
+			result->vs_library_path = lib_path;
+			return;
+		}
+
+		free(lib_path);
+	}
+
+	// If we get here, we failed to find anything.
+}
+
+Find_Result find_visual_studio_and_windows_sdk(SdkArch sdkArch) {
+	Find_Result result;
+
+	find_windows_kit_root(&result);
+
+	if (result.windows_sdk_root) {
+		result.windows_sdk_um_library_path = concat(result.windows_sdk_root, L"\\um\\x64");
+		result.windows_sdk_ucrt_library_path = concat(result.windows_sdk_root, L"\\ucrt\\x64");
+	}
+
+	find_visual_studio_by_fighting_through_microsoft_craziness(&result);
+
+	return result;
+}
+
+void free_resources(Find_Result *result) {
+	free(result->windows_sdk_root);
+	free(result->windows_sdk_um_library_path);
+	free(result->windows_sdk_ucrt_library_path);
+	free(result->vs_exe_path);
+	free(result->vs_library_path);
+}
diff --git a/msvc/locate_windows_sdk/locate_sdk.hpp b/msvc/locate_windows_sdk/locate_sdk.hpp
new file mode 100644
index 0000000..6446aa4
--- /dev/null
+++ b/msvc/locate_windows_sdk/locate_sdk.hpp
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <windows.h>
+#include <stdlib.h>
+
+struct Find_Result {
+	int windows_sdk_version;   // Zero if no Windows SDK found.
+
+	wchar_t *windows_sdk_root = NULL;
+	wchar_t *windows_sdk_um_library_path = NULL;
+	wchar_t *windows_sdk_ucrt_library_path = NULL;
+
+	wchar_t *vs_exe_path = NULL;
+	wchar_t *vs_library_path = NULL;
+};
+
+enum SdkArch
+{
+    ARCH_X86,
+    ARCH_X64
+};
+
+Find_Result find_visual_studio_and_windows_sdk(SdkArch sdkArch);
+
+void free_resources(Find_Result *result);
\ No newline at end of file
diff --git a/msvc/locate_windows_sdk/locate_windows_sdk.sln b/msvc/locate_windows_sdk/locate_windows_sdk.sln
new file mode 100644
index 0000000..f5b2cd3
--- /dev/null
+++ b/msvc/locate_windows_sdk/locate_windows_sdk.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27703.2018
+MinimumVisualStudioVersion = 10.0.40219.1
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new file mode 100644
index 0000000..e030615
--- /dev/null
+++ b/msvc/locate_windows_sdk/locate_windows_sdk.vcxproj
@@ -0,0 +1,159 @@
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+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+    <ClCompile Include="locate_sdk.cpp" />
+    <ClCompile Include="main.cpp" />
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+  <ItemGroup>
+    <ClInclude Include="locate_sdk.hpp" />
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
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+</Project>
\ No newline at end of file
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new file mode 100644
index 0000000..f9d71ea
--- /dev/null
+++ b/msvc/locate_windows_sdk/locate_windows_sdk.vcxproj.filters
@@ -0,0 +1,30 @@
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\ No newline at end of file
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new file mode 100644
index 0000000..be25078
--- /dev/null
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@@ -0,0 +1,4 @@
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\ No newline at end of file
diff --git a/msvc/locate_windows_sdk/main.cpp b/msvc/locate_windows_sdk/main.cpp
new file mode 100644
index 0000000..7f9b0a4
--- /dev/null
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