diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..30bb815
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,36 @@
+# test binaries
+/teststandardpaths
+/teststandardpaths*.exe
+
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e3d7bf8
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "cutf"]
+	path = cutf
+	url = https://github.com/tapika/cutf.git
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..97f77c9
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,48 @@
+CC  ?= gcc
+CXX ?= g++
+TARGET_MACHINE := $(shell $(CC) -dumpmachine)
+ifneq ($(LINUX),true)
+ifneq ($(MACOS),true)
+ifneq ($(WINDOWS),true)
+
+ifneq (,$(findstring linux,$(TARGET_MACHINE)))
+LINUX=true
+endif
+ifneq (,$(findstring apple,$(TARGET_MACHINE)))
+MACOS=true
+endif
+ifneq (,$(findstring mingw,$(TARGET_MACHINE)))
+WINDOWS=true
+endif
+ifneq (,$(findstring windows,$(TARGET_MACHINE)))
+WINDOWS=true
+endif
+
+endif
+endif
+endif
+
+
+CFLAGS += -std=c++17 -I.
+
+ifeq ($(WINDOWS),true)
+APP_EXT ?= .exe
+CFLAGS += -I./cutf
+endif
+
+PROG = teststandardpaths
+SOURCES = \
+	standardpaths.cpp \
+	teststandardpaths.cpp
+
+ifeq ($(WINDOWS),true)
+SOURCES += cutf/cutf.cpp
+endif
+
+all: $(PROG)$(APP_EXT)
+
+$(PROG)$(APP_EXT): $(SOURCES)
+	$(CXX) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+clean:
+	-rm -f $(PROG)$(APP_EXT) *.o
diff --git a/build-win32.sh b/build-win32.sh
new file mode 100755
index 0000000..d476c8a
--- /dev/null
+++ b/build-win32.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+# Preparation
+_FLAGS="-DPTW32_STATIC_LIB -Werror"
+_ARCH=i686-w64-mingw32
+_PREFIX="/usr/${_ARCH}"
+
+source win.env
+
+# Build now
+make "$@"
diff --git a/build-win64.sh b/build-win64.sh
new file mode 100755
index 0000000..2dfede8
--- /dev/null
+++ b/build-win64.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+
+# Preparation
+_FLAGS="-DPTW32_STATIC_LIB -Werror"
+_ARCH=x86_64-w64-mingw32
+_PREFIX="/usr/${_ARCH}"
+
+source win.env
+
+# Build now
+make APP_EXT="-64.exe" "$@"
diff --git a/cutf b/cutf
new file mode 160000
index 0000000..ca60c39
--- /dev/null
+++ b/cutf
@@ -0,0 +1 @@
+Subproject commit ca60c39e1815ae6bc7f7c9fa880dc5d9b8ed0edc
diff --git a/standardpaths.cpp b/standardpaths.cpp
new file mode 100644
index 0000000..cc3ac09
--- /dev/null
+++ b/standardpaths.cpp
@@ -0,0 +1,113 @@
+/* Re-implemented in C++ after GLib's gutils.c */
+
+#include "standardpaths.hpp"
+
+namespace fs = std::filesystem;
+
+#ifdef _WIN32
+fs::path getWindowsDirectory(void) {
+    wchar_t wcp[MAX_PATH];
+    fs::path windowsDir("");
+
+    if (GetWindowsDirectoryW(wcp, MAX_PATH)) {
+        // Usually X:\Windows, but in terminal server environments
+        // might be an UNC path, AFAIK.
+        windowsDir = widetoutf8(wcp);
+    }
+
+    if (windowsDir.empty())
+        windowsDir = "C:\\";
+
+    return windowsDir;
+}
+
+
+fs::path getWindowsKnownFolder(REFKNOWNFOLDERID folder_guid) {
+    wchar_t *wcp = NULL;
+    fs::path specialFolder("");
+    HRESULT hr;
+
+    hr = SHGetKnownFolderPath(folder_guid, 0, NULL, &wcp);
+
+    if (SUCCEEDED (hr)) {
+        specialFolder = widetoutf8(wcp);   // XXX: convert to UTF-8
+    }
+
+    CoTaskMemFree(wcp);
+
+    return specialFolder;
+}
+#endif
+
+fs::path getHomeDir() {
+    const char *path_p;
+    fs::path homeDir("");
+
+    /* We first check HOME and use it if it is set */
+    if (path_p = std::getenv("HOME")) {
+        homeDir = path_p;
+    }
+
+#ifdef _WIN32
+    /* Only believe HOME if it is an absolute path and exists.
+     *
+     * We only do this check on Windows fnot on UNIX because
+     * of things like autofs. If the user has a bogus value in
+     * $HOME they're repsonsible
+     */
+    if (!homeDir.empty() && !(homeDir.is_absolute() && fs::is_directory(homeDir))) {
+        homeDir.clear();
+    }
+
+    if (homeDir.empty()) {
+        /* USERPROFILE is probably the closest equivalent to $HOME? */
+        if (path_p = std::getenv("USERPROFILE"))
+            homeDir = path_p;
+    }
+
+    if (homeDir.empty()) {
+        homeDir = getWindowsKnownFolder(FOLDERID_Profile);
+    }
+
+    if (homeDir.empty()) {
+        homeDir = getWindowsDirectory();
+    }
+#endif /* _WIN32 */
+
+#ifndef _WIN32
+    if (homeDir.empty()) {
+        /* If we didn't get it from any of those methods, we will have
+         * to read the user database entry.
+         */
+        homeDir = getpwuid(getuid())->pw_dir;
+    }
+#endif
+
+    /* If we have been denied access to /etc/passwd (for example, by an
+     * overly-zealous LSM), make up a junk value. */
+    if (homeDir.empty()) {
+        homeDir = "/";
+    }
+
+    return homeDir;
+}
+
+
+fs::path getUserConfigDir() {
+    const char *path_p;
+    fs::path configDir("");
+
+    if (path_p = std::getenv("XDG_CONFIG_HOME"))
+        configDir = path_p;
+
+#ifdef _WIN32
+    else
+        configDir = getWindowsKnownFolder(FOLDERID_LocalAppData);
+#endif
+    if (configDir.empty()) {
+        configDir = getHomeDir() / ".config", NULL;
+    }
+
+    return configDir;
+}
+
diff --git a/standardpaths.hpp b/standardpaths.hpp
new file mode 100644
index 0000000..27eb424
--- /dev/null
+++ b/standardpaths.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#ifdef _WIN32
+#include <windows.h>
+#include <knownfolders.h>
+#include <shlobj.h>
+
+#include "cutf.h"
+#else
+#include <unistd.h>
+#include <sys/types.h>
+#include <pwd.h>
+#endif
+
+#include <cstdlib>
+#include <filesystem>
+
+
+#ifdef _WIN32
+std::filesystem::path getWindowsDirectory(void);
+std::filesystem::path getWindowsKnownFolder(REFKNOWNFOLDERID folder_guid);
+#endif
+std::filesystem::path getHomeDir();
+std::filesystem::path getUserConfigDir();
diff --git a/teststandardpaths.cpp b/teststandardpaths.cpp
new file mode 100644
index 0000000..b7aaf98
--- /dev/null
+++ b/teststandardpaths.cpp
@@ -0,0 +1,13 @@
+#include <iostream>
+
+#include "standardpaths.hpp"
+
+int main() {
+    std::cout << "Home dir = " << getHomeDir() << std::endl;
+#ifdef _WIN32
+    std::cout << "Windows dir = " << getWindowsDirectory() << std::endl;
+    std::cout << "Profile dir = " << getWindowsKnownFolder(FOLDERID_Profile) << std::endl;
+#endif
+    std::cout << "User config dir = " << getUserConfigDir() << std::endl;
+    return 0;
+}
diff --git a/win.env b/win.env
new file mode 100644
index 0000000..41b6ba1
--- /dev/null
+++ b/win.env
@@ -0,0 +1,10 @@
+export AR=${_ARCH}-ar
+export CC=${_ARCH}-gcc
+export CFLAGS="${_FLAGS}"
+export CROSS_COMPILING=true
+export CXX=${_ARCH}-g++
+export CXXFLAGS="${_FLAGS}"
+export LDFLAGS="-static -luuid -lole32"
+export PATH=${_PREFIX}/bin:$PATH
+export PKG_CONFIG_PATH=${_PREFIX}/lib/pkgconfig
+export WIN32=true