New files missing from the previous commit.

src/slic3r/Utils/Platform.cpp

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+#include "Platform.hpp"
+
+
+// For starting another PrusaSlicer instance on OSX.
+// Fails to compile on Windows on the build server.
+
+#include <wx/stdpaths.h>
+
+namespace Slic3r {
+namespace GUI {
+
+static auto s_platform 		  = Platform::Uninitialized;
+static auto s_platform_flavor = PlatformFlavor::Uninitialized;
+
+void detect_platform()
+{
+#if defined(_WIN32)
+	s_platform 		  = Platform::Windows;
+	s_platform_flavor = PlatformFlavor::Generic;
+#elif defined(__APPLE__)
+	s_platform 		  = Platform::OSX;
+	s_platform_flavor = PlatformFlavor::Generic;
+#elif defined(__linux__)
+	s_platform 		  = Platform::Linux;
+	s_platform_flavor = PlatformFlavor::GenericLinux;
+	// Test for Chromium.
+	{
+		FILE *f = ::fopen("/proc/version", "rt");
+		if (f) {
+			char buf[4096];
+			// Read the 1st line.
+			if (::fgets(buf, 4096, f) && strstr(buf, "Chromium OS") != nullptr)
+				s_platform_flavor = LinuxOnChromium;
+			::fclose(f);
+		}
+	}
+#elif defined(__OpenBSD__)
+	s_platform 		  = Platform::BSD;
+	s_platform_flavor = PlatformFlavor::OpenBSD;
+#else
+	// This should not happen.
+	static_assert(false, "Unknown platform detected");
+	s_platform 		  = Platform::Unknown;
+	s_platform_flavor = PlatformFlavor::Unknown;
+#endif
+}
+
+Platform platform()
+{
+	return s_platform;
+}
+
+PlatformFlavor platform_flavor()
+{
+	return s_platform_flavor;
+}
+
+} // namespace GUI
+} // namespace Slic3r

src/slic3r/Utils/Platform.hpp

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+#ifndef SLIC3R_GUI_Utils_Platform_HPP
+#define SLIC3R_GUI_Utils_Platform_HPP
+
+namespace Slic3r {
+namespace GUI {
+
+enum class Platform
+{
+	Uninitialized,
+	Unknown,
+	Windows,
+	OSX,
+	Linux,
+	BSD,
+};
+
+enum class PlatformFlavor
+{
+	Uninitialized,
+	Unknown,
+	// For Windows and OSX, until we need to be more specific.
+	Generic,
+	// For Platform::Linux
+	GenericLinux,
+	LinuxOnChromium,
+	// For Platform::BSD
+	OpenBSD,
+};
+
+// To be called on program start-up.
+void 			detect_platform();
+
+Platform 		platform();
+PlatformFlavor 	platform_flavor();
+
+
+} // namespace GUI
+} // namespace Slic3r
+
+#endif // SLIC3R_GUI_Utils_Platform_HPP