Copy the execute_sync-function from krafix

Sources/kong.c

@@ -587,3 +587,23 @@ int main(int argc, char **argv) {
 
 	return 0;
 }
+
+#ifdef _WIN32
+#include <Windows.h>
+#endif
+
+void execute_sync(const char* command) {
+#ifdef _WIN32
+	STARTUPINFOA startupInfo;
+	PROCESS_INFORMATION processInfo;
+	memset(&startupInfo, 0, sizeof(startupInfo));
+	memset(&processInfo, 0, sizeof(processInfo));
+	startupInfo.cb = sizeof(startupInfo);
+	CreateProcessA(nullptr, (char*)command, nullptr, nullptr, FALSE, CREATE_DEFAULT_ERROR_MODE, "PATH=%PATH%;.\\cygwin\\bin\0", nullptr, &startupInfo, &processInfo);
+	WaitForSingleObject(processInfo.hProcess, INFINITE);
+	CloseHandle(processInfo.hProcess);
+	CloseHandle(processInfo.hThread);
+#else
+	system(command);
+#endif
+}