diff --git a/libcork/include/libcork/config/config.h b/libcork/include/libcork/config/config.h
index 3a288572..077be5c8 100644
--- a/libcork/include/libcork/config/config.h
+++ b/libcork/include/libcork/config/config.h
@@ -40,7 +40,7 @@
 #include <sys/param.h>
 #endif
 
-#if defined(__linux)
+#if defined(__linux) || defined(__CYGWIN__)
 /* Do some Linux-specific autodetection. */
 #include <libcork/config/linux.h>
 
diff --git a/libcork/posix/subprocess.c b/libcork/posix/subprocess.c
index f2a2442d..75f1c4e5 100644
--- a/libcork/posix/subprocess.c
+++ b/libcork/posix/subprocess.c
@@ -508,7 +508,7 @@ cork_subprocess_is_finished(struct cork_subprocess *self)
         && cork_read_pipe_is_finished(&self->stderr_pipe);
 }
 
-#if defined(__APPLE__) || defined(__MINGW32__)
+#if defined(__APPLE__) || defined(__MINGW32__) || defined(__CYGWIN__)
 #include <pthread.h>
 #define THREAD_YIELD   pthread_yield_np
 #elif defined(__linux__) || defined(BSD)