Fixed some problems found while compiling and linking Wine under
Cygwin.

diff --git a/include/config.h.in b/include/config.h.in
index acb44f4..62f75c1 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -395,6 +395,9 @@
 /* Define to 1 if you have the `pread' function. */
 #undef HAVE_PREAD
 
+/* Define to 1 if you have the <process.h> header file. */
+#undef HAVE_PROCESS_H
+
 /* Define to 1 if you have the <pthread.h> header file. */
 #undef HAVE_PTHREAD_H