Move getopt.h include into win32/unistd.h

Fixes issue #605

tools/deb2solv.c

@@ -15,7 +15,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
-#include <getopt.h>
 
 #include "util.h"
 #include "pool.h"

tools/dumpsolv.c

@@ -9,7 +9,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
-#include <getopt.h>
 
 static int with_attr;
 static int dump_json;

tools/mergesolv.c

@@ -16,7 +16,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
-#include <getopt.h>
 
 #include "pool.h"
 #include "repo_solv.h"

tools/repo2solv.c

@@ -5,7 +5,6 @@
  * for further information
  */
 
-#include <getopt.h>
 #include <sys/types.h>
 #include <stdio.h>
 #include <stdlib.h>

tools/testsolv.c

@@ -1,7 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
-#include <getopt.h>
 
 #include "pool.h"
 #include "repo.h"

win32/unistd.h

@@ -1,4 +1,6 @@
 #ifndef _UNISTD_H
 #define _UNISTD_H
 
+#include <getopt.h>
+
 #endif