+++ qgis-1.7.4/src/core/spatialindex/storagemanager/DiskStorageManager.cc	2012-04-21 13:58:04.107239275 +0300
@@ -26,6 +26,7 @@
 #include <sys/stat.h>
 #include <stdio.h>
 #include <cstring>
+#include <unistd.h>
 
 #ifdef WIN32
 #include <io.h>

+++ qgis-1.7.4/src/core/spatialindex/tools/TemporaryFile.cc	2012-04-21 13:16:42.213690282 +0300
@@ -20,7 +20,7 @@
 //    mhadji@gmail.com
 
 #include <stdio.h>
-
+#include <unistd.h>
 #include <Tools.h>
 
 #ifdef WIN32