use statvfs() if statfs() is not available (Solaris)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12096 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/utilsunx.cpp

@@ -37,6 +37,12 @@
 #  endif
 #endif // HAVE_STATFS
 
+#ifdef HAVE_STATVFS
+    #include <sys/statvfs.h>
+
+    #define statfs statvfs
+#endif // HAVE_STATVFS
+
 #if wxUSE_GUI
     #include "wx/unix/execute.h"
 #endif
@@ -1008,8 +1014,7 @@ long wxGetFreeMemory()
 #ifndef __WXMAC__
 bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 {
-#ifdef HAVE_STATFS
-
+#if defined(HAVE_STATFS) || defined(HAVE_STATVFS)
     struct statfs fs;
     if ( statfs(path, &fs) != 0 )
     {
@@ -1018,6 +1023,9 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
         return FALSE;
     }
 
+    // under Solaris we might have to use fs.f_frsize instead as I think it
+    // may be a multiple of the block size in general (TODO)
+
     if ( pTotal )
     {
         *pTotal = wxLongLong(fs.f_blocks) * fs.f_bsize;