file.c::file_initialize: added support for env GRIB_API_IO_BUFFER_SIZE

ChangeLog

@@ -2,6 +2,10 @@
 
 	* Version 1.5.9 released
 
+2012-11-09  Uwe Schulzweida  <Uwe.Schulzweida@zmaw.de>
+
+	* file.c::file_initialize: added support for env GRIB_API_IO_BUFFER_SIZE [request: Florian Prill]
+
 2012-11-07  Uwe Schulzweida  <Uwe.Schulzweida@zmaw.de>
 
 	* gridGenXvals/gridGenYvals: removed changes from 1.5.8 (bug fix)

src/file.c

@@ -758,6 +758,11 @@ void file_initialize(void)
 
   value  = file_getenv("FILE_BUFSIZE");
   if ( value >= 0 ) FileBufferSizeEnv = value;
+  else
+    {
+      value  = file_getenv("GRIB_API_IO_BUFFER_SIZE");
+      if ( value >= 0 ) FileBufferSizeEnv = value;
+    }
 
   value = file_getenv("FILE_TYPE");
   if ( value > 0 )