Add parameter to chdir on recollindex startup, /tmp by default. Closes issue #129

src/utils/pathut.cpp

@@ -95,7 +95,7 @@ bool fsocc(const string &path, int *pc, long *blocks)
     return true;
 }
 
-static const string& tmplocation()
+const string& tmplocation()
 {
     static string stmpdir;
     if (stmpdir.empty()) {

src/utils/pathut.h

@@ -74,7 +74,10 @@ bool fsocc(const string &path, int *pc, // Percent occupied
 	   long *avmbs = 0 // Mbs available to non-superuser
 	   );
 
-/// Create temporary directory
+/// Retrieve the temp dir location: $RECOLL_TMPDIR else $TMPDIR else /tmp
+extern const string& tmplocation();
+
+/// Create temporary directory (inside the temp location)
 extern bool maketmpdir(string& tdir, string& reason);
 
 /// mkdir -p