Don't mix declarations and definitions.

opm/core/pressure/tpfa/ifs_tpfa.c

@@ -760,11 +760,11 @@ ifs_tpfa_assemble_comprock_increment(struct UnstructuredGrid      *G        ,
                                      struct ifs_tpfa_data         *h        )
 /* ---------------------------------------------------------------------- */
 {
-    int   c, w, wdof, system_singular;
+    int     c, w, wdof, system_singular, ok;
     size_t  j;
     double *v;
-    int ok = 1;
 
+    ok = 1;
     assemble_incompressible(G, F, trans, gpress, h, &system_singular, &ok);
 
     /* We want to solve a Newton step for the residual