diff --git a/lib/easysdp.c b/lib/easysdp.c
index af22a8d..7a4d137 100644
--- a/lib/easysdp.c
+++ b/lib/easysdp.c
@@ -12,6 +12,9 @@
 #include <math.h>
 #include <csdp/declarations.h>
 
+int checkc(int, struct blockmatrix, int);
+int checkconstraints(int, int, struct blockmatrix, struct constraintmatrix *, int);
+
 int easy_sdp(n,k,C,a,constraints,constant_offset,pX,py,pZ,ppobj,pdobj)
      int n;
      int k;
@@ -65,7 +68,7 @@ int easy_sdp(n,k,C,a,constraints,constant_offset,pX,py,pZ,ppobj,pdobj)
   struct sparseblock *q;
   struct sparseblock *prev=NULL;
   double gap;
-  int nnz;
+  int nnz, res;
 
    /*
     *  Initialize the parameters.
@@ -433,13 +436,13 @@ int easy_sdp(n,k,C,a,constraints,constant_offset,pX,py,pZ,ppobj,pdobj)
     * Check the symmetry of C.
     */
 
-   checkc(n,C,printlevel);
+   res=checkc(n,C,printlevel);
 
    /*
     * Check constraints.
     */
 
-   checkconstraints(n,k,C,constraints,printlevel);
+   res=checkconstraints(n,k,C,constraints,printlevel);
 
    /*
     *  Now, call sdp().
@@ -737,11 +740,7 @@ int checkc(int n,struct blockmatrix C,int printlevel)
  * Sanity tests on the constraints data structure.
  */
 
-int checkconstraints(n,k,C,constraints,printlevel)
-     int n;
-     int k;
-     struct blockmatrix C;
-     struct constraintmatrix *constraints;
+int checkconstraints(int n, int k, struct blockmatrix C, struct constraintmatrix *constraints, int printlevel)
 {
   int i,j;
   struct sparseblock *p;