pssolve: fix construct_matrix() signature

Make it compatible with TPExecuteCallback

1 files changed, 3 insertions, 1 deletions

diff --git a/pssolve.c b/pssolve.c
index 882eed3..e03404e 100644
--- a/pssolve.c
+++ b/pssolve.c
@@ -73,7 +73,7 @@ typedef struct ConstructMatrixThread {
     unsigned int var_idx;
 } ConstructMatrixThread;
 
-static void construct_matrix(void *arg, unsigned int job_idx, unsigned int thread_idx)
+static int construct_matrix(void *arg, unsigned int job_idx, unsigned int thread_idx)
 {
     ConstructMatrixThread      *cmt = arg;
     const PSEquationContext *eq_ctx = cmt->eq_ctx;
@@ -92,6 +92,8 @@ static void construct_matrix(void *arg, unsigned int job_idx, unsigned int threa
 
         mat[idx_grid + mat_stride * idx_coeff] = val;
     }
+
+    return 0;
 }
 
 static int lu_invert(TDLogger *logger, const int N, double *mat, double *rhs, int *ipiv)