isl_mat.c: fix some warnings

diff --git a/isl_mat.c b/isl_mat.c
index 10b6544..07c695e 100644 (file)
--- a/isl_mat.c
+++ b/isl_mat.c
@@ -241,7 +241,7 @@ static void exchange(struct isl_ctx *ctx, struct isl_mat *M, struct isl_mat **U,
 static void subtract(struct isl_mat *M, struct isl_mat **U,
        struct isl_mat **Q, unsigned row, unsigned i, unsigned j, isl_int m)
 {
-       int r, c;
+       int r;
        for (r = row; r < M->n_row; ++r)
                isl_int_submul(M->row[r][j], m, M->row[r][i]);
        if (U) {
@@ -529,7 +529,7 @@ void isl_mat_col_scale(struct isl_mat *mat, unsigned col, isl_int m)
                isl_int_mul(mat->row[i][col], mat->row[i][col], m);
 }
 
-isl_mat_col_combine(struct isl_mat *mat, unsigned dst,
+void isl_mat_col_combine(struct isl_mat *mat, unsigned dst,
        isl_int m1, unsigned src1, isl_int m2, unsigned src2)
 {
        int i;