configure: add --with-sundials (preliminary work)

1 files changed, 32 insertions, 0 deletions

diff --git a/src/grt/grt-no_sundials_c.c b/src/grt/grt-no_sundials_c.c
new file mode 100644
index 000000000..87e7bb7a5
--- /dev/null
+++ b/src/grt/grt-no_sundials_c.c
@@ -0,0 +1,32 @@
+#include <stddef.h>
+typedef double realtype;
+
+realtype *
+grt_sundials_get_yy_vec(void)
+{
+  return NULL;
+}
+
+realtype *
+grt_sundials_get_yp_vec(void)
+{
+  return NULL;
+}
+
+int
+grt_sundials_init(int sz)
+{
+  return -1;
+}
+
+int
+grt_sundials_start (void)
+{
+  return -1;
+}
+
+int
+grt_sundials_solve(realtype t0, realtype *tn, int *res)
+{
+  return 1;
+}