add missing header

6 years ago · cf61e1e564
1 changed files with 2 additions and 0 deletions
--- a/src/spicelib/analysis/optran.c
+++ b/src/spicelib/analysis/optran.c
@ -6,6 +6,8 @@ Modified BSD license

 /* subroutine to generate OP by TRANSIENT analysis */

+#include <errno.h>
+
 #include "ngspice/ngspice.h"
 #include "ngspice/cktdefs.h"
 #include "cktaccept.h"