From 15ad2db8fc4e608d05e87d4d447cb0a5f1081c95 Mon Sep 17 00:00:00 2001
From: Johann Glaser <Johann.Glaser@gmx.at>
Date: Mon, 18 Mar 2013 20:58:47 +0100
Subject: [PATCH] fixed a crash when lines start with whitespace

---
 kernel/register.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/register.cc b/kernel/register.cc
index ebb834c8f..a61548b64 100644
--- a/kernel/register.cc
+++ b/kernel/register.cc
@@ -132,7 +132,7 @@ void Pass::extra_args(std::vector<std::string> args, size_t argidx, RTLIL::Desig
 void Pass::call(RTLIL::Design *design, std::string command)
 {
 	std::vector<std::string> args;
-	char *s = strdup(command.c_str()), *saveptr;
+	char *s = strdup(command.c_str()), *sstart = s, *saveptr;
 	s += strspn(s, " \t\r\n");
 	if (*s == 0 || *s == '#')
 		return;
@@ -160,7 +160,7 @@ void Pass::call(RTLIL::Design *design, std::string command)
 		} else
 			args.push_back(str);
 	}
-	free(s);
+	free(sstart);
 	call(design, args);
 }
 
-- 
2.30.2