From 161664f2531d4bfe2d089a3df2ddcc80385b3c75 Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Fri, 1 Nov 2019 17:24:06 -0600
Subject: [PATCH] try to comfort iverilog package extraction

---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 6ec2cd01a..fde4fc9c7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -106,7 +106,8 @@ install:
     if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
       IVERILOG_URL="https://github.com/steveicarus/iverilog/archive/v10_3.tar.gz"
       travis_retry wget --no-clobber --no-check-certificate --quiet -O - ${IVERILOG_URL}
-      tar -xzf v10_3.tar.gz
+      mkdir -p iverilog-10_3
+      tar -xz v10_3.tar.gz
       cd iverlog-10_3
       sh autoconf.sh --prefix=${DEPS_DIR}/iverilog-10_3/bin
       ./configure --prefix=${DEPS_DIR}/iverilog-10_3/bin