diff --git a/.gitignore b/.gitignore
index 85ed7e7..19d5d8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@
 **/*.s
 **/a.out
 /tmp*
+/thirdparty
 /chibicc
 /test/*.exe
 /stage2
diff --git a/test/thirdparty/common b/test/thirdparty/common
new file mode 100644
index 0000000..5c4ba8a
--- /dev/null
+++ b/test/thirdparty/common
@@ -0,0 +1,11 @@
+make="make -j$(nproc)"
+chibicc=`pwd`/chibicc
+
+dir=$(basename -s .git $repo)
+
+set -e -x
+
+mkdir -p thirdparty
+cd thirdparty
+[ -d $dir ] || git clone $repo
+cd $dir
diff --git a/test/thirdparty/git.sh b/test/thirdparty/git.sh
new file mode 100755
index 0000000..d20d1e1
--- /dev/null
+++ b/test/thirdparty/git.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+repo='git@github.com:git/git.git'
+. test/thirdparty/common
+git reset --hard 54e85e7af1ac9e9a92888060d6811ae767fea1bc
+
+$make clean
+$make V=1 CC=$chibicc test
diff --git a/test/thirdparty/libpng.sh b/test/thirdparty/libpng.sh
new file mode 100755
index 0000000..8146eb5
--- /dev/null
+++ b/test/thirdparty/libpng.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+repo='git@github.com:rui314/libpng.git'
+. test/thirdparty/common
+git reset --hard dbe3e0c43e549a1602286144d94b0666549b18e6
+
+CC=$chibicc ./configure
+sed -i 's/^wl=.*/wl=-Wl,/; s/^pic_flag=.*/pic_flag=-fPIC/' libtool
+$make clean
+$make
+$make test
diff --git a/test/thirdparty/sqlite.sh b/test/thirdparty/sqlite.sh
new file mode 100755
index 0000000..d59def4
--- /dev/null
+++ b/test/thirdparty/sqlite.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+repo='git@github.com:sqlite/sqlite.git'
+. test/thirdparty/common
+git reset --hard 86f477edaa17767b39c7bae5b67cac8580f7a8c1
+
+CC=$chibicc CFLAGS=-D_GNU_SOURCE ./configure
+sed -i 's/^wl=.*/wl=-Wl,/; s/^pic_flag=.*/pic_flag=-fPIC/' libtool
+$make clean
+$make
+$make test
diff --git a/test/thirdparty/tinycc.sh b/test/thirdparty/tinycc.sh
new file mode 100755
index 0000000..0228ebf
--- /dev/null
+++ b/test/thirdparty/tinycc.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+repo='git@github.com:TinyCC/tinycc.git'
+. test/thirdparty/common
+git reset --hard df67d8617b7d1d03a480a28f9f901848ffbfb7ec
+
+./configure --cc=$chibicc
+$make clean
+$make
+$make CC=cc test