ubuntu16.04编译zbar1.0

• 下载zbar1.0
  http://zbar.sourceforge.net/download.html
• 安装依赖
  sudo apt-get install libqt4-dev
sudo apt-get install libv4l-dev
• 编译

cd zbar_directory
chmod 777 configure
export CFLAGS=""
./configure
make

• 遇到错误

In file included from /usr/include/stdio.h:937:0,
                 from zbar/debug.h:60,
                 from zbar/scanner.c:34:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:140:1: error: expected identifier or ‘(’ before ‘{’ token

解决方法：


export CFLAGS="" //将CFLAGS环境变量置为空