This is a tool to install Apache Bench (ab) without installing apache.


INSTALLATION:

1.run install_first.sh to install apr and apr-util.
    ./install_first.sh

2.add the path of apr-1.pc to PKG_CONFIG_PATH, make sure that system can find apr-1.pc by searching PKG_CONFIG_PATH.
    export PKG_CONFIG_PATH=${PKG_CONFIG_PATH}:`pwd`/apr/lib/pkgconfig/
    
    another way is to creat a link file in /usr/lib/pkgconfig:
    sudo ln -s `pwd`/apr/lib/pkgconfig/apr-1.pc /usr/local/lib/pkgconfig/apr-1.pc
    
    test the installation of apr, apr-util
    make apr-skeleton
    ldd apr-skeleton

3.compile src/ab.c and test ab. 
    make ab
    ldd ab
    ./ab -V


source files in src/:
    ab.c:               ab source code.
    ap_release.h:       head file for ab.c.
    apr-skeleton.c:     a simple apr based program.