3 PNGCRUSH_VERSION
=1.8.13
5 wget https
://sourceforge.net
/projects
/pmt
/files
/pngcrush
/$PNGCRUSH_VERSION/pngcrush-
$PNGCRUSH_VERSION.
tar.gz
/download
-O pngcrush-
$PNGCRUSH_VERSION.
tar.gz
6 tar zxf pngcrush-
$PNGCRUSH_VERSION.
tar.gz
7 cd pngcrush-
$PNGCRUSH_VERSION
8 make && cp -f pngcrush
/usr
/local
/bin
10 rm -fr /tmp
/pngcrush-
$PNGCRUSH_VERSION
11 rm /tmp
/pngcrush-
$PNGCRUSH_VERSION.
tar.gz