$ tar xf libpng-1.2.49.tar.gz
$ cd libpng-1.2.49
$ make -n install -f scripts/makefile.linux | wc -l
97
$ make -n install -f scripts/makefile.linux | grep /bin/rm
/bin/rm -f /usr/local/include/png.h /usr/local/include/pngconf.h
/bin/rm -f /usr/local/include/libpng
/bin/rm -f /usr/local/lib/libpng.a
/bin/rm -f /usr/local/lib/libpng12.so.0.1.2.49* /usr/local/lib/libpng12.so
/bin/rm -f /usr/local/lib/libpng12.so.0
/bin/rm -f /usr/local/lib/libpng.so
/bin/rm -f /usr/local/lib/libpng.so.3
/bin/rm -f /usr/local/lib/libpng.so.3.1.2.49*
/bin/rm -f /usr/local/lib/pkgconfig/libpng12.pc
/bin/rm -f /usr/local/lib/pkgconfig/libpng.pc
/bin/rm -f /usr/local/man/man3/libpng.3
/bin/rm -f /usr/local/man/man3/libpngpf.3
/bin/rm -f /usr/local/man/man5/png.5
/bin/rm -f /usr/local/bin/libpng-config
/bin/rm -f /usr/local/bin/libpng12-config