5 Usage: libpng-config [OPTION] ...
7 Known values for OPTION are:
9 --prefix print libpng prefix
10 --libs print library linking information
11 --cflags print compiler flags
12 --cppflags print pre-processor flags
13 --ldflags print loader flags
14 --rpath print path to shared library
15 --help display this help and exit
16 --version output version information
22 if test $# -eq 0; then
26 while test $# -gt 0; do