links as configure, except for libpng.la and libpng14.la.

People don't need libpng.so.NN

except for libpng.la and libpng14.la.  Many other scripts to be fixed soon.

libpng.sl.14, and libpng.14.dylib links in the installed library directory.

KNOWNBUG, and libpng.la (Robert Schwebel).

unclosed if-statement warning (Philip Lowman).

    in pngtest.c

in pngset.c to be consistent with other changes in version 1.2.38.

    (revising changes made in 1.2.41beta17 and 1.2.41rc01)

The change in version 1.2.41beta08 caused transparency to be handled wrong
in some 16-bit datastreams (Yusaku Sugai).

from contrib/pngminim/*/makefile

    to put png.h and pngconf.h in $prefix/include, like the other scripts,
    instead of in $prefix/include/libpng.

    to pngconf.h in version 1.2.41.

about deprecated function use and deprecated structure access unless the
user defines PNG_PEDANTIC_WARNINGS.  Added "#define PNG_NO_PEDANTIC_WARNINGS"
in the libpng source files.  Removed "-DPNG_CONFIGURE_LIBPNG" from the
makefiles and projects since the warnings no longer depend on this.