libpng12.so.0 no version information available
On our 10.1 opensuse hosts, an annoying message is printed out at the start of running programs that are part of a MIRIAD install. This appears to be related to an improperly built rpm for libpng that was distributed by many different linux distributions, including opensuse.
colby@peridot ~ % imfit imfit: /usr/lib64/libpng12.so.0: no version information available (required by /hcro/miriad/build/lib/libpgplot.so.0) ImFit: version 1.0 28-mar-03 ### Fatal Error [imfit]: The object keyword must be set
It does not keep the programs from running, but, I've been wanting to fix this for a while and with a small amount of googling, came to the conclusion that the easiest fix would be to do a custom build of libpng.
After downloading the version I needed (libpng 1.2.x) the default build steps of,
./configure --prefix=/usr make make install
built and installed the libraries into /usr/lib. Note that this is changing the libraries system wide, and requires root access to the host. This does not create libraries for /usr/lib64 (for 64bit hosts), and you should not copy the 32-bit versions from /usr/lib/*png* into /usr/lib64, else you will see an error like:
error while loading shared libraries: libpng12.so.0: wrong ELF class: ELFCLASS32
Here's what you can do to install 64-bit versions,
export CFLAGS="-m64" export LDFLAGS="-m64" ./configure --prefix=/usr --libdir=/usr/lib64 make make install
et voila, no more annoying message about the libpng library!
colby@peridot ~ % imfit ImFit: version 1.0 28-mar-03 ### Fatal Error [imfit]: The object keyword must be set