lib64png-devel riscv64 dd545841826bbe79ddb8653b1bbcb68efb4fef5a369df9154cf92a9bb2ab4ad9 Development tools for programs to manipulate PNG image format files The libpng-devel package contains the header files and libraries necessary for developing programs using the PNG (Portable Network Graphics) library. http://www.libpng.org/pub/png/libpng.html