The /usr/lib/libpng.a file contains the definition of the png_read_data symbol, but the /usr/lib/libpng.so file has no mention of it.
The command
apt-get --compile source pngcrush
fails with numerous undefined png_* symbols.
The /usr/lib/libpng.a file contains the definition of the png_read_data symbol, but the /usr/lib/libpng.so file has no mention of it.
The command
apt-get --compile source pngcrush
fails with numerous undefined png_* symbols.