Hi Benji: What does 'whereis libpng.so' report ? I'm wondering if you have another libpng somewhere... Maybe you should check for an old zlib too... Best, == dp Benjamin Flaming wrote: >I'm trying to build SpiralSynthModular on a Slackware 9.0 system. Everything seems to go fine until I get: > >/usr/local/lib/libpng.so: undefined reference to `deflate' >/usr/local/lib/libpng.so: undefined reference to `inflate' >/usr/local/lib/libpng.so: undefined reference to `inflateInit_' >/usr/local/lib/libpng.so: undefined reference to `crc32' >/usr/local/lib/libpng.so: undefined reference to `deflateInit2_' >/usr/local/lib/libpng.so: undefined reference to `inflateReset' >/usr/local/lib/libpng.so: undefined reference to `deflateReset' >/usr/local/lib/libpng.so: undefined reference to `inflateEnd' >/usr/local/lib/libpng.so: undefined reference to `deflateEnd' >collect2: ld returned 1 exit status >make: *** [spiralsynthmodular] Error 1 > >I downloaded, built, and installed the latest version of libpng (including the obligatory download/build/install of the latest zlib), and ran ldconfig, but I still get this message. I've tried building 0.2.0rc2 instead of 0.2.1, but the result is the same. I also tried not using the --enable-jack option when "./configure"ing, with no effect. > >gcc version is 3.2.2 >ld version is 2.13.90.0.18 20030121 > >Any suggestions? > >|) >|)enji > > >