[Gtkradiant] zeroradiant slackware link problems

[Martin Gerhardy]

Hi,

one of our users (RichV) has problems to compile (or better link)
zeroradiant on slackware.

[quote by RichV]
i have libjpeg installed, and on slackware development stuff is in the
same package. package has version "libjpeg-6b"
[/quote]

-----snip------
CheckUnresolved /mnt/cf/games/gtkradiant/svn/branches/ZeroRadiant/build/release/shobjs/modules/libimage.so
        linux-gate.so.1 =>  (0xb7f55000)
        libxml2.so.2 => /usr/lib/libxml2.so.2 (0xb7e14000)
        libz.so.1 => /usr/lib/libz.so.1 (0xb7e00000)
        libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb7d44000)
        libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0xb7d24000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb7c3e000)
        libm.so.6 => /lib/libm.so.6 (0xb7c18000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb7c0c000)
        libc.so.6 => /lib/libc.so.6 (0xb7ac0000)
        libdl.so.2 => /lib/libdl.so.2 (0xb7abc000)
        /lib/ld-linux.so.2 (0x80000000)
undefined symbol: _Z22jpeg_resync_to_restartP22jpeg_decompress_structi
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z16jpeg_read_headerP22jpeg_decompress_structi
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z22jpeg_finish_decompressP22jpeg_decompress_struct
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z14jpeg_std_errorP14jpeg_error_mgr
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z23jpeg_destroy_decompressP22jpeg_decompress_struct
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z21jpeg_start_decompressP22jpeg_decompress_struct
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z19jpeg_read_scanlinesP22jpeg_decompress_structPPhj
(build/release/shobjs/modules/libimage.so)
undefined symbol: _Z21jpeg_CreateDecompressP22jpeg_decompress_structij
(build/release/shobjs/modules/libimage.so)
CheckUnresolved: undefined symbols
scons: *** [build/release/shobjs/modules/libimage.so] Error 1
scons: building terminated because of errors.
--------snap--------------

any suggestions?

Martin