[Slackbuilds-users] celestia 1.6.0 not building

[JCA]

Here's what I am getting:

checking for X... libraries , headers
checking for gethostbyname... yes
checking for connect... yes
checking for remove... yes
checking for shmat... yes
checking for IceConnectionNumber in -lICE... yes
checking for deflate in -lz... yes
checking GL/gl.h usability... yes
checking GL/gl.h presence... yes
checking for GL/gl.h... yes
checking for glNewList in -lGL... yes
checking GL/glu.h usability... yes
checking GL/glu.h presence... yes
checking for GL/glu.h... yes
checking for gluLookAt in -lGLU... yes
checking for i486-slackware-linux-pkg-config... no
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for GTK... yes
checking for CAIRO... yes
checking for THEORA... yes
checking for jpeg_start_decompress in -ljpeg... no
configure: error: jpeg library not found

The libjpeg-v8a-i486-1 is installed in my box.