I am writing a program using Fedora Core Linx 6, Intel. I have no direct dependencies to Allegro in my program. However, when I try to build I get many errors like the following when trying to link:

/usr/lib/liballeg.so.4.2: undefined reference to `_poly_zbuf_atex_mask_trans15'
/usr/lib/liballeg.so.4.2: undefined reference to `_poly_scanline_ptex_mask_lit16d'
/usr/lib/liballeg.so.4.2: undefined reference to `_poly_scanline_atex_lit15x'
/usr/lib/liballeg.so.4.2: undefined reference to `_poly_scanline_atex_mask_trans32'
/usr/lib/liballeg.so.4.2: undefined reference to `_poly_zbuf_ptex_trans8'
...

I have no idea what is causing these errors and how to fix them.
What is needed to resolve these undefined references?

What is your command line?

I'm not sure what you mean. I am building a C++ program from a Makefile.

Here is the command that attempts to do the link:

g++ -g -Wall -ansi -pedantic Animation.o BoundingVolume.o Character.o DataLoader.o EventData.o FileTag.o Joint.o KeyFrame.o LineSegment.o Matrix.o MeshMaterial.o MeshVertex.o Quadruple.o Quaternion.o ResponseData.o Scene.o SceneElement.o SkeletalAnimation.o SkinnedMesh.o SkinnedMeshLoader.o SkinnedVertexBuffer.o SkinnedVertex.o TextureManager.o Tweeners.o Utilities.o Vector3D.o XApplication.o XSceneController.o XWorldTestView.o -o WorldTest -L/usr/X11R6/lib -lX11 -lGL -lGLU -lIL -lILU -lILUT

It is not adding Allegro's libraries, that is why it fails. The makefile should also add `allegro-config --libs` to the command line to link against Allegro.

Okay, that fixed the problem.
Thanks

Nevertheless, it is pretty strange that, having no dependencies to Allegro, you need it. Maybe one of those libraries do need it.