The following dependencies were incorrect:

• sage.matrix.matrix_mod2_dense does not use png.h
• sage.modules.vector_mod2_dense does not use png.h
• sage.matrix.matrix_rational_dense does not use m4ri.h

The following dependencies are in Cython files, so Cython picks them up automatically:

• sage.matrix.matrix_mod2_dense dependency on m4ri.h
• sage.modules.vector_mod2_dense dependency on m4ri.h
• sage.matrix.matrix_gf2e_dense dependency on m4rie.h

The following include and dependency was removed:

• pb_wrap.h included m4ri/m4ri.h for no apparent reason, everything still works after removing that include (and therefore also the dependency)

CC: @dimpase @embray

Component: build

Author: Jeroen Demeyer

Branch/Commit: ca7bfae

Reviewer: Erik Bray

Issue created by migration from https://trac.sagemath.org/ticket/28352