Current maint-2.4 TBB build is broken on systems with patch >= 2.7
I tried compiling TBB from the maint-2.4 branch in torbrowser.git, and make -f linux.mk errors with the message
File browser/branding/official/background.png: git binary diffs are not supported.
and the same for a number of other image files. These image files recently (revision 427d12c3) became binary diffs in 0011-Rebrand-Firefox-to-TorBrowser.patch. GNU patch 2.7 introduced the ability to handle git diffs, with these words:
Support for most features of the "diff --git" format, including renames and copies, permission changes, and symlink diffs. Binary diffs are not supported yet; patch will complain and skip them.
It appears this is what is happening here, so I propose going back simply copying the images from the branding directory (which is probably the intended procedure anyway).