There's a regression in v4.4 where if you invoke make with both -C and -I parameters, the include directory specified by -I is not seen in the Makefile by the include directives it contains.

for example let's consider a folder containing these files/folders:

inc/test  (empty file included by Makefile)
src/Makefile

Makefile has this content

include test

all:

In that folder, this execution fails, as the include directive is not taken into account -I../inc (the bug):

make -C src -I../inc all
make: Entering directory '/tmp/make_include_bug/src'
Makefile:1: test: No such file or directory
make: *** No rule to make target 'test'.  Stop.
make: Leaving directory '/tmp/make_include_bug/src'

v4.3 works fine (no error), as well as:

(cd src ; make -I../inc all)

So it is really the combination of -C and -I that does not work anymore.

I have attached a small archive with the folder structure above.

This regression was initially discovered when compiling sbcl which is using such construct.