shell script run when I am root but I get a permission denied when it is invoked from a Makefile (still as root)

Question

I need to run a Make script that invokes a shell script.

I can run the shell script directly as root but when running make on the makefile (still as roo

Answer 1

Adding execution permission to the file Group rather that the file User fixed the issue.

PS: I wonder why? It seems the Make utility run shell scripts not with the same user that started Make...