I have a .spec file that relies on a variable called _topdir.
Right now when you checkout the SRPM source from git, you have to go and change where _topdir is pointing to to get the rpmbuild to function correctly.
# We need the following line so that RPM can find the BUILD and SOURCES and RPMS dirs.
%define _topdir /root/projects/my-project/my-project-srpm/
How do you specify that _topdir should be relative to the location of the .spec file so that _topdir isn't hard coded?