Remove gcc, gcc-c++ and make from minimal build root

[Ralf Corsepius]

On 01/13/2015 12:06 PM, Vít Ondruch wrote:
> Dne 13.1.2015 v 08:12 Ralf Corsepius napsal(a):
>
> So we are even not able to tell how many packages are written in C or
> C++ in Fedora, since we do not have the BuildRequires speficied
> correctly.
Correct.

> Because we have still the false feeling that everything is in
> C/C++, we regularly doing mass rebuilds and wasting resources (mass
> rebuild has also different advantages, but the rebuild due to rebased
> GCC is the major one).
There are other reasons for mass-rebuilds. Most prominently: Changes 
inside of rpm and rpm-macros.

> So lets try to find what is written in C/C++ by some different way. Is
> that true, that every package in C/C++ compiled using gcc depends on
> glibc? Then we can use this query to get the number of packages:
>
> $ repoquery --source --whatrequires 'libc.so.6(GLIBC_2.4)(64bit)' | sort
> | uniq | wc -l
> 2834

Well, ... any explanation why this figure differs significantly from 
this brute force estimate [1]:
# rpm -q --qf "%{SOURCERPM}\n" \
  -p rawhide/i386/os/Packages/*/*.i686.rpm 2>/dev/null | sort -u | wc -l
7706

Ralf

[1] Counting the unique src.rpms of all binary rpms in a local rawhide 
mirror.