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Note that the problem for gcc is not completely solved just by compiling gcc with tcc. To build gcc (with tcc) you need to run ./configure which depends on tr, diff, mktemp etc. All of which need to built using a C compiler on a Unix. So at some point we need to build these tools without ./configure and without a working Unix.
 
Note that the problem for gcc is not completely solved just by compiling gcc with tcc. To build gcc (with tcc) you need to run ./configure which depends on tr, diff, mktemp etc. All of which need to built using a C compiler on a Unix. So at some point we need to build these tools without ./configure and without a working Unix.
 
== About the dependency graph ==
 
 
There is a great page that has an analysis of debians dependency graph, sorted into strongly connected components:
 
 
* https://bootstrap.debian.net/botch-native/amd64/stats.html
 
 
Any directed graph can be organized into a DAG (directed acyclic graph) of SCCs (strongly connected components). A DAG of packages can be built in sequence but an SCC will contain loops. The aim is to break all loops. Knowing the SCCs is valuable because it shows you where work needs to be done.
 

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