Now that you have enabled the deb-src archive, you can install the build dependencies of the Debian emacs package with the following on the command line: Building aclocal.m4 ... Running 'autoreconf -fi -I m4' ... Building 'aclocal.m4' in exec ... Running 'autoreconf -fi' in exec ... Configuring local git repository... '.git/config' -> '.git/config.~1~' git config transfer.fsckObjects 'true' git config diff.cpp.xfuncname '!^[ ]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*]) ^((::[[:space:]]*)?[A-Za-z_][A-Za-z_0-9]*[[:space:]]*\(. *)' git config diff.shell.xfuncname '^([[:space:]]*[[:alpha:]_][[:alnum:]_]*[[:space:]]*\(\)|[[:alpha:]_][[:alnum:]_]*=)' git config diff.texinfo.xfuncname '^@node[[:space:]]+([^,[:space:]][^,]+)' Installing git hooks...