992N/A - The AM_COND_IF macro also works if the shell expression for the
992N/A conditional is no longer valid for the condition.
992N/A+* SECURITY VULNERABILITIES!
992N/A+ - The recipe of the 'distcheck' no longer grants anymore temporary
992N/A+ world-wide write permissions on the extracted distdir. Even if such
992N/A+ rights were only granted for a vanishingly small time window, the
992N/A+ implied race condition proved to be enough to allow a local attacker
992N/A+ to run arbitrary code with the privileges of the user running "make
992N/A+ distcheck". This is CVE-2012-3386.
992N/A - The order of Yacc and Lex flags is fixed to be consistent with other
992N/A ## Make the new source tree read-only. Distributions ought to work in
992N/A ## this case. However, make the top-level directory writable so we
992N/A ## can make our new subdirs.
992N/A- chmod -R a-w $(distdir); chmod a+w $(distdir)
992N/A+ chmod -R a-w $(distdir); chmod u+w $(distdir)
992N/A mkdir $(distdir)/_build
992N/A ## Undo the write access.