Merge branch 'master' into portable

diff --cc ChangeLog
Simple merge

diff --cc backends/ChangeLog
Simple merge

diff --cc backends/Makefile.am
Simple merge

diff --cc configure.ac
Simple merge

diff --cc libdw/ChangeLog
Simple merge

diff --cc libdwfl/ChangeLog
Simple merge

diff --cc libdwfl/linux-core-attach.c
Simple merge

diff --cc libebl/ChangeLog
Simple merge

diff --cc src/ChangeLog
Simple merge

diff --cc src/readelf.c
Simple merge

diff --cc tests/ChangeLog
Simple merge