elf2flt: fix build when zlib is not installed on the host

For a reason that's fairly unclear to me, Peter added a '-lz' link
flag to the elf2flt.mk build in d5664ee99 ("elf2flt: fix link").

However, the zlib library may not necessarily be installed on the host
machine, so we should depend on host-zlib, and pass the appropriate
LDFLAGS. This is what this patch does.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
gcc: fix gcc 4.8 build when thread support is disabled

When thread support is disabled, the libitm and libatomic libraries
from gcc should be disabled, otherwise, the build of gcc fails.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
toolchain: blackfin: Remove Blackfin toolchain 2011R1 release.

ADI officially supports the buildroot and related GNU toolchain for
Blackfin since ADI's 2012R1 release only. In order to avoid confusion,
it is better to remove the 2011R1 GNU toolchain for Blackfin. In
addition, the 2011R1 GNU toolchain for Blackfin doesn't support the
BF60x processors.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
flex: needs M4 at runtime

For proper runtime execution, flex requires m4 to be
installed. Passing a M4 variable at configure time is needed,
otherwise flex on the target will try to use a 'm4' binary with a
build machine path.

Fixes bug #4988.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Remove useless CVS related files

Fixes bug #5912.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
CHANGES: update with recent changes

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Merge remote-tracking branch 'upstream/master'