GNU make 3.82 has introduced some backward incompatibilities. As a result,
chromium cannot be built with make 3.82. Here's what happens:

$ ~/make-3.82/make -n chrome V=1 BUILDTYPE=Release | head -n2
chrome/common_constants.target.mk:6: *** missing separator.  Stop.
$

Here's what's supposed to happen:

$ ~/make-3.81/make -n chrome V=1 BUILDTYPE=Release | head -n2
printf '%s\n' '  export LD_LIBRARY_PATH=/var/tmp/paludis/build/net-www-chromium-6.0.485.0/work/chromium-6.0.485.0/out/Release/lib.host:/var/tmp/paludis/build/net-www-chromium-6.0.485.0/work/chromium-6.0.485.0/out/Release/lib.target:$LD_LIBRARY_PATH; cd build/util; mkdir -p /var/tmp/paludis/build/net-www-chromium-6.0.485.0/work/chromium-6.0.485.0/out/Release/obj/gen/build; python ./lastchange.py -o "/var/tmp/paludis/build/net-www-chromium-6.0.485.0/work/chromium-6.0.485.0/out/Release/obj/gen/build/LASTCHANGE" -d ../LASTCHANGE.in'
mkdir -p out/Release/obj/gen/build/ out/Release/.deps/out/Release/obj/gen/build/
$ 

The offending line is:

$ sed -n 6p chrome/common_constants.target.mk 
quiet_cmd_common_constants_Make chrome_version.cc = ACTION common_constants_Make chrome_version.cc $@
$

For more info see http://groups.google.com/group/gnu.announce/browse_thread/thread/d6a3f5691ab08a0a/abe5b92f6cbc4020?show_docid=abe5b92f6cbc4020