Selected Boost API aapcs for architecture arm and cpu "cortex-a5+vfpv4" 
###
### Using 'gcc' toolset.
###
rm -rf bootstrap
mkdir bootstrap
gcc -o bootstrap/jam0 command.c compile.c constants.c debug.c execcmd.c frames.c function.c glob.c hash.c hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c object.c option.c output.c parse.c pathsys.c regexp.c rules.c scan.c search.c subst.c timestamp.c variable.c modules.c strings.c filesys.c builtins.c class.c cwd.c native.c md5.c w32_getreg.c modules/set.c modules/path.c modules/regex.c modules/property-set.c modules/sequence.c modules/order.c execunix.c fileunix.c pathunix.c
./bootstrap/jam0 -f build.jam --toolset=gcc --toolset-root= clean
...found 1 target...
...updating 1 target...
...updated 1 target...
./bootstrap/jam0 -f build.jam --toolset=gcc --toolset-root=
...found 160 targets...
...updating 3 targets...
[MKDIR] bin.linuxx86_64
[COMPILE] bin.linuxx86_64/b2
[COPY] bin.linuxx86_64/bjam
...updated 3 targets...
time: package/feeds/packages/boost/host-compile#51.43#12.16#67.23