beam-3.6.1/bin/beam_configure --c gcc    -will create compiler_c_config.tcl

vi compiler_c_config.tcl  and add this under include section
lappend beam::compiler::c::system_include_path {/usr/include/i386-linux-gnu/}

run beam like this output is in BEAM-complaints file m32 is for 32 bit
./beam-3.6.1/bin/beam_compile --beam::compiler=/home/adlai/beam/compiler_c_config.tcl --beam::complaint_file=path/BEAM-complaints -m32 -c bug.c

in Makefile do:
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BEAM_OPTIONS = --beam::complaint_file=/home/adlai/BEAM-complaints --beam::compiler=/home/adlai/beam/compiler_c_config.tcl

beam:
	/home/adlai/beam/beam-3.6.1/bin/beam_compile $(CFLAGS) $(INCFLAGS) $(BEAM_OPTIONS) api.c db.c gen_pfc.c gen_bpf.c bpf_helper.c
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