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`.lcomm SYMBOL , LENGTH'
========================

   Reserve LENGTH (an absolute expression) bytes for a local common
denoted by SYMBOL.  The section and value of SYMBOL are those of the
new local common.  The addresses are allocated in the bss section, so
at run-time the bytes will start off zeroed.  SYMBOL is not declared
global (see `.global': Global.), so is normally not visible to `ld'.