b79d50c582
* include/hbexpra.c
* include/hbexprop.h
* source/common/expropt1.c
* source/compiler/expropta.c
* source/macro/macro.y
* source/macro/macroa.c
* source/vm/macro.c
* fixed to release memory in cases where invalid
syntax was macro compiled
* source/vm/itemapi.c
* fixed to correctly check for infinity on Unix
STR(LOG(-1)) no longer core dumps
* source/rtl/filesys.c
* source/rdd/hbdbsort.c
* fixed to suppres warnings
* source/pp/ppcore.c
* utils/hbtest/rt_misc.prg
* Clipper preproceses '**' into '^' - harbour too