23172a52ce
* harbour/config/global.cf
+ added HB_DB_DRVEXT envvar support for additional RDDs
* harbour/config/linux/gcc.cf
+ harbour/config/linux/gpp.cf
+ added GNU C++ support
* harbour/config/linux/owatcom.cf
* harbour/contrib/btree/hb_btree.c
* harbour/contrib/libct/ct.h
* harbour/contrib/libct/ctc.c
* harbour/contrib/odbc/odbc.c
* harbour/contrib/rdd_ads/adsfunc.c
* harbour/include/hbapi.h
* harbour/include/hbapierr.h
* harbour/include/hbapigt.h
* harbour/include/hbapilng.h
* harbour/source/compiler/harbour.c
* harbour/source/rtl/console.c
* harbour/source/rtl/datec.c
* harbour/source/rtl/diskspac.c
* harbour/source/rtl/errorapi.c
* harbour/source/rtl/errorint.c
* harbour/source/rtl/filesys.c
* harbour/source/rtl/fssize.c
* harbour/source/rtl/fstemp.c
* harbour/source/rtl/gtapi.c
* harbour/source/rtl/isprint.c
* harbour/source/rtl/natmsg.c
* harbour/source/rtl/philes.c
* harbour/source/rtl/setcolor.c
* harbour/source/rtl/spfiles.c
* harbour/source/rtl/gtcrs/gtcrs.c
* harbour/source/rtl/gtsln/gtsln.c
* harbour/source/rtl/gtsln/kbsln.c
* harbour/source/vm/itemapi.c
* harbour/source/vm/memvars.c
* harbour/source/vm/runner.c
* fixed for popper compilation with GNU C++ and OpenWatcom on Linux