* make_bc.bat
+ Added auto detection with auto setup of \BCC55 as SET_BCC_55
+ Added auto detection with auto setup of C:\win_flex_bison-2.5.5 as
+ Added: IF "%CC%"=="bcc32c" SET SUB_DIR=b32c
* source/rdd/usrrdd/rdds/adordd/make_b32.bat
* source/rdd/usrrdd/rdds/adordd/makefile.bc
* tests/dll_b32.mak
* tests/dll_b32.bat
* modify hard coded b32 to %SUB_DIR% to differentiate between bcc32 (b32) and bcc32c (b32c)
* winmake/common3.mak
* Modified hard coded bison to $(BISON) to allow support for win_bison.exe
* winmake/makefile.bc
* Modified OPT_FLAGS of bcc32c to use same flags as bcc32
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This commit allows side by side coexistance of legacy bcc32.exe and
CLang based bcc32c.exe
This also allows xHarbour core to be built using BCC 5.5 (must use
win_bison 2.5 or later compatible with your Windows.