* external/libhpdf/Makefile
* contrib/hbhpdf/Makefile
! Fixed to skip them when using dos hosts (due to long filenames
in libhpdf lib sources/headers)
* external/libhpdf/Makefile
+ Enabled for watcom/dos and watcom/linux targets.
* config/common/watcom.mk
* config/rules.mk
+ Added CC_FLAGS variable similar to HB_FLAGS to aid
moving flags to envvars and to reduce redundancy in rules.
* The CC_RULE hack was a little bit modified accordingly
for c-mode non-linux watcom. We're now a bit closer to
be able to drop CC_RULE override.
! Adapted above change for watcom where now all (non-user)
flags are moved to envvar when using dos shells.
e260a1aea7