Fix Issue 6708 - immutable ref implicit cast to const ref
ifdef x86 specific bits in elfobj and add new platform specific hooks to platform_stub.c
remove anachronistic HINT and UHINT typedefs
add goal_t typedef
cleanup OS detection
switch to GOALxxxx
add goal parameter to elxxxx()
get rid of CEXTERN
Merge pull request #1503 from WalterBright/b12

B12
Merge pull request #1502 from dawgfoto/cleanupMakefile

cleanup OS detection
Merge pull request #1501 from braddr/fix-stub

ifdef x86 specific bits in elfobj and add new platform specific hooks to platform_stub.c
Merge pull request #1496 from yebblies/issue6708

Fix Issue 6708 - immutable ref implicit cast to const ref