This if for clang (pre)release 15.0.0.
tccrun.c:
- update directory/filename read. clang has extra md5 section
- start with filename 0 instead of 1. clang starts at 0
- change dwarf_read_32/dwarf_read_64 into macros
x86_64-link.c:
- Add support for R_X86_64_DTPOFF64/R_X86_64_TPOFF64. Needed by clang
tests/tcctest.c:
- add prototypes for puts/alloca. clang fails with error
- disable other_constraints_test for clang. clang prints 1 instead of 0
499cf2305b