* posix/glob.c [! STDC_HEADERS]: Declare getenv.
(glob): Avoid using function as value.
* elf/rtld.c (dl_main): When mapping argument executable, set
l_name to "", not l_libname.
After loading DT_NEEDED library, set its l_type to lt_library.
* sysdeps/mach/hurd/mmap.c: Don't interpret MAP_INHERIT to mean
VM_INHERIT. We can't handle MAP_INHERIT easily.
Handle non-page-aligned addresses if congruent to offset.
* elf/dl-init.c: Skip the initializer for l_type lt_executable
with l_name "". Start at _dl_loaded; don't skip the first element.
* elf/dl-load.c (MAP_FILE): Define to zero if undefined.
(MAP_COPY): Define to MAP_PRIVATE if undefined.
(_dl_map_object_from_fd): Don't use MAP_INHERIT in mmap calls.
If file it ET_EXEC, set its l_type to lt_executable.
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