Regression introduced by df2b9b48cb.
This breaks the build for ltrace and other programs using libelf,
because the header file relies on features from glibc >= 2.22.
Here is an excerpt from the log output of the configure script from
ltrace:
In file included from ...elfutils-0.165/include/gelf.h:32:0,
from conftest.c:57:
...elfutils-0.165/include/libelf.h:280:8: error: unknown type name 'Elf32_Chdr'
extern Elf32_Chdr *elf32_getchdr (Elf_Scn *__scn);
^
...elfutils-0.165/include/libelf.h:281:8: error: unknown type name 'Elf64_Chdr'
extern Elf64_Chdr *elf64_getchdr (Elf_Scn *__scn);
^
In file included from conftest.c:57:0:
...elfutils-0.165/include/gelf.h:89:9: error: unknown type name 'Elf64_Chdr'
typedef Elf64_Chdr GElf_Chdr;
^
The issue has been reported in the Debian bug tracker at
https://bugs.debian.org/810885 and I'm using the patch from Mark
Wielaard that has been posted there which adds compatibility for older
glibc versions.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
