Based on a fix from OpenSUSE, but adjusted to be Clang-compatible too. Pass
-Wno-implicit-function-declaration library-wide rather than using local GCC
pragmas.
Fix of copy_past_newline() to avoid triggering -Wstrict-prototypes.
Link: https://build.opensuse.org/request/show/1178775
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>
