On 09/02/2017 01:33 AM, Paul Eggert wrote: > +AC_CHECK_FUNCS_ONCE([__libc_scratch_buffer_grow])
This configure test is invalid because __libc_scratch_buffer_grow is a GLIBC_PRIVATE symbol not part of the ABI. You really need to rename those __libc_* functions because they are in the internal glibc namespace. Furthermore, struct scratch_buffer depends on a GNU C extension: assignment to an object changes its dynamic type. It is not standard C. Standard C only allows one way to allocate untyped memory, and that is malloc. Thanks, Florian
