Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> wrote: > > > src/scanner.o: In function `nft_realloc': > > > /home/nwd/lab/nftables/nftables-20140407/<stdout>:4260: undefined > > > reference to `rpl_realloc' > > > > This happens when configure thinks malloc/realloc are missing. > > > > Any objetions wrt. removing AC_FUNC_MALLOC/AC_FUNC_REALLOC from > > nftables configure.ac? > > If that resolves the problem, please go ahead, thanks Florian. The problem is two-fold. When libnftnl has just been installed and is not yet in linker path, the malloc/realloc test will fail: configure:4557: gcc -o conftest -I/usr/local/libnftnl/include -L/usr/local/libnftnl/lib conftest.c -lreadline -lgmp -lnftnl -lmnl >&5 configure:4557: $? = 0 configure:4557: ./conftest ./conftest: error while loading shared libraries: libnftnl.so.0: cannot open shared object file: No such file or directory That error is only in config.log, and config.h redefines malloc/realloc with rpl_ prefix, which then yields the mysterious 'undefined reference to `rpl_realloc'' error when compiling nftables. The 2nd problem is that the macro executes the built program, which has the usual cross-compiling issue. AFAIU these macros are only useful to check if malloc(0) returns non-NULL and that realloc(NULL, .. works, hence the question if these should just be removed. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
