On Thursday 2014-11-13 13:09, Giorgio Dal Molin wrote: > >Without a correctly defined 'Requires:' header failures can happen >while linking a program against 'libnftnl', expecially while cross compiling. > ># make V=1 all >... >arm-926ejs-linux-gnueabi-gcc -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wdeclaration-after-statement -Wsign-compare -Winit-self -Wformat-nonliteral -Wformat-security -Wmissing-format-attribute -Wcast-align -Wundef -Wbad-function-cast -O2 -msoft-float -mabi=aapcs-linux -march=armv5te -mtune=arm926ej-s -mcpu=arm926ej-s -w -L/tmp/pkg_root/lib -o nft main.o rule.o statement.o datatype.o expression.o evaluate.o proto.o payload.o exthdr.o meta.o ct.o netlink.o netlink_linearize.o netlink_delinearize.o segtree.o rbtree.o gmputil.o utils.o erec.o mnl.o scanner.o parser_bison.o -L/tmp/pkg_root/lib -lmnl -L/tmp/pkg_root/lib -lnftnl -lgmp >arm-926ejs-linux-gnueabi/bin/ld: warning: libjansson.so.4, needed by /tmp/pkg_root/lib/libnftnl.so, not found (try using -rpath or -rpath-link) >/tmp/pkg_root/lib/libnftnl.so: undefined reference to `json_integer_value' Can you actually check whether `LD_LIBRARY_PATH=/tmp/pkg_root/lib ldd -r /tmp/pkg_root/lib/libnftnl.so` succeeds? Programs should generally need not be concerned with 3rd-level symbols. Adding json to the command line for linking the nft program seems wrong (when you have a build with shared libraries), because nft does not appear to be using any of the json_* symbols. >index 55b28ab..ff29200 100644 >--- a/configure.ac >+++ b/configure.ac >@@ -39,19 +39,24 @@ case "$host" in > *) AC_MSG_ERROR([Linux only, dude!]);; > esac > >+NFTNL_PC_DEPS=libmnl > regular_CPPFLAGS="-D_FILE_OFFSET_BITS=64 -D_REENTRANT" > AS_IF([test "x$with_xml_parsing" = "xyes"], [ > regular_CPPFLAGS="$regular_CPPFLAGS -DXML_PARSING" >+ NFTNL_PC_DEPS+=" mxml" > ]) += is not portable to sh; such should be of the form a="$a b". -- 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
