Sam Varshavchik napsal(a): > I don't know the right way to fix this, but something is definitely > broken; and something needs to be fixed, one way or the other. The > question is what exactly needs to be fixed. > LIBS="-lresolv $LIBS" > AC_TRY_LINK_FUNC(res_query, AC_MSG_RESULT(yes), AC_MSG_RESULT(no)) > /tmp/ccW7EeDX.o(.text+0x7): In function `main': > /home/mrsam/src/courier/authlib/configure:5160: undefined reference to > `res_query' > The reason appears to be that you have to #include <resolv.conf> on > x86_64 in order to succesfully pull res_query() out of libresolv.so. > You don't need to do this on x86, and the test program generated by > AC_TRY_LINK_FUNC does not include any headers, but uses a manual prototype. > > So, what now? Fetchmail uses this (after checking for the presence of the necessary header files): | AC_LINK_IFELSE([AC_LANG_PROGRAM([[ | #include <sys/types.h> | #ifdef HAVE_NETINET_IN_H | #include <netinet/in.h> | #endif | #ifdef HAVE_ARPA_NAMESER_H | #include <arpa/nameser.h> | #endif | #ifdef HAVE_RESOLV_H | #include <resolv.h> | #endif | extern int res_search(); | ]], [[res_search(0, 0, 0, 0, 0);]])], | [AC_MSG_RESULT([found]) | AC_DEFINE(HAVE_RES_SEARCH, [1], | [Define to 1 if you have the 'res_search' function.]) | break], [AC_MSG_RESULT([not found])]) Mirek -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
