[vim/vim] Undefined symbol on Solaris 10 (Issue #19803)
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idgn23
Mar 23, 2026, 4:19:31 PM (yesterday) Mar 23
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idgn23 created an issue (vim/vim#19803)Steps to reproduce
Unreferenced Symbol when building on Solaris 10.
Introduced with 9.2.0153. The previous version, 152, builds fine.
Expected behaviour
Should not happen
Version of Vim
9.2.0153
Environment
Solaris 10 sparc, OpenCSW build environment.
Logs and stack traces
/opt/csw/bin/gcc-5.5 -mcpu=v9 -Wa,-xarch=v8plus -L/opt/csw/lib -o vim objects/alloc.o objects/arabic.o objects/arglist.o objects/autocmd.o objects/beval.o objects/buffer.o objects/change.o objects/blob.o objects/blowfish.o objects/cindent.o objects/clientserver.o objects/clipboard.o objects/cmdexpand.o objects/cmdhist.o objects/crypt.o objects/crypt_zip.o objects/debugger.o objects/dict.o objects/diff.o objects/digraph.o objects/drawline.o objects/drawscreen.o objects/edit.o objects/eval.o objects/evalbuffer.o objects/evalfunc.o objects/evalvars.o objects/evalwindow.o objects/ex_cmds.o objects/ex_cmds2.o objects/ex_docmd.o objects/ex_eval.o objects/ex_getln.o objects/fileio.o objects/filepath.o objects/findfile.o objects/float.o objects/fold.o objects/fuzzy.o objects/getchar.o objects/gc.o objects/gui_xim.o objects/hardcopy.o objects/hashtab.o objects/help.o objects/highlight.o objects/if_cscope.o objects/if_xcmdsrv.o objects/indent.o objects/insexpand.o objects/linematch.o objects/list.o objects/locale.o objects/logfile.o objects/map.o objects/mark.o objects/match.o objects/mbyte.o objects/memline.o objects/menu.o objects/misc1.o objects/misc2.o objects/mouse.o objects/move.o objects/normal.o objects/ops.o objects/option.o objects/optionstr.o objects/os_unix.o objects/pathdef.o objects/popupmenu.o objects/popupwin.o objects/profiler.o objects/pty.o objects/quickfix.o objects/regexp.o objects/register.o objects/screen.o objects/scriptfile.o objects/search.o objects/session.o objects/sha256.o objects/sign.o objects/sound.o objects/spell.o objects/spellfile.o objects/spellsuggest.o objects/strings.o objects/syntax.o objects/tabpanel.o objects/tag.o objects/term.o objects/terminal.o objects/testing.o objects/textformat.o objects/textobject.o objects/textprop.o objects/time.o objects/tuple.o objects/typval.o objects/ui.o objects/undo.o objects/usercmd.o objects/userfunc.o objects/version.o objects/vim9class.o objects/vim9cmds.o objects/vim9compile.o objects/vim9execute.o objects/vim9expr.o objects/vim9generics.o objects/vim9instr.o objects/vim9script.o objects/vim9type.o objects/viminfo.o objects/window.o objects/bufwrite.o objects/vterm_encoding.o objects/vterm_keyboard.o objects/vterm_mouse.o objects/vterm_parser.o objects/vterm_pen.o objects/vterm_screen.o objects/vterm_state.o objects/vterm_unicode.o objects/vterm_vterm.o objects/if_python.o objects/netbeans.o objects/job.o objects/channel.o objects/xdiffi.o objects/xemit.o objects/xprepare.o objects/xutils.o objects/xhistogram.o objects/xpatience.o objects/charset.o objects/json.o objects/main.o objects/memfile.o objects/message.o -lm -lsocket -lncurses -liconv -lsec -lintl Undefined first referenced symbol in file gethostbyname objects/channel.o (symbol belongs to implicit dependency /lib/libnsl.so.1) inet_ntoa objects/channel.o (symbol belongs to implicit dependency /lib/libnsl.so.1) ld: fatal: symbol referencing errors. No output written to vim collect2: error: ld returned 1 exit status gmake[1]: *** [Makefile:2085: vim] Error 1
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Christian Brabandt
Mar 23, 2026, 4:54:18 PM (yesterday) Mar 23
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chrisbra left a comment (vim/vim#19803)Does this work?
make LDFLAGS="-lnsl -lsocket"
If yes, can you check, if the following patch fixes it for you?
diff --git a/src/auto/configure b/src/auto/configure index 93ee5ea65..8e73d97b1 100755 --- a/src/auto/configure +++ b/src/auto/configure @@ -8820,6 +8820,57 @@ then : LIBS="-lsocket $LIBS" +fi + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5 +printf %s "checking for gethostbyname in -lnsl... " >&6; } +if test ${ac_cv_lib_nsl_gethostbyname+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) ac_check_lib_save_LIBS=$LIBS +LIBS="-lnsl $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. + The 'extern "C"' is for builds by C++ compilers; + although this is not generally supported in C code supporting it here + has little cost and some practical benefit (sr 110532). */ +#ifdef __cplusplus +extern "C" +#endif +char gethostbyname (void); +int +main (void) +{ +return gethostbyname (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO" +then : + ac_cv_lib_nsl_gethostbyname=yes +else case e in #( + e) ac_cv_lib_nsl_gethostbyname=no ;; +esac +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_gethostbyname" >&5 +printf "%s\n" "$ac_cv_lib_nsl_gethostbyname" >&6; } +if test "x$ac_cv_lib_nsl_gethostbyname" = xyes +then : + printf "%s\n" "#define HAVE_LIBNSL 1" >>confdefs.h + + LIBS="-lnsl $LIBS" + fi fi @@ -8891,57 +8942,6 @@ then : fi else - { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5 -printf %s "checking for gethostbyname in -lnsl... " >&6; } -if test ${ac_cv_lib_nsl_gethostbyname+y} -then : - printf %s "(cached) " >&6 -else case e in #( - e) ac_check_lib_save_LIBS=$LIBS -LIBS="-lnsl $LIBS" -cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ - -/* Override any GCC internal prototype to avoid an error. - Use char because int might match the return type of a GCC - builtin and then its argument prototype would still apply. - The 'extern "C"' is for builds by C++ compilers; - although this is not generally supported in C code supporting it here - has little cost and some practical benefit (sr 110532). */ -#ifdef __cplusplus -extern "C" -#endif -char gethostbyname (void); -int -main (void) -{ -return gethostbyname (); - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO" -then : - ac_cv_lib_nsl_gethostbyname=yes -else case e in #( - e) ac_cv_lib_nsl_gethostbyname=no ;; -esac -fi -rm -f core conftest.err conftest.$ac_objext conftest.beam \ - conftest$ac_exeext conftest.$ac_ext -LIBS=$ac_check_lib_save_LIBS ;; -esac -fi -{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_gethostbyname" >&5 -printf "%s\n" "$ac_cv_lib_nsl_gethostbyname" >&6; } -if test "x$ac_cv_lib_nsl_gethostbyname" = xyes -then : - printf "%s\n" "#define HAVE_LIBNSL 1" >>confdefs.h - - LIBS="-lnsl $LIBS" - -fi - { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether compiling with IPv4 networking is possible" >&5 printf %s "checking whether compiling with IPv4 networking is possible... " >&6; } if test ${vim_cv_ipv4_networking+y} diff --git a/src/configure.ac b/src/configure.ac index 495c8de40..3787701e3 100644 --- a/src/configure.ac +++ b/src/configure.ac @@ -2238,6 +2238,8 @@ if test "$enable_channel" = "yes"; then AC_CHECK_LIB(network, socket) else AC_CHECK_LIB(socket, socket) + dnl On Solaris we need the nsl library. + AC_CHECK_LIB(nsl, gethostbyname) fi AC_CACHE_CHECK([whether compiling with IPv6 networking is possible], [vim_cv_ipv6_networking], @@ -2274,8 +2276,6 @@ if test "$enable_channel" = "yes"; then AC_DEFINE(FEAT_IPV6) AC_CHECK_FUNCS(inet_ntop) else - dnl On Solaris we need the nsl library. - AC_CHECK_LIB(nsl, gethostbyname) AC_CACHE_CHECK([whether compiling with IPv4 networking is possible], [vim_cv_ipv4_networking], [AC_LINK_IFELSE([AC_LANG_PROGRAM([ #include <stdio.h>
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idgn23
3:39 PM (8 hours ago) 3:39 PM
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idgn23 left a comment (vim/vim#19803)make LDFLAGS="-lnsl -lsocket" works. I will try the patch later.
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