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+++ This bug was initially created as a clone of Bug #1984891 +++
adcli-0.9.1-8.fc35 contains the following configure check:
AC_MSG_CHECKING(for which library has res_query)
for lib in "" "-lresolv"; do
saved_LIBS="$LIBS"
LIBS="$LIBS $lib"
AC_LINK_IFELSE([
AC_LANG_PROGRAM([#include <resolv.h>],
[res_query (0, 0, 0, 0, 0)])
],
[ AC_MSG_RESULT(${lib:-libc}); have_res_query="yes"; break; ],
[ LIBS="$saved_LIBS" ])
done
In glibc 2.34, res_query has been moved into libc, so this no longer picks up -lresolv. However, in library/addisco.c, adcli uses ns_get32, and this symbol still needs -lresolv.
This leads to this linker failure:
libtool: link: gcc -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -g -Wall -Wstrict-prototypes -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wdeclaration-after-statement -Wformat=2 -Winit-self -Waggregate-return -Wno-missing-format-attribute -Wmissing-include-dirs -Wundef -Wl,-z -Wl,relro -Wl,--as-needed -Wl,-z -Wl,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -o adcli computer.o entry.o info.o tools.o -Wl,-z -Wl,relro -Wl,--as-needed -Wl,-z -Wl,now ../library/.libs/libadcli.a -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lkrb5support -llber -lldap
/usr/bin/ld: /tmp/ccve9tqE.ltrans1.ltrans.o: undefined reference to symbol 'ns_get32@@GLIBC_2.9'
/usr/bin/ld: /usr/lib64/libresolv.so.2: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
For Fedora, it should be possible to link with -lresolv unconditionally due to the --as-needed linker flag.